1. Unlike molecular attractions, chemical bonds
A.)do not involve electric charges.
B.)are much stronger.
C.)are always present and stable between molecules.
D.)cannot be broken, whereas interactions can.
Answers
Related Questions
What is the overall reduction potential for the reaction Agt (aq) + Cu(s)——>Ag(s) + Cu2+ (aq)?
-0.46 V
+0.46 V
+0.57 v
+1.14V
Answers
Answer:
it should be +0.46 :)
Explanation:
I just took the test and got it right.
Answer:
I think it's +1.14 V, but don't take my word for it..
The abundance of 3 isotopes of magnesium of mass numbers 24,25 and 26 are 78.6%, 10.1%, and 11.3% respectively. What is the relative atomic mass of magnesium?
Answers
24 x 0.790 = 19.0 amu
25 x 0.100 = 2.50 amu
26 x 0.110 = 2.86 amu
(Because of the 19.0, the sig figs go only to the 1/10 decimal place)
19.0 + 2.5 + 2.9 = 24.4 amu or g/mole
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How were daltons ideas about the atom recieved by the scientific community
Answers
John Dalton's ideas about the atomic theory was recieved by the scientific community because it helped to understand atomic concept through the law of conservation of mass and other laws of chemical combination.
In his explanation, he made is understand that the law of conservation of matter which states that matter can neither be be created nor destroyed during chemical reaction but changes from one form to another. This implies that atoms change from one state of matter to another.
What is an atom?An atom is the smallest particle of an element which can take part in a chemical reaction. John Dalton's explains that all matter is made up of indivisible entities called atoms.
So therefore, John Dalton's ideas about the atom theory was recieved by the scientific community as it helps us understand atomic concept through the law of conservation of mass and other laws of chemical combination
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Scientists notice that many fish are dying in a local lake. Which onsite water quality data would they most likely gather to determine the cause of the fish kill?
A. arsenic and cyanide levels
B.water level and surface area
C.biodiversity and water depth
D. dissolved oxygen and temperature
Answers
Answer:
D. (Dissolved oxygen and temperature)
Explanation:
Have a nice day and stay safe <3
some molecules have more than four electron groups around a central atom, such as sf6. what is the likely arrangement of the six electron groups?
Answers
Some molecules have more than four electron groups around a central atom, such as SF₆, the likely arrangement of the six electron groups will be Octahedral
In chemistry, compounds containing six atoms or groups of atoms or ligands symmetrically grouped around a central atom; consist octahedral molecular geometry which is also known as square bipyramidal. The prefix octa refers to the octahedron, which has eight faces.
SF₆ also consists of six atoms making octahedral geometry. In SF₆ 4 atoms will place themselves in a plane, one atom places itself above the plane, and one places, itself below the plane, resulting in an octahedral geometry.
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I need help on this question asap!
You are in a lab and you use 11.50 g of Na(s) to react with Cl(g). Below is the reaction that happens from this.
Na + Cl2 → NaCl
Your percent yield is 95%. From this info what is the actual yield?
Answers
Answer:
27.79 g to the nearest hundredth.
Explanation:
2Na + Cl2 ---> 2NaCl
Using the molar masses , the theoretical yield is:
46 g of Na yields 46 + 35.5*2 g NaCl
46 g ---> 117 g NaCl so
11.5 g ----> 117 * 11.5 / 46 g NaCl
But, as the yield is 90%
the actual yield is 0.95 * 117 * 11.5 / 46
= 27.79 g.
what is the electron configuration of the atom K,V,Co,Zr
Answers
Answer:
The ground state electronic configuration of Neutral Zirconium atom is [Kr] 4d2 5s2.
Explanation:
To be honest I'm not exactly sure but here you go this is all I had sorry if its wrong.
How does molecular shake affect polarity?
Answers
Answer:
I believe its A
Explanation:
A molecule that has a symmetrical shape will be a nonpolar molecule.
TRUE or FALSE the term “anti-inflammatory” likely means “against inflammation”
Answers
Answer:
True
ANTI MEANS AGAINST
Explanation:
the SI unit for forces is it a newton, force, unbalanced forces, balanced forces, net forces pick on I need you help
Answers
Answer: The SI unit for force is Newtons (N).
Assuming a car (with a 70-L) gas tank can hold approximately 50,000 (5.00 * 10^4) g of octane(C8H18) or 50,000 (5.00 * 10^4) g of ethanol (C2H6O). How much carbon dioxide (CO2), in grams, is produced in one tank of gas from the combustion of each amount?
