CHEM 1212 MIDTERM LSU
1. Match each item to its proper disposal method.
Excess chemical
Answer Appropriate waste container
2. Match each item to its proper disposal method.
Reaction mixture
Answer Appropriate waste container
3. Match each item to its proper disposal method.
Used filter paper
Answer Trash can
4. Match each item to its proper disposal method.
Cracked or chipped beaker
Answer broken glass box
5. When is it okay to remove your chemical splash proof goggles?
,Answer When everyone in the lab has put away all chemicals and glassware.
6. Which of the following items of clothing are appropriate to wear in CHEM
1212 Lab to protect your skin ?
Select all that apply.
Answer -Tshirt
-Scrub pants
-Jeans
-Apron
7. What is the density of a solid that weighs 4.55 g and occupies a volume of 3.78
mL?
Answer 1.20 g/mL
8. MgSO4(s) disappears when added to water(ℓ) and stirred.
What describes the relationship between MgSO4 and water?
Answer soluble
9. Solubility
, Answer the ability of a solid or gas to dissolve in a liquid
10. Solvent
Answer solution that does the dissolving
11. Solute
Answer substance being dissolved
12. Miscible
Answer When 2 liquids mix completely with each other
13. Immiscible
Answer if 2 liquids do NOT mix completely and form two layers
14. Density
Answer mass to volume ration (mass/volume) (g/mL)
15. In the picture, what is the correct volume reading?
Answer 1.61 mL
1. Match each item to its proper disposal method.
Excess chemical
Answer Appropriate waste container
2. Match each item to its proper disposal method.
Reaction mixture
Answer Appropriate waste container
3. Match each item to its proper disposal method.
Used filter paper
Answer Trash can
4. Match each item to its proper disposal method.
Cracked or chipped beaker
Answer broken glass box
5. When is it okay to remove your chemical splash proof goggles?
,Answer When everyone in the lab has put away all chemicals and glassware.
6. Which of the following items of clothing are appropriate to wear in CHEM
1212 Lab to protect your skin ?
Select all that apply.
Answer -Tshirt
-Scrub pants
-Jeans
-Apron
7. What is the density of a solid that weighs 4.55 g and occupies a volume of 3.78
mL?
Answer 1.20 g/mL
8. MgSO4(s) disappears when added to water(ℓ) and stirred.
What describes the relationship between MgSO4 and water?
Answer soluble
9. Solubility
, Answer the ability of a solid or gas to dissolve in a liquid
10. Solvent
Answer solution that does the dissolving
11. Solute
Answer substance being dissolved
12. Miscible
Answer When 2 liquids mix completely with each other
13. Immiscible
Answer if 2 liquids do NOT mix completely and form two layers
14. Density
Answer mass to volume ration (mass/volume) (g/mL)
15. In the picture, what is the correct volume reading?
Answer 1.61 mL
