How many neutrons does a normal hydrogen atom have?
Answers
Hello!
Answer:
3
H contains 1 proton and 3 neutrons in its nucleus.
Hope this helps :)
Related Questions
In the Millikan oil droplet experiment, the oil is sprayed from an atomizer into a chamber. The droplets are allowed to pass through the hole into the chamber so that their fall can be observed. The top and bottom of the chamber consist of electrically charged plates. The upper plate is positively charged, and the lower plate is negatively charged. X rays are introduced into the chamber so that when they strike the oil droplets, the droplets will acquire one or more negative charges. The electric field (voltage) is applied to the metal plates.
Watch the animation and identify the effects of an electric field on the motion of a negatively charged oil droplet. Consider the gravitational force as Fg and the electric force as Fe. All the other forces acting on the oil droplet can be ignored as their effect on the motion of the oil droplet is negligible.
A/ In the absence of an electric field, the oil droplet falls freely due to the gravitational force.
B/ If Fe is increased until it is equal to Fg, the negatively charged oil droplet will remain stationary.
C/ If Fe is greater than Fg, the negatively charged oil droplet will move freely toward the negatively charged plate.
D/ In the presence of an electric field, the negatively charged oil droplet moves freely toward the negatively charged plate.
** I chose B, but that was the wrong answer
Answers
C/ If Fe is greater than Fg, the negatively charged oil droplet will move freely toward the negatively charged plate.
In the Millikan oil droplet experiment, the negatively charged oil droplets are subjected to an electric field created by the charged plates. The electric force (Fe) acts on the oil droplet in a direction opposite to the gravitational force (Fg). When Fe is greater than Fg, the electric force overcomes the gravitational force, causing the negatively charged oil droplet to experience an upward force. As a result, the oil droplet moves freely upward toward the negatively charged plate.
Option B is incorrect because if Fe is equal to Fg, the forces balance each other, resulting in a stationary droplet. However, the question states that Fe is increased until it is greater than Fg, implying that the droplet is no longer stationary but moves in response to the electric force.
Therefore, option C is the correct answer, as it describes the effect of an electric field on the motion of a negatively charged oil droplet in the Millikan oil droplet experiment.
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given c+h2so4→co2+so2+h2o, identify which element is reduced.
Answers
The element that is reduced in the reaction C + H₂SO₄ → CO₂ + SO₂ + H₂O is sulfur.
In the given chemical equation, the reactants are carbon (C) and sulfuric acid (H₂SO₄) while the products are carbon dioxide (CO₂), sulfur dioxide (SO₂), and water (H₂O). The oxidation state of sulfur in H₂SO₄ is +6 while the oxidation state of sulfur in SO₂ is +4, indicating that sulfur has undergone reduction in the reaction.
Initially, the oxidation state of carbon in C is 0, and the oxidation state of sulfur in H₂SO₄ is +6. In the products, carbon is oxidized to +4 in CO₂, while sulfur is reduced to +4 in SO₂. Thus, sulfur is the element that has undergone reduction in the given reaction.
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Express your answer in the order of orbital filling as a string without blank space between orbitals. For example, the electron configuration of LiLi would be entered as 1s^22s^1 or [He]2s^1.
1. Co2+
2. Sn2+
3. Zr4+
4. Ag+
5. S2−
Answers
The electronic configurations in the order of orbital filling as a string without blank space between orbitals are:
Co²⁺: [Ar]3d⁷
Sn²⁺: [Kr]5s²4d¹⁰
Zr⁴⁺: [Kr]4d²
Ag⁺: [Kr]4d¹⁰
S²⁻: [Ne]3s²3p⁶
Electronic configuration refers to the distribution of electrons among the various atomic orbitals of an atom or ion. It represents how the electrons occupy different energy levels and orbitals within an atom.
The electronic configuration of carbon (atomic number 6) is 1s^22s^2, which indicates that it has two electrons in the 1s orbital and two electrons in the 2s orbital.
