Chemistry Final Test Study Guide

* Which shows one example of a physical change and one example of a chemical change, in that order?

• boiling water and melting wax

• rusting iron and baking a cake

• dissolving powder and shredding paper

• freezing water and burning coal

Tags

NGSS.MS-PS1-4

* How does a balanced chemical equation satisfy the Law of Conservation of Mass?

• During a chemical reaction, the total amount of matter stays the same.

• During a chemical reaction, the total number of atoms increases.

• During a chemical reaction, matter is destroyed.

• During a chemical reaction, one or more new substances are formed.

Tags

NGSS.MS-PS1-5

7. When a metal can be formed or stretched into a wire, this is called being

• malleable

• ductile

• precipitate

• proton

According to the Law of Conservation of Mass

• The mass of the reactants = the mass of the products.

• The mass of the reactants is less than the mass of the products.

• The mass of the reactants is more than the mass of the products.

• The mass of the reactants is less when a precipitate is formed.

Tags

NGSS.MS-PS1-5

* An ice cube is put into a heated pan. What will most likely happen to the molecules in the ice, as the ice is heated?

• The molecules will begin to move slower.

• The molecules will begin to move faster.

• The molecules will begin to increase in density.

• The molecules will begin to condense in the air.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

13. Color, shape, luster, size and density are what kind of properties of matter?

• chemical properties

• physical properties

15. *Which substance is composed of only one type of atom?

• element

• compound

• mixture

• solution

17.* If a chemical reaction, such as photosynthesis, begins with 6 atoms of Carbon (C), how many atoms of Carbon (C) should be in the products?

• 12 atoms of Carbon (C)

• 6 atoms of Carbon (C)

• 18 atoms of Carbon (C)

• 0 atoms of Carbon (C)

Tags

NGSS.MS-PS1-5

What does the period number tell me about the element?

• what family it is in

• how many protons

• its atomic number

• how many electron shells

How many families or groups are on the Periodic Table?

• 2

• 17

• 18

• 1