Chemistry part 1 Review

What is the formula we use to solve for density?

• D= M/V

• D=V/M

• D=MxV

How do you find the volume of a rectangular solid?

• LxWxH

• LxW

• (L x W)/H

• (L x H)/W

In science class, how do you find the volume of an irregular solid?

• M/V

• water displacement

• LxWxH

• LxW

• V/M

Which of the following best defines a physical change?

• A substance changes in appearance or form, but a new substance is NOT formed. This type of change can be considered reversible.

• A change in a substance that produces one or more new substances that have different properties than the original. This type of change is very difficult to reverse.

Tags

NGSS.MS-PS1-4

Which of the following best defines a chemical change?

• A substance changes in appearance or form, but a new substance is NOT formed. This type of change can be considered reversible.

• A change in a substance that produces one or more new substances that have different properties than the original. This type of change is very difficult to reverse.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Name TWO indicators (evidence) of a chemical change.

Tags

NGSS.MS-PS1-2

Identify the following as either a chemical or physical change.

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which state of matter is represented in the image below?

• solid

• liquid

• gas

• plasma

Tags

NGSS.MS-PS3-4

Which state of matter is represented in the image below?

• solid

• liquid

• gas

• plasma

Tags

NGSS.5-PS1-1

Which state of matter is represented in the image below?

• solid

• liquid

• gas

• plasma

Tags

NGSS.MS-PS1-1