The electron configurations of the given ions in the order of orbital filling are given as follows:
1. Co²⁺: [Ar]3d⁷
2. Sn²⁺: [Kr]5s²4d¹⁰
3. Zr⁴⁺: [Kr]4d²
4. Ag⁺: [Kr]4d¹⁰
5. S²⁻: [Ne]3s²3p⁶
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What are the free radicals?
What are the negative health consequences of high amount of free radical in the system? (3 pts)
What are the antioxidants? (1.5 pts)
Answers
Free radicals are highly reactive molecules or atoms that have unpaired electrons in their outer shells.
Negative health consequences of a high amount of free radicals in the system include, Oxidative Stress, Inflammation, Cellular Damage.
Antioxidants are substances that can neutralize or counteract the damaging effects of free radicals.
Free radicals are highly reactive molecules or atoms that have unpaired electrons in their outer shells. They are formed as natural byproducts of various biological processes in the body, such as metabolism, immune response, and environmental factors like pollution, radiation, or smoking. Free radicals are unstable and seek to stabilize themselves by oxidizing other molecules in the body, leading to a chain reaction of damage to cells, proteins, and DNA.
Negative health consequences of a high amount of free radicals in the system include:
Oxidative Stress: Excessive free radicals can cause oxidative stress, which is an imbalance between the production of free radicals and the body's antioxidant defenses. This can result in damage to cellular components and contribute to the development of chronic diseases, including cancer, cardiovascular diseases, neurodegenerative disorders, and aging.
Inflammation: Free radicals can trigger and perpetuate inflammation in the body. Chronic inflammation is associated with various health conditions, including arthritis, asthma, diabetes, and autoimmune disorders.
Cellular Damage: Free radicals can damage cell membranes, proteins, and DNA, leading to mutations, cell dysfunction, and impaired cellular processes. This can disrupt normal cell function and contribute to the development of diseases.
Antioxidants are substances that can neutralize or counteract the damaging effects of free radicals. They help inhibit or reduce the oxidation of other molecules by donating an electron to stabilize the free radicals without becoming free radicals themselves. Antioxidants can be naturally occurring compounds found in fruits, vegetables, whole grains, nuts, and seeds, as well as synthetic substances. Some common antioxidants include vitamins C and E, beta-carotene, selenium, and various phytochemicals. Consuming a diet rich in antioxidants or supplementing with antioxidants can help protect against oxidative stress and mitigate the negative health consequences associated with high levels of free radicals.
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Give an example of a non-biological chemical reaction that involves carbon. Name the process that converts a solid compound into a gas.
Answers
Answer:
The process that converts a solid mcompound into a gas is sublimation.
E.g- dry ice, solid iodine and ammonium salts
when the above solid are heated, only particles which are found on the surface of the solid gain enough energy and break all forces of attraction and form a gas.
Explanation:
plssss no fake answers no pdf no files pls jus the answer if you dont know it just dont put nothing but pls if you do know it help me out i have till 9 am today
Answers
For the second part the two main types of bonds are ionic and covalent. Ionic bonds involve the transfer of electrons and covalent bonds involve the sharing of electrons. (I’m 100% on this one)
1. The electronic configuration of chlorine is
1. 2,7
II. 2,8,8,7
III. 2,8,7
IV. 2,7,8
Answers
Answer:
Chlorine has atomic number 17. Its electronic configuration is 2, 8, 7. It is the second-lightest of the halogens, it appears between fluorine and bromine in the periodic table.
Answer:
III
Explanation:
From the periodic table, Chlorine(Cl) has 17 protons.
And when arranging the proton of elements each shell has a number protons it can take, i.e
2,8,8,8..........
The first shell can only take a maximum of 2 protons while the second shell upwards takes a maximum of 8 protons
Now we want to arrange Chlorine;
1st shell = 2
2nd shell = 8
2 + 8 = 10
17(no. of Chlorine protons) - 10
= 7
therefore,
3rd shell = 7
Therefore,
The electronic configuration of chlorine is
2,8,7
Analysis:
1. List the 5 metals (copper, iron, magnesium, lead, silver) in order of ease of reduction (most easily
reduced first, least easily reduced last)
Answers
Answer:
Magnesium
Iron
Copper
Lead
Silver
Explanation:
What is GMOs? ( Thanks btw )
Answers
Answer:
living organisms whose genetic material has been artificially manipulated in a laboratory through genetic engineering
Explanation:
lonic Bonding
Why did it require two sodium atoms to Complete
the Na 0 formula unit?
