AP chem chapter 1 review

A substance in which all the atoms are the same

• colloid
• homogeneous mixture
• solution
• element

A mixture that contains two or more substances blended evenly throughout

• heterogeneous mixture
• homogeneous mixture
• suspension
• colloid

Which of the following is an element?

• Sugar
• Salt
• Water
• Oxygen

Which one of these pictures represents a mixture? 

• 1
• 2
• 3
• 1, 2 and 3

Is burning wood a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

Changing the phase, size or shape of something....

• Chemical change
• Physical Change
• Suspension
• Colloid

Tags

NGSS.MS-PS1-4

Which is NOT a chemical change?

• Leaves changing colors in the fall
• Iron rusting
• Digesting Lunch
• Ice Melting

Tags

NGSS.MS-PS1-2

A gold bar is an example of a.....

• pure element
• pure compound
• heterogeneous mixture
• homogeneous mixture

How many significant figures does the following number have: 2001800.

• 1
• 4
• 6
• 7

How many significant figures does the following number have: 56.040

• 2
• 3
• 4
• 5