Answers
a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Compound:A compound is a material formed by chemically bonding two or more chemical elements. The type of bond keeping elements in a compound together may vary: covalent bonds and ionic bonds are two common types. The elements are always present in fixed ratios in any compound.
Element:Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.
Mixture:is a material made up of two or more different substances which are physically combined.
Chemical Formula:A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element. I
Pure substance:A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen.
hope this help!
Answer:
Here are the definitions of all of them.
Explanation:
Molecule:
a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Compound:
A compound is a material formed by chemically bonding two or more chemical elements. The type of bond keeping elements in a compound together may vary: covalent bonds and ionic bonds are two common types. The elements are always present in fixed ratios in any compound.
Element:
Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.
Mixture:
is a material made up of two or more different substances which are physically combined.
Chemical Formula:
A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element. I
Pure substance:
A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen.
Related Questions
A student sets up the following equation...
Answers
Answer:
The answer to your question is given below
Explanation:
From the question given above, the following data were obtained:
Concentration (g/mL) = 0.04 g/mL
Concentration (g/L) =?
We can convert g/mL to g/L by doing the following:
1 g/mL = 1000 g/L
Therefore,
0.04 g/mL = 0.04 g/mL × 1000 g/L / 1 g/mL
0.04 g/mL = 40 g/L
0.04 g/mL is equivalent to 40 g/L.
Thus, the concentration (g/L) is 40 g/L
A solid is dissolved in a liquid, and over time a solid forms again. How can
you confirm the type of change that took place?
A. Testing the new solid to show that its properties are the same as
the starting solid would confirm that a physical change took
place.
B. The solid dissolving in a liquid is confirmation that a chemical
change took place.
C. The solid forming from the liquid is confirmation that a physical
change took place.
D. Showing that the total mass of the solid and liquid changed would
confirm that a chemical change took place.
Answers
Please help..... :(((
The last part says group 2 if you’re wondering
Answers
Use Newton’s 3rdLaw to describe our scenario. Describe the initial action, reaction and relate it to Newton’s 3rdLaw. Be sureto explain which part is action, reaction and how the forceswere exerted
Answers
Answer:it is in the first sentence
Explanation:i did this and got it correct
What is the percent yield for the reaction below when
705.0 g SO2 and 80.0 g 02 produce 586.0 g S03?
2802(g) + O2(g) → 2503(9)
Answers
Answer:
Percent yield of reaction is 150%.
Explanation:
Given data:
Percent yield = ?
Actual yield of SO₃ = 586.0 g
Mass of SO₂ = 705.0 g
Mass of O₂ = 80.0 g
Solution:
Chemical equation:
2SO₂ + O₂ → 2SO₃
Number of moles of SO₂:
Number of moles = mass/ molar mass
Number of moles = 586.0 g/ 64.1 g/mol
Number of moles = 9.1 mol
Number of moles of O₂:
Number of moles = mass/ molar mass
Number of moles = 80.0 g/ 32g/mol
Number of moles = 2.5 mol
Now we will compare the mole of SO₃ with O₂ and SO₂.
SO₂ : SO₃
2 : 2
9.1 : 9.1
O₂ : SO₃
1 : 2
2.5 : 2×2.5 = 5
The number of moles of SO₃ produced by oxygen are less it will limiting reactant.
Theoretical yield of SO₃:
Mass = number of moles × molar mass
Mass = 5 mol × 80.1 g/mol
Mass = 400.5 g
Percent yield of reaction:
Percent yield = actual yield / theoretical yield × 100
Percent yield = 586.0 g/ 400.5 g× 100
Percent yield = 1.5× 100
Percent yield = 150%
Many of these prefixes you see everyday in different applications. A good example is
computer memory. You probably have hard drives at home with gigabytes or terabytes
of storage memory. A single byte consists of 8 bits. How many bits are contained in 1
terabyte of storage.
O 8x1012
1x1012
O8x109
O 1x10-12
Answers
Answer: 8 x 10^12
Explanation:
The prefix tera means 10^12. Each byte is 8 bits, so a terabyte is 8 x 10^12 bits.
In 1 Terbyte of storage there are \(8\times 10^{12}\).
Explanation:
In in terabyte there are 1000 gigabytes1 Terabyte = 1000 Gigabyte
In megabyte there are 1000 megabytes:1 Gigabyte= 1000 Megabytes
In in megabyte there are 1000 kilobytes1 Megabytes= 1000 Kilobyte
In kilobyte there are 1000 megabytes:1 Kilobyte = 1000 Bytes
Given:
A single byte consists of 8 bits
To find:
The number of bits in 1 Terabyte of storage.
