Science Review

Question 1

Which pH numbers reflect weak acids?

Answer 1

4,5,6

Question 2

Which pH numbers reflect weak bases?

Answer 2

8, 9, 10

Question 3

What happens to atoms in a chemical reaction?

Answer 3

They are rearranged

Question 4

A mixture that forms when one substance dissolved another

Answer 4

Solution

Question 5

What side of a chemical equation is the product side?

Answer 5

Right (after the yields sign)

Question 6

A subscript is the small number below and to the right of a(n)___ that tells the number of___ of that element

Answer 6

Element symbol, atoms

Question 7

A chemical reaction is balanced when

Answer 7

Both sides have the same number and type of atoms

Question 8

How does the Law of Conservation of Mass apply to chemical reactions?

Answer 8

The reactants and products must have exactly the same number and type of atoms.

Question 9

What is an example of physical property?

Answer 9

State of matter

Question 10

What is CO2 an example of?

Answer 10

Compound

Question 11

A combination of two or more substances that are not chemically combined

Answer 11

Mixture