Na has +2 charge and O has -1 charge.
Na has +1 charge and O has -2 charge
Na has -2 charge and O has +1 charge.
Answers
5) To check the accuracy of our results we will compare our results to the label on the vinegar bottle. The bottle contains 4% vinegar. We will need to change our M results to %% in order to calculate a percent error.
Using the average M and the average volume (you have to change it to LITERS) of the acetic acid find the # of moles of acetic acid using the molarity formula from Table T.
Change moles to grams using the gfm of acetic acid (HC,H,O,).
Divide grams of acetic acid by the average volume (this time in ml.) of acetic acid and then multiply by 100. This is your experimental %.
Calculate the % error.
6. What other indicator could we have used?
7. What adjustment to our calculations would we have needed to make if we used barium hydroxide rather than sodium hydroxide? (It might be helpful to write the formula for barium hydroxide
Answers
5) Convert molarity to percent, calculate moles of acetic acid, convert moles to grams, divide grams by volume in mL, multiply by 100 to obtain experimental percent, and calculate percent error.
6) Phenolphthalein could have been used as an alternative indicator.
7) When using barium hydroxide instead of sodium hydroxide, adjust the calculations by considering the stoichiometry of the reaction and using a molar ratio of 2:1 between acetic acid and barium hydroxide.
5. To calculate the percent error in the concentration of acetic acid, we need to convert our molarity (M) results to percent (%). Using the average molarity and the average volume (converted to liters) of acetic acid, we can calculate the number of moles of acetic acid.
Then, by converting moles to grams using the molar mass of acetic acid (CH3COOH), we can divide the grams of acetic acid by the average volume (in milliliters) of acetic acid and multiply by 100 to obtain the experimental percent.
Finally, we can calculate the percent error by comparing the experimental percent to the labeled percent (4% vinegar on the bottle).
6. An alternative indicator that could have been used is phenolphthalein. Phenolphthalein is commonly used in acid-base titrations and changes color in a specific pH range, indicating the endpoint of the reaction.
6. If barium hydroxide (Ba(OH)2) were used instead of sodium hydroxide (NaOH), the adjustment in calculations would involve the stoichiometry of the reaction. The balanced chemical equation for the reaction between acetic acid and barium hydroxide is:
2CH3COOH + Ba(OH)2 → Ba(CH3COO)2 + 2H2O
The molar ratio between acetic acid and barium hydroxide is 2:1. Therefore, the number of moles of barium hydroxide used would be half the number of moles of acetic acid in the calculation.
The rest of the procedure, including converting moles to grams and calculating the percent, would remain the same.
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What is CO2 used for in industry?
Answers
As an example of how CO2 is utilized in industry, it is employed as an inert gas in welders and flame extinguishers, as just a pressurizing gas for air cannons and oil recovery, as a supercritical solvent in coffee decaffeination and supercritical drying.
What is the purpose of CO2?Chemical intermediaries, such as methanol, syngas, & formic acid, can be produced from CO2 using a variety of catalysts. These molecules subsequently act as feedstocks in those other industrial processes.Additionally, CO2 can be converted by catalysts to polymers, which serve as building blocks for plastics, adhesives, & medications.
What is the industrial usage of carbon?The creation of ethanol, fertilizer, natural gas processing, hydrogen synthesis in refineries, and, most recently, coal-fired power generation are among the industrial processes where large-scale carbon capture has been shown and is currently in use.
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I NEED HELP ASAP FOR ALL OF #13
Answers
When a solid is heated, its surface area expands due to a type of thermal expansion known as superficial expansion.