Answers
Answer:
- From octane: \(m_{CO_2}=1.54x10^5gCO_2\)
- From ethanol: \(m_{CO_2}=9.57x10^4gCO_2\)
Explanation:
Hello,
At first, for the combustion of octane, the following chemical reaction is carried out:
\(C_8H_{18}+\frac{25}{2} O_2\rightarrow 8CO_2+9H_2O\)
Thus, the produced mass of carbon dioxide is:
\(m_{CO_2}=5.00x10^4gC_8H_{18}*\frac{1molC_8H_{18}}{114gC_8H_{18}}*\frac{8molCO_2}{1molC_8H_{18}}*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=1.54x10^5gCO_2\)
Now, for ethanol:
\(C_2H_6O+3O_2\rightarrow 2CO_2+3H_2O\)
\(m_{CO_2}=5.00x10^4gC_2H_6O*\frac{1molC_2H_6O}{46gC_2H_6O}*\frac{2molCO_2}{1molC_2H_6O}*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=9.57x10^4gCO_2\)
Best regards.
which one of the following statements is false? group of answer choices water is the most important greenhouse gas. water plays the greatest role in the thermal regulation of the atmosphere the amount of energy absorbed when water evaporates is large due to its strong intermolecular forces. water molecules absorb energy when water vapor condenses to form clouds.
Answers
The correct statement is " water molecules absorb energy when water vapor condenses to form clouds".
Condensation, which is the opposite of vaporization, would be the transformation of matter from its gaseous state into its liquid state. The water cycle is the most frequent use of the phrase.
One such illustration is the condensation that accumulates on a chilly cup's exterior or on a car's windows on a cool night. Dew, vapor, clouds, and the fog that see it when you exhale on a chilly day are more characteristics of condensation.
Therefore, the correct answer will be option (D).
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The average temperature in the mountains is 65° in April. The average temperature in that same spot is −5° in December. Determine how much warmer this location is in April than in December, and determine which temperature is the farthest away from 0°.
65 + |−5| = 70°, 65° is the farthest from 0°
65 − |−5| = 60°, 65° is the farthest from 0°
65 + |−5| = 70°, −5° is the farthest from 0°
65 − |−5| = 60°, −5° is the farthest from 0°
Answers
Answer:
A 65 + |−5| = 70°, 65° is the farthest from 0°
Explanation:
Answer:
A
Explanation:
This question involves absolute value which makes negative positive
which is farther from 0, 5 or 65?
A baby has a mass of 4kg. What is it’s weight on earth
Answers
what special quality does the asthenosphere have that allows the crust to float on it and be moved around ?
Answers
Answer:
The tectonic plates do not slowly drift over time because they are floating on a layer of liquid rock. They drift because they are sitting on a layer of solid rock (the upper mantle or "asthenosphere") that is weak and ductile enough that it can flow very slowly under heat convection, somewhat like a liquid.
Explanation:
In Which Of The Following Compounds Does Nitrogen Have An Oxidation Number Of -3? Answer Choices N2O5 NH3 NO NO2
Answers
The compound in which nitrogen has an oxidation number of -3 is \(NH_3\) (ammonia).
In \(NH_3\) , the nitrogen atom has an oxidation number of -3. This is because each hydrogen atom in \(NH_3\) has an oxidation number of +1, and the sum of the oxidation numbers in a neutral molecule is zero.
Since ammonia is neutral, the total of the hydrogen atoms' oxidation numbers must balance out the overall charge, resulting in nitrogen having an oxidation number of -3.
Let's look at the other compounds listed:
\(N_2O_5\): In \(N_2O_5\), the oxygen atom is more electronegative thannitrogen.
Oxygen typically has an oxidation number of -2 in compounds, so if
we assume the oxidation number of oxygen as -2, the sum of the
oxidation numbers for nitrogen in \(N_2O_5\) would be +10 (since there
are five oxygen atoms).
The, nitrogen in \(N_2O_5\) does not have an oxidation number of -3.
NO: In NO (nitric oxide), the oxygen atom has an oxidation number of -2, which is its typical value.Since the molecule is neutral, the nitrogen atom must have an
oxidation number of +2 to balance out the overall charge.
The, nitrogen in NO does not have an oxidation number of -3.
