Explain how a change in thermal energy causes matter to change from one state to another. Give two examples
when thermal energy is absorbed or released it changes the state of matter from one state to another. melting ice and freezing a liquid are examples
Net force = mass x acceleration so you would plug in the numbers to make it
2n = 200 x a then divide by 200 on both sides
A = 0.01 m/s
Explanation:
It is known that in 1 mole there are 
atoms or molecules.
It is given that there are 
carbon molecules. Therefore, calculate the moles as follows.
Number of moles = 
= 1.196 mol
Thus, we can conclude that there are 1.196 mol in carbon molecules.
Answer:
Tc
Explanation:
You just have to follow the rows with the exponents. Just remember that when we get to d, the number in the front is a period lower. Hope this helps!
Answer:
B
Explanation:
A chemical reaction equation is balanced if the number of atoms of each element on the right hand side of the reaction equation is the same as the number of atoms of the same element on the left hand side of the reaction equation.
By inspection, the chemical reaction written in the question is a balanced chemical reaction equation.
However, the statement in option B that more molecules of N2 are needed to produce NH3 than molecules of H2 is a false statement since only one mole of N2 and three moles of H2 are required to produce NH3 according to the reaction equation as written in the question.