What do you meant by matter ?zero percent lowest possible temperature, around - 273 Celsiusthe melting point temperature at which a substance transforms from solid to liquid or from a liquid to a gas Direct transition of a substance from a solid to a gasthe Fahrenheit temperature scale. Water boils at 212 degrees Fahrenheit and freezes at 32 degreesMolecules a collection of two or more atoms held together by chemical bondsElements are pure compounds that cannot be transformed into simpler substances by conventional chemical processes.homogeneous mixtureCelsius liquid CatenationDepositionmatterAn element is a pure substance that cannot be divided into smaller elements using physical or chemical methods.Atomic compound mixturescombination heterogeneousA reliablesuperficial expansionBoiling point intermolecular forcesTo learn more about matter refer to :
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Which type of reaction does this diagram represent?
Answers
Answer:
Nuclear fission
Explanation:
Because the little particles are being spread out and the two elements are broken apart
Which of the following reactions corresponds to the thermochemical equation for the standard molar enthalpy of formation of solid zinc nitrate? Zn? "(aq) 2NO; (aq) Zn(NO3)z(s) b) Zn(s) 2N(g) 6O(g) Zn(NO3)z(s) Zn(OH)z(s) 2HNO3(aq) Zn(NO3)z(s) 2Hz0(€) Zn(s) Nz(g) 30-(g) Zn(NO3)z(s) Zn(s) 2HNO;(aq) Zn(NOg)z(s) Hz(g)
Answers
The correct answer for the thermochemical equation for the standard molar enthalpy of formation of solid zinc nitrate is option b) Zn(s) + 2N(g) + 6O(g) → Zn(NO3)2(s).
This equation represents the formation of one mole of solid zinc nitrate from its constituent elements in their standard states, with all reactants and products in their standard states and under standard conditions (25°C and 1 atm pressure).
To determine the standard molar enthalpy of formation of a compound, we need to measure the enthalpy change that occurs when one mole of the compound is formed from its elements in their standard states. In this case, we need to measure the enthalpy change for the reaction Zn(s) + 2N(g) + 6O(g) → Zn(NO3)2(s), which corresponds to the formation of one mole of solid zinc nitrate from its elements in their standard states.
This reaction can be measured experimentally using calorimetry, which involves measuring the heat released or absorbed during the reaction. The enthalpy change for this reaction is then divided by the number of moles of zinc nitrate formed to obtain the standard molar enthalpy of formation of solid zinc nitrate.
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Compare and contrast nuetrons,protons, and electrons
Answers
which of the following salts will be substantially more soluble in acidic solutions than in pure water: (a) znco3 (b) zns (c) bii3 (d) agcn (e) ba3(po4)2
Answers
In an acidic solution, ZnCO₃ will be more soluble than in pure water.The anion is effectively removed from solution by the formation of the weak acid.
Option A is correct .
The clarification depends on Le Chatelier's standard. Because the formation of the weak acid will shift the equilibrium to the left, the salt should be more soluble in acid if the anion is from a weak acid. The anion is effectively removed from solution by the formation of the weak acid, which does not dissociate, thereby increasing the salt's solubility.
In an acidic solution, which is more soluble?
Deionized water will not dissolve weakly basic salts as well as an acidic solution will. One can make a salt that is feebly fundamental by blending a powerless corrosive in with a solid base. NaCOOH, for instance, is a salt with a low basicity.
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What is the maximum mass, in grams, of NH3 that can be produced by the reaction of 1. 0 g of N2 and 1. 0 g of H2 using the reaction below? N2 H2→NH3 (not balanced).
Answers
N2 + 3H2 → 2NH3
Now, let's calculate the maximum mass of NH3 that can be produced using the given masses of N2 and H2.
Molar mass of N2 = 28.02 g/mol
Molar mass of H2 = 2.02 g/mol
Molar mass of NH3 = 17.03 g/mol
To find the limiting reactant, we need to compare the number of moles of N2 and H2. We'll use the molar masses to convert the given masses into moles:
Moles of N2 = 1.0 g / 28.02 g/mol ≈ 0.036 mol
Moles of H2 = 1.0 g / 2.02 g/mol ≈ 0.495 mol
According to the balanced equation, the stoichiometric ratio between N2 and NH3 is 1:2. This means that 1 mole of N2 will produce 2 moles of NH3.