\(NO_2\): In \(NO_2\) (nitrogen dioxide), the oxygen atoms each have anoxidation number of -2, following their usual oxidation state.
To balance out the overall charge of the molecule, the nitrogen
atom in\(NO_2\) has an oxidation number of +4.
The nitrogen in \(NO_2\) does not have an oxidation number of -3.
In summary, among the compounds listed, \(NH_3\) (ammonia) is the only one where nitrogen has an oxidation number of -3.
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List six properties of salts.
Answers
Heree some the properties of salts:
Soluble in water.In the molten state, salts can conduct the electricity.Hygroscopic.Salts can have different colors.Salts typically have a crystalline structure.Salts are generally denser than water.ExplanationSalts are typically soluble in polar solvents like water. This property is due to the ability of salts to form ionic bonds with water molecules through a process called hydration. Their solubility generally increases with temperature.In the molten (liquid) state, salts can conduct electricity because the ions are free to move and carry electric charge. Example:\(\sf NaCl \rightarrow Na^++Cl^-\)Some salts have the ability to absorb moisture from the air (hygroscopic), which can cause them to clump or dissolve, such as in desiccants.Salts can have different colors, depending on the identity of the ions present. Example:
NaCl = white.
CuSO₄ = blue.
FeCl₃ = yellow.Salts typically have a crystalline structure, which is due to the arrangement of ions in a regular, repeating pattern. The exact crystal structure of a salt depends on the size and charge of the ions, as well as the conditions under which the salt was formed.Here are some examples of the density of common salts at room temperature (25°C or 77°F):
Sodium chloride (table salt): 2.16 g/cm³.
Potassium chloride: 1.98 g/cm³.
Magnesium sulfate (Epsom salt): 1.68 g/cm³.
Besides, density of water: 1 g/cm³.
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https://brainly.com/question/13655717https://brainly.com/question/23463868https://brainly.com/question/13818836Which statement is true about the potential energy diagram for an exothermic reaction? (5 points)
Answers
Answer:
Products have less potential energy than reactants.
Explanation:
Let's remember the concept of an exothermic reaction: a chemical reaction or physical change is exothermic if heat is released by the system into the surroundings. Because the surroundings are gaining heat from the system, the temperature of the surroundings increases.
Now, let's see how looks a potential energy diagram for an exothermic reaction:
This represents that the products have less potential energy than reactants.
assume that coal can be represented by the chemical formula c135h96o9ns . if 6.00 tons of coal is burned, what mass of nitrogen in the form of nox gases, is produced by this combustion?
Answers
When 6.00 tons of coal is burned, the mass of nitrogen produced in the form of NOx gases is 6,000,000 g.
To determine the mass of nitrogen in the form of NOx gases produced by the combustion of 6.00 tons of coal, we need to first calculate the molar mass of coal, and then determine the ratio of nitrogen in the chemical formula.
The chemical formula for coal is given as C135H96O9NS.
To calculate the molar mass of coal, we sum the molar masses of each element present, multiplied by their respective subscripts:
Molar mass of C: 12.01 g/mol
Molar mass of H: 1.008 g/mol
Molar mass of O: 16.00 g/mol
Molar mass of N: 14.01 g/mol
Molar mass of S: 32.07 g/mol
Molar mass of coal = (135 * 12.01 g/mol) + (96 * 1.008 g/mol) + (9 * 16.00 g/mol) + (1 * 14.01 g/mol) + (1 * 32.07 g/mol)
Molar mass of coal ≈ 1601.61 g/mol
Next, we need to determine the ratio of nitrogen in the chemical formula. From the formula C135H96O9NS, we can see that there is only 1 nitrogen atom present.
Now, we can calculate the mass of nitrogen produced by the combustion of 6.00 tons of coal. We'll convert tons to grams:
Mass of coal = 6.00 tons * 1000 kg/ton * 1000 g/kg
Mass of coal = 6,000,000 g
Since the ratio of nitrogen to coal is 1:1, the mass of nitrogen produced will be the same as the mass of coal:
Mass of nitrogen produced = 6,000,000 g
Therefore, when 6.00 tons of coal is burned, the mass of nitrogen produced in the form of NOx gases is 6,000,000 g.
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Which correctly explains the relationship between predators and prey?
when the number of prey increase the number of predators will increase
when the number of prey decrease, the number of predators will increase
when the number of prey increase, the number of predators will decrease
BRAINLIESTTT
Answers
Answer:
When the number of prey increase the number of predators will increase.