Solution:
1 Byte = 8 bits
So, in Bytes in 1 Terabyte:
\(1 terabytes= 1000\times 1000\times 1000\times 1000 Bytes=10^{12} Bytes\)
Now number of bits in \(10^{12}\) bytes:
\(1Byte=8bits\\10^{12} Bytes=10^{12}\times 8 bits=8\times 10^{12} bits\)
In 1 Terabyte of storage there are \(8\times 10^{12}\) bits.
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Scientists find a new mid-ocean ridge forming along an underwater
mountain range. What can scientists assume based on this finding?
Ridge
O a. The plates are converging in this area.
O b. Crust is being pushed back down to the mantle here.
O c. New ocean floors have stopped being produced at the ridge.
Od. The crust near the ridge is newer than the crust farther from the ridge.
*
Answers
The new mid-ocean ridge shows that the crust near the ridge is newer than the crust farther from the ridge. Therefore, option (d) is correct.
What is a mid-ocean ridge?A mid-ocean ridge can be described as a seafloor mountain system formed by plate tectonics. It has a depth of about 2,600m and rises about 2,000 m above the deepest part of an ocean basin. Seafloor spreading occurs along a divergent plate boundary.
The rate of seafloor spreading calculates the morphology of the crest and its width in an ocean basin. The production of new seafloor results from the mantle in response to plate separation.
Mid-ocean ridges can be linked by plate tectonic boundaries and the trace of the ridges across the ocean floor appears to be the seam of a baseball. The mid-ocean ridge system can be defined as the longest mountain range on Earth, reaching about 65,000 km.
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Refer to the Periodic Table of Elements. Which of these elements has atoms with the largest atomic radii?
gallium (Ga)
selenium (Se)
germanium (Ge)
arsenic (AS)
Answers
HQ5.40
Homework Answered Due Today, 11:59 PM
The reaction 3H₂(g) + N₂(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 1 g of hydrogen and 2 g of nitrogen are
reacted, how much heat is produced (kJ)?
Answers
The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ
How do i determine the heat energy produced?First, we shall obtain the limiting reactant. Details below:
3H₂ + N₂ -> 2NH₃
Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 g Molar mass of H₂ = 2 g/molMass of H₂ from the balanced equation = 3 × 2 = 6 gFrom the balanced equation above,
28 g of N₂ reacted with 6 g of H₂
Therefore,
2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂
We can see that only 0.43 g of H₂ is needed in the reaction.
Thus, the limiting reactant is N₂
Finally, we the amount of heat energy produced. Details below:
3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ
Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 gFrom the balanced equation above,
When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.
Therefore,
When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ
Thus the heat energy produced from the reaction is -6.61 KJ
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How many electrons are shown in the following electron
configuration: 1s22s22p63s 23p64s23d104p65s24d105p66s2 ?
Express your answer numerically as an integer.
Answers
Answer:
1s22s22p6
Explanation:
Neon is an element in the periodic table and has an atomic number of 10, which means it has 10 protons in its nucleus and thus since the number of protons and electrons is the same then it has 10 electrons.
Therefore, it has 2 electrons in the first energy shell and 8 electrons in the second energy shell. To elaborate further, the first shell has a single s-sub shell that contains a single s-orbital that can hold two electrons. The second energy shell has a single s-sub-shell whose s-orbital will occupy 2 electrons, and also has a p-orbital which can hold 6 electrons, making the second shell to have 8 electrons.
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Question 6
1321 ✪
9 words
Consider the reaction 3X + 2Y→ 5C + 4D
How many moles of C can be synthesized from 33.0 moles of Y?
Round your answer to a whole number.
1 pts
Answers
Answer:
83
Explanation:
3X + 2Y → 5C + 4D
2 moles of Y will produce 5 moles of C
33.0 moles of Y will produce: 33.0 x 5/2 = 82.5 or 83 moles of C
Please Help! 100 points!!!!!
In Parts I and II of the lab, what happened to the electrons of each element to produce the different colors of light? Explain your answers using important terms from the lesson and information provided in the laboratory.
Answers
Answer:
In Parts I and II of the lab, what happened to the electrons of each element to produce the different colors of light? ... When heat was added to the elements, the electrons absorbs the energy and moves to its excited state. Once the electron starts to fall back to a lower orbit, it emits energy in the form of light.
Happy to help ☀️Keep on shining☀️
Explanation:
During a volcanic eruption, lava flowed at a rate of 37 m/min. At this rate how far in kilometers
can lava travel in 45 minutes?