Since the ratio between N2 and H2 is 1:3, we need 3 moles of H2 for every 1 mole of N2. Therefore, the maximum moles of NH3 that can be produced will be twice the number of moles of N2:
Maximum moles of NH3 = 2 × moles of N2 ≈ 2 × 0.036 mol = 0.072 mol
Finally, we can calculate the maximum mass of NH3 using the molar mass of NH3:
Maximum mass of NH3 = Maximum moles of NH3 × Molar mass of NH3
= 0.072 mol × 17.03 g/mol
≈ 1.2276 g
Therefore, the maximum mass of NH3 that can be produced is approximately 1.2276 grams.
How would increasing the magnitude of the charges on two charged particles and decreasing the distance between the particles affect the strength of the electric force between the particles?
Type your answer here:
How can iron fillings provide evidence that can be used to explain how two magnets exert forces on each other even though the magnets are not in contact with each other?
Type your answer here:
Answers
(a) Increasing the magnitude of the charges on two charged particles and decreasing the distance between the particles increases the strength of the electric force between the particles.
(b) Iron filings can provide evidence that can be used to explain how two magnets exert forces on each other because each of the magnet can attract the iron filings.
Force between two particles
The electrostatic force between two particles is determined from Coulomb's law as shown below;
F = kq₁q₂/r²
where;
q₁ is magnitude of the first chargeq₂ is magnitude of the second charger is the distance between the two chargesThus, from the equation above, increasing the magnitude of the charges on two charged particles and decreasing the distance between the particles increases the strength of the electric force between the particles.
Force between two magnets by iron filingsIron filings can provide evidence that can be used to explain how two magnets exert forces on each other because each of the magnet can attract the iron filings.
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Answer:
unit quiz k12
Explanation:
Iron filings can provide evidence that can be used to explain how two magnets exert forces on each other because each of the magnets can attract iron filings. Another thing is that the patterns of the iron fillings show lines of force that make the magnet's magnetic field. For example, when a magnet is placed in a container and you place iron fillings over the lid it makes a pattern showing the lines of forces making the magnetic field
The atomic mass of iron is 55.85, and oxygen is 16.0. What is the mass of 6.02 × 1023 molecules of Fe2O3?
Answers
Answer:159.7grams
Explanation:
(55.85)2+(16)3
159.7grams
Answer:
The correct answer for plato/edmentum is C (159.7g)
Which three terms name a domain of life
Answers
Answer:
Bacteria, Archaea and Eukarya are the three domains of life.
Based on the following electronegativity values, which of the following best explains the polarity of the bond formed?
Element
Electronegativity
Carbon 2.5
Fluorine 4.0
Lithium 1.0
Question 1 options:
Li-F is covalent because the electronegativity difference is 5.0
C-F is ionic because the electronegativity difference is 1.5
Li-F is ionic because the electronegativity difference is 3.0
C-F is covalent because the electronegativity difference is 6.5
Answers
Answer:
see the pic for the answer
what is a mixture of elements and compounds
Answers
The substance in the image above would be classified as a mixture of elements (option E).
What is a compound and mixture?A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.
On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.
According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.
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describe the arrangement and movement of the octane molecules when it is a liquid
Answers
Answer:
Particles in a liquid move randomly and can slide past each other but they don't move far away from each other. Particles in liquids are close together, rolling over each other and arranged randomly. Particles in a solid vibrate in all directions but cannot move out of their fixed positions.
Explanation:
yuh
(c) Graphite is another naturally-occurring form of carbon.
Graphite can be used in pencils because it is soft and can leave marks on paper.
Graphite can also be used as a conductor of electricity.
Explain why graphite is soft and conducts electricity.
Refer to structure and bonding in your answer.
(5)
DO NOT WRITE IN THIS AREA
Answers
Graphite is a fantastic lubricant and a powerful electrical conductor because of these unbound electrons.
What is the purpose of Unbound?Unbound can serve as a caching server, it can also perform recursion, store records obtained from other DNS servers, and provide an authoritative service, such as if you only have a few zones.
As a result, it can act as a "glue" server or host a small zone with only a few domains, making it ideal for a lab.
Why need to utilize Unbound DNS?
