Unit C0 Quiz – Foundations 			

Name: ___________________________________________  

Period: ________ Seat #: _________

Directions: Pick the best answer possible. You MUST show work in the boxes to earn credit if any math is involved. No work, no credit.  You MUST bubble your final answer on your bubble sheet. No points will be given without a bubbled answer. All electronics must be stored in the calculator holder, and you must use Mrs. Farmer's class calculator. 

1.	A __________ change involves a change in one or more physical properties, but no change in the fundamental components that make up the substance.	
A)	mixed	
B)	chemical	
C)	potential	
D)	physical	

2.	What is wrong with the following graph?
DON’T BUBBLE! Write answer HERE:

3.	SHOW WORK - What is the mass of an object that has a density of 2.5 g/mL and a volume of 10 mL?	
A)	0.25g	
B)	4 g	
C)	2.5 g	
D)	25 g	

4.	Which is an example of a homogeneous mixture?	
A)	aluminum	
B)	kool-aid	
C)	oil and water	
D)	chicken soup	

5.	Which of the following is a chemical change?	
A)	A “tin” can rusts.	
B)	Peanuts are crushed.	
C)	Water condenses on a mirror.	
D)	A damp towel dries.	

6.	Which of the following pairs demonstrates the law of multiple proportions?	
A)	C2H4 and C2H4O	
B)	H2O and H2	
C)	CH4 and CO2	
D)	PO3 and PO4	

Unit C0 Quiz – Foundations 			

Name: ___________________________________________  

Period: ________ Seat #: _________

Directions: Pick the best answer possible. You MUST show work in the boxes to earn credit if any math is involved. No work, no credit.  You MUST bubble your final answer on your bubble sheet. No points will be given without a bubbled answer. All electronics must be stored in the calculator holder, and you must use Mrs. Farmer's class calculator. 

1.	A __________ change involves a change in one or more physical properties, but no change in the fundamental components that make up the substance.	
A)	mixed	
B)	chemical	
C)	potential	
D)	physical	

2.	What is wrong with the following graph?
DON’T BUBBLE! Write answer HERE:

3.	SHOW WORK - What is the mass of an object that has a density of 2.5 g/mL and a volume of 10 mL?	
A)	0.25 g	
B)	4 g	
C)	2.5 g	
D)	25 g	

4.	Which is an example of a homogeneous mixture?	
A)	aluminum	
B)	kool-aid	
C)	oil and water	
D)	chicken soup	

5.	Which of the following is a chemical change?	
A)	A “tin” can rusts.	
B)	Peanuts are crushed.	
C)	Water condenses on a mirror.	
D)	A damp towel dries.	

6.	Which of the following pairs demonstrates the law of multiple proportions?	
A)	C2H4 and C2H4O	
B)	H2O and H2	
C)	CH4 and CO2	
D)	PO3 and PO4	

7.	Which of the following is an element?	
A)	magnesium (Mg)	
B)	soda	
C)	water (H2O)	
D)	the earth	

8.	An example of a mixture is	
A)	purified water	
B)	the air in this room	
C)	hydrogen fluoride (HF)	
D)	gold (Au)	

9.	A __________ change involves a change in the fundamental components of the substance; a given substance changes into a different substance or substances.	
A)	potential	
B)	chemical	
C)	physical	
D)	mixed	

10.	Which of the following is only a physical change?	
A)	Leaves turn colors in the fall.	
B)	A banana ripens.	
C)	Ice melts	
D)	Cookies burn in the oven.	

11.	SHOW WORK - You perform an experiment where you heat 24.25 g an unknown substance over a flame. You notice some gas bubbles forming and leaving the open beaker. When finished you weigh the beaker and find there is 1.25 g of substance left in the beaker. How much gas escaped?	
A)	1.25 g	
B)	23 g	
C)	24.25 g	
D)	25.5 g	

7.	Which of the following is an element?	
A)	magnesium (Mg)	
B)	soda	
C)	water (H2O)	
D)	the earth	

8.	An example of a mixture is	
A)	purified water	
B)	the air in this room	
C)	hydrogen fluoride (HF)	
D)	gold (Au)	

9.	A __________ change involves a change in the fundamental components of the substance; a given substance changes into a different substance or substances.	
A)	potential	
B)	chemical	
C)	physical	
D)	mixed	

10.	Which of the following is only a physical change?	
A)	Leaves turn colors in the fall.	
B)	A banana ripens.	
C)	Ice melts	
D)	Cookies burn in the oven.	

11.	SHOW WORK - You perform an experiment where you heat 24.25 g an unknown substance over a flame. You notice some gas bubbles forming and leaving the open beaker. When finished you weigh the beaker and find there is 1.25 g of substance left in the beaker. How much gas escaped?	
A)	1.25 g	
B)	23 g	
C)	24.25 g	
D)	25.5 g	

Answer Key

1.	D	
2.	No descriptive title	
3.	D	
4.	B	
5.	A	
6.	D	
7.	A	
8.	B	
9.	B	
10.	C	
11.	B