The correct answer among the choices given is the first option. The statement that best describes the energy change that takes place during deposition is that h<span>eat energy is released by the substance.</span> Deposition is a phase change from the gas phase into a solid form or the most condensed form.
Among ammonia, neon and copper,
Ammonia is a compound
Neon is an element
Copper is an element
Ammonia is a compound as it is made up of nitrogen and hydrogen that combines in a ratio that is 1 :3 to form 1 mole of ammonia.
And copper and neon are element as they consist of only one type of atom.
So the answer is that Ammonia is a compound
Neon is an element
Copper is an element
Answer: Balanced equation that is formed by combining these two half reactions is .
Explanation:
A chemical equation which contains same number of atoms on both reactant and product side is called a balanced chemical equation.
For example,
On cancelling the common species from both these half-reactions, the complete balanced equation will be as follows.
Thus, we can conclude that balanced equation that is formed by combining these two half reactions is .
Answer:
It is illegal
Explanation:
Fracking involves drilling deep into the earth crust in which a water mixture with high pressure is directed at the rock with the purpose of releasing the gas inside. This process is common in the exploration of natural gas and other hydrocarbons.
It is however illegal because the water are mostly contaminated due to the hydrocarbons present and harmful to life. It is advisable and the best to remove the water and recycle them in treatment plants
A sample of liquid benzene at 80°C and a sample of gaseous benzene at 80°C will have the same average kinetic energy of benzene molecules.
Let us recall that the average kinetic energy of molecules depends on the molar mass of the substance as well as the temperature of the substance. We have that;
average kinetic energy=
R = gas constant
NA =Number of molecules
M = Temperature in Kelvin
We can see that the average kinetic energy depends on temperature therefore, a sample of liquid benzene at 80°C and a sample of gaseous benzene at 80°C will have the same average kinetic energy of benzene molecules.
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