Chemical Reactions and Atoms Quiz

In a chemical reaction or a change of state, whatever you start with, you must ___ with.

• end

• start

Tags

NGSS.MS-PS1-5

What does the Law of Conservation of Matter/Mass state?

• energy cannot be created or destroyed

• In a chemical reaction, matter is neither created nor destroyed.

Tags

NGSS.MS-PS1-5

What does it mean for a chemical equation to be balanced?

• number of atoms you put in must be unequal to the atoms that you get at the end of the reaction

• The number of atoms you put in, must equal the number of atoms at the end of your reaction.

Tags

NGSS.MS-PS1-5

Does changing the shape of an object change its mass? Why or why not?

• No, the shape does not change. You cannot create or destroy more mass.

• Yes, the shape does change. You can create or destroy mass.

What are the subatomic particles that make up an atom? What are their charges and where are they located in an atom?

Which subatomic particle lets us know which atom a Bohr model represents?

• electron

• neutron

• proton

How do you know when a new element starts?

What are rows? Which direction do they go on the periodic table?

What are columns? Which direction do they go on the periodic table?

What is an atom?

• Smallest particle that contains the properties of a substance.

• largest particle that contains the properties of a substance

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5