Explanation:
This is because the predators have more food available, which will make their population grow.
How much activation energy is required for the forward reaction and what is its purpose?
250 kJ must be absorbed to break the chemical bonds in the reactants and form the activated complex.
50 kJ must be released to form the new bonds in the products.
(150 kJ must be absorbed to break the intermolecular forces of attraction in the
reactants.
200 kJ must be absorbed to break the chemical bonds in the reactants.
Answers
The activation energy is required for the forward reaction is 250kJ. 250 kJ must be absorbed to break the chemical bonds in the reactants and form the activated complex is the correct answer.
In this particular case, 250 kJ of energy must be absorbed in order to dissolve the chemical bonds in the reactants and create the activated complex, an unstable intermediate that creates the products. The least amount of energy needed for a chemical reaction to occur is called activation energy.
The reason for activation energy is to guarantee that as it were responses with sufficient energy to overcome the vitality obstruction will continue. It acts as an obstruction that isolates the reactants from the items, anticipating the response from happening suddenly. This permits the control and control of chemical responses, which is basic for numerous chemical forms in both nature and industry.
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freezing and bacterial growth are problems with using _____ in hydraulic systems.
Answers
Freezing and bacterial growth are problems with using Hydraulic fluids in hydraulic systems.
Hydraulic fluids are commonly used in hydraulic systems to transfer energy and to provide lubrication for the moving parts. However, using hydraulic fluids can present some challenges. One of the main problems is freezing. If the fluid is allowed to cool to temperatures below its freezing point, it can form ice crystals, which can cause blockages in the system.
This can lead to costly repairs or even complete failure of the system. Additionally, the presence of moisture in the hydraulic system can lead to bacterial growth. Bacteria can form biofilm on the system components and cause blockages and corrosion. This can lead to a decrease in efficiency and reliability of the system.
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ay tone, if dis molten material pourin from da trade towa is aluminum, den how come dey ain't silva nor like a watery liquid?
Answers
Answer:
can you please type english?Explanation:
8.90 kg is what in grams
Answers
Answer:
It would be 8900 grams
Answer:
8900 Grams
Explanation:
1 kg = 1000 grams
8.90 x 1000=8900
GABReva 2. Explain the usefulness of friction
Answers
Answer:
Friction always slows a moving object down. ... Friction can be a useful force because it prevents our shoes slipping on the pavement when we walk and stops car tyres skidding on the road. When you walk, friction is caused between the tread on shoes and the ground. This friction acts to grip the ground and prevent sliding.
32.According to the solubility graph, at 30°C, which of the following compounds is the most soluble in 100 grams of water?Select one:a. NaClb. Yb2(SO4)3c. KNO3d. NaNO3
Answers
According to the graph presented, we can see that NaNO3 has a higher solubility at 30°C, as we can see more than 100 grams of NaNO3 can be dissolved in 100 grams of water, whereas all other solutes will have a way lower value. Letter D
All types of sciences use the same steps of the scientific method.
True
False
Answers
Which elements comprise the largest portion of the atmosphere?.
Answers
Answer:
Nitrogen and oxygen are the most common elements in the atmosphere. They make up almost 99% of the atmosphere by mass. Argon makes up most of the rest of the atmosphere.
over a certain time period, the steam plant produced 162 million btu of heat, 23,610 g of sulfur dioxide, and 1623 g of particulate matter. determine how many tons of each type of coal the steam plant must have burned. include a vector equation as part of your solution.
Answers
3.9 tons of A and 1.8 tons of B must be burned for Steam power plants.
Steam power plants consist of boilers, steam turbines, generators, and other ancillary equipment. Boilers produce high pressure, high temperature steam. A steam turbine converts the thermal energy of steam into mechanical energy. The generator then converts mechanical energy into electrical energy.
The amount of tons of each type of coal the Steam power plants must have burned is represented by the vector equation:
x1v1 + x2v2 = b
\(\left[\begin{array}{ccc}27.6&3100&250\\30&6400&360\\23&23610&1623\end{array}\right]\)
where first row represents v1, second row represents v2 and third row represents v3.
3.9 tons of A and 1.8 tons of B must be burned.
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How many calories (units of heat energy) per serving is an 18 pound deep fried turkey?
Answers
Answer:
245
Explanation:
BECAUSE THERE ENERGY THEY GIVES THE IMPRESSION OF THE TURKISH