Answers
In the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor. hydrogen+oxygen⟶water
If you burn 46.2g of hydrogen and produce 413g of water, how much oxygen reacted?
mass of oxygen:
Answers
Answer:
ok, here is your answer
Explanation:
AI-generated answer
To find the mass of oxygen that reacted, we need to use the Law of Conservation of Mass, which states that in a chemical reaction, the mass of the reactants equals the mass of the products.
First, we need to find the number of moles of hydrogen that reacted:
Molar mass of hydrogen (H₂) = 2.016 g/mol
Number of moles of H₂ = mass/molar mass = 46.2 g/2.016 g/mol = 22.92 mol
Next, we need to use the balanced chemical equation to find the number of moles of water produced:
hydrogen + oxygen → water
2H₂ + O₂ → 2H₂O
From the equation, we can see that for every 2 moles of H₂, 1 mole of O₂ is required to produce 2 moles of H₂O. Therefore, the number of moles of O₂ required to produce 22.92 moles of H₂O is:
Number of moles of O₂ = 1/2 x 22.92 mol = 11.46 mol
Finally, we can find the mass of oxygen that reacted by using its molar mass:
Molar mass of oxygen (O₂) = 32.00 g/mol
Mass of oxygen = number of moles x molar mass = 11.46 mol x 32.00 g/mol = 366.72 g
Therefore, the mass of oxygen that reacted is 366.72 g.
mark me as brainliestHow many grams of sulfur dioxide will exert a pressure of 0.705 atm in a 2.50L tank at 0 °C?
Answers
The mass of sulfur dioxide required is approximately 6.36 grams.
To determine the number of grams of sulfur dioxide (SO2) required to exert a pressure of 0.705 atm in a 2.50L tank at 0 °C, we can use the ideal gas law equation: PV = nRT.
First, we need to convert the temperature from Celsius to Kelvin by adding 273.15, so the temperature becomes 273.15 K. The ideal gas constant (R) is 0.0821 L·atm/(mol·K).Rearranging the ideal gas law equation to solve for the number of moles (n), we get n = PV / RT.
Plugging in the given values, n = (0.705 atm) * (2.50 L) / [(0.0821 L·atm/(mol·K)) * (273.15 K)]. Calculating this expression, we find that n is approximately 0.0993 moles.The molar mass of sulfur dioxide is 64.06 g/mol (32.06 g/mol for sulfur + 2 * 16.00 g/mol for oxygen).
Finally, we can calculate the mass of sulfur dioxide using the formula: mass = n * molar mass = 0.0993 moles * 64.06 g/mol. Thus, the mass of sulfur dioxide required is approximately 6.36 grams.
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A gas is at 35.0°C and 4.50 L. What is the temperature of the gas if the volume is increased to 9.00 L?
A gas is at 35.0°C and 4.50 L. What is the temperature of the gas if the volume is increased to 9.00 L?
65.0°C
343°C
17.5°C
1.16°C
614°C
Answers
Answer: 343 Celsius
Explanation:
Gay lussac law
T2=T1V2/V1 Temp must be in Kelvin
T2= 308.15 X 9.00 / 4.50 =616.30 K - 273.15 to get back in celsius
=343.15 C
Which element has chemical properties that are most similar to potassium?
Answers
Answer:
(Li) Lithium
Explanation:
(Li) lithium and K potassium both belong to first group (alkali metals) and thus have similar chemical properties.
cesium, if it's that multiple-choice question with calcium nitrogen and sulfur as the other options
The Earth's asthenosphere is a structural layer
A.
that is made of the crust and the uppermost part of the mantle.
B.
that is contained completely within the crust.
C.
that is contained completely within the upper mantle.
D.
that is made of the mantle and the uppermost part of the crust.
Answers
Answer:
Dont completly trust me here but i think its a but id try and wait for someone else just be careful
Explanation:
How many neutrons are in an atom of argon–40?
Answers
Answer:
22 neutrons
Explanation:
If so please sorry
What element does “X” represent in Figure 1?
Helium
Krypton
Neon
Argon
Answers
Answer:
Argon
Explanation:
It's atomic number is 18
hope that's it
what is the name of p214
Answers
diphosphorus tetraiodide is the name of the p2I4 compound.
What is the name of p2I4?The name of p2I4 is diphosphorus tetraiodide because there are two atoms with phosphorus and four atoms with iodine. We know that 'di' word is used for two while on the other hand, tetra word is used for four.
So we can conclude that diphosphorus tetraiodide is the name of the p2I4 compound.