With its harden-glue, access control, maximum randomization for request ID and ports, response scrubbing, case preservation, plus Denial of Service or DoS prevention capabilities, Unbound is feature-rich with DNS Security. These are only a few.
Therefore, graphite is a fantastic lubricant and a powerful electrical conductor because of these unbound electrons.
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Why is corn considered a material resource and an energy resource?
Answers
Answer:
This is because Corn is grown on land and has important values to man .These values include as a source of food for man and animals. It is also used as raw materials for the production of certain goods such as flour etc.
It is an energy resource because fermentation of corn gives rise to ethanol fuel which is used as a source of power to run machines and other equipment.
Match the term to its definition.Nonpolar2Composed of two atomsMetallic?A bond with a negativeend and a positive endPolar?A bond in which neitheratom takes more than itsshare of electronsElectronegativity?A type of bond that allowsvalence electrons to movefreely among ionsDiatomic?Determines what type ofbond will form
Answers
Non polar: A bon in which neither atom takes more than its share of electrons
Metallic : A type of bond that allows valence electrons to move freely among its ions
Polar: A bond with a negative end and a positive end
Electronegativity: Determines what type of bond will form
Diatomic: Composed of two atoms
The density of manganese is 7.21 g/cm^3 . What is the density in kg/m^3 ? (dimensional analysis)
Answers
Answer:
7.21 x 103 kg/m3
Explanation:
Dimensional analysis has been the process to establish and convert the various units in the measurement. The density of manganese in kg/m3 is 7.21 × 10³ kg/m³.
What is dimensional analysis?Dimensional analysis has been the method that is also referred to as the unit factor or factor label method. It solves the mathematical expressions by multiplying the given value with another without changing its quantity and amount. It is used to change the units of the value.
Given,
Density of manganese = 7.21 g/cm³
The dimensional analysis method is used to convert grams per cubic centimeter into kilograms per cubic meter as:
1 gram / cubic centimeter = 1000 kilogram / cubic meter
So, 7.21 g/cm³ = X kilogram / cubic centimeter
Solving for X as:
X = 7.21 g/cm³ × 1000 kilogram / cubic centimeter
X = 7.21 × 10³ kg/m³
Therefore, 7.21 × 10³ kg/m³ is the density.
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What happens if the solvent solute attraction is greater than the salute solute attraction when to substances are mixed
Answers
Answer:
What happens if the solvent-solute attraction is greater than the solute-solute attraction when two substances are mixed? The solute particles are pulled apart and dispersed throughout the particles of the solvent, which holds the particles of the solute in solution.
Explanation:
If the solvent-solute attraction is greater than the solute-solute attraction then dissolution, solubility, and stability of the solution.
Dissolution: The solute's particles will separate and distribute throughout the solvent during dissolution. This process is called dissolution. The solute-solvent interactions are broken and replaced by new solute-solvent attractions as the solvent molecules around the solute particles.
Solubility: The greatest quantity of a solute that may dissolve in a given amount of solvent at a certain temperature is known as its solubility. The solute has a better probability of dissolving in the solvent when the solvent-solute attraction is stronger than the solute-solute attraction. This implies that the solute will become more soluble in the solvent.
Solution Stability: A solution has a greater tendency to remain stable when the solvent-solute attraction is stronger. A homogenous mixture is produced by the solute particles remaining scattered throughout the solvent.
Thus, the solute particles will dissolve in the solvent, increasing solubility and generating a stable solution, when the solvent-solute attraction is stronger than the solute-solute attraction.
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A sample of a compound has a total mass of 200.0 g. Phosphorus comprises87.28 g of the sample while oxygen comprises 112.72 g.a. Find the percent mass of phosphorus and oxygen in the sample.
Answers
To find the mass percent composition of an element, divide the mass contribution of the element by the total mass then multiply by 100.
The total mass = 200.0 g
Phosphorus mass = 87.28 g
Oxygen mass = 112.72 g
%composition of P:
=> (87.28 g/200.0g)*100
=> 43.64 %
%composition of O:
=> (112.72g/200.0 g)*100
=> 56.36 %