Chapter 3

Question 1

What are reactants and products?

Answer 1

A reaction (placed on the left side of the chemical equation) are the atoms and molecules being combined to make the product which is the finished result

Question 2

Stoichiometry defintion

Answer 2

An area of study that examines the quantity of substances consumed and produced when a reaction takes place

Question 3

Chemical equations represent

Answer 3

Chemical reactions

Question 4

What are the big numbers on the front of the element being used as a reactant?

Answer 4

It is a coefficient and represents how many of that molecule are present

Question 5

The starting number of atoms and ending number of atoms should be the same at the end of a reaction T/F

Answer 5

True

Question 6

How many atoms are in each element on H(NO3)4

Answer 6

H (1), N(4), O(12)

You distribute the number outside of the parenthesis to the inside. If there if a number at the front of the equation, distribute that number across all elements at the end

Question 7

How many atoms are in the molecule 4 Na(Cl3)

Answer 7

4(Na(1), Cl(3))

Na (4), Cl (12)

Question 8

To balance an equation you change the coefficients, not the subscripts T/F

Answer 8

True, if you change the subscripts then you change the identity of the element

Question 9

Name all 4 states of matter and how they are notated

Answer 9

Gas (g), liquid (l), solid (s), aqueous solution (aq, can be dissolved)