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What else affects how you will grow and develop
Answers
There are many factors that determine how a person can grow and develop, such as environmental factors, nutrition, genetics, and a good upbringing for better mental and physical development.
What factors contribute to a person's development?Many factors are required for a person's proper development, both mentally and physically, such as a child's upbringing, which helps a person make the right decisions in life, and nutrition and good genetics, which make a person physically strong.
Hence, there are many factors that determine how a person can grow and develop, such as environmental factors, nutrition, genetics, and a good upbringing for better mental and physical development.
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identify the kind(s) of intermolecular forces that would occur between the solute and solvent in an isopropyl alcohol (which is polar and contains an oh o h group) solution.
Answers
Isopropyl alcohol (C3H8O) is a polar molecule due to the presence of an OH group. The types of intermolecular forces that would occur between the solute (isopropyl alcohol) and the solvent depend on the nature of the solvent. In general, polar solutes dissolve in polar solvents, and the intermolecular forces that occur are:
Hydrogen bonding: Isopropyl alcohol can form hydrogen bonds with other polar molecules, including water or other alcohols. Hydrogen bonds occur between the hydrogen atom of the OH group in isopropyl alcohol and the lone pair of electrons on the oxygen atom of the other molecule.
Dipole-dipole interactions: Isopropyl alcohol can also experience dipole-dipole interactions with other polar molecules. Dipole-dipole interactions occur when the positive end of one polar molecule is attracted to the negative end of another polar molecule due to their partial charges.
In summary, the intermolecular forces that would occur between isopropyl alcohol and a polar solvent, such as water or another alcohol, are hydrogen bonding and dipole-dipole interactions.
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What is a pinhole camera? Discuss the characteristics of the image formed in a pinhole camera.
Answers
Explanation:
A pinhole camera, as name suggests, is a camera has no lens. is a light- proof box,small hole on 1 side, light thru one side. projects an inverted pic which is known as an abscura effect....
When naming ionic compounds does the roman numeral after the metal cation tell you how many anions will be there?
Answers
Answer:
no
Explanation:
the roman numeral tells you that the metal is a transition metals. transition metals have more than one oxidation state.
How to prepare a solution with a concentration of 100 μg/mL?
Answers
Answer:
Take 1ml of the stock solution (covert(100ug/ml) and add 9mls of water to produce a100ug/10ml solution.
Explanation:
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
NO(g) and O2 (9) react to form NO2(9). The rate law of the reaction is rate = k[NO]° [02]. If the reaction occurs in a single elementary step that is a three-body molecular collision, then which of the following is the equation for the elementary step?
Answers
Answer:
B, 2NO + O2 --> 2NO2
Explanation:
The exponents in the rate law for an elementary step are equal to the stoichiometric coefficients of the particles in the equation for the elementary step. Therefore, the elementary reaction must be between two NO molecules and one O2 molecule.
The elementary reaction of the three-body molecular collision is 2NO + O2 -----> 2NO2
The rate of reaction refers to how fast or slow a reaction occurs. The rate equation for an elementary reaction involves the concentration of the species raised to the power of their respective molar coefficients.
We are told that the rate law of the reaction is given as; Rate = k[NO]^2 [O2]. This implies that the single elementary step that is a three-body molecular collision, is represented by the equation; 2NO + O2 -----> 2NO2.
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![NO(g) and O2 (9) react to form NO2(9). The rate law of the reaction is rate = k[NO] [02]. If the reaction](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/Cbonog2pooXAGFawkH4F01A8XrtO7qnk.png)
P4 + 5O2 → 2P2O5
How many grams of P2O5 would be produced with 2 moles of P4 used?
________ g P2O5
Answers
The answer is 567.76 grams.
We used the balanced equation for the reaction of P4 + 5O2 → 2P2O5. This equation tells us that for every 1 mole of P4 that reacts, 2 moles of P2O5 are produced.
Therefore, if we start with 2 moles of P4, we would end up with 4 moles of P2O5. To find the mass of 4 moles of P2O5, we can use the molar mass of P2O5 which is 141.94 g/mol.
To find the mass, we multiply the number of moles by the molar mass, so 4 moles * 141.94 g/mol = 567.76 grams.
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Calculate the molarity of 32.5 g of MgS in 935 mL of solution.
Answers
You convert 841 mL of solution to 0.841 L
You convert 32.1g of MgS to mol by dividing by molar mass of MgS (which is 56.4g)
18. What is one of the three things that cause the surface currents of the oceans?
A.differences in salinity
B.temperature differences
C. density differences
D. Coriolis effect
Answers
Answer:
b. temperature difference