Unit 1, 2 and Section 3.1 Test
Due Jun 27 at 11:59pm Points 132.5 Questions 82 Available Jun 21 at 12am - Jun 27 at 11:59pm 7 days
Time Limit 120 Minutes
Attempt History
Attempt Time Score
LATEST Attempt 1 83 minutes 111 out of 132.5
Score for this quiz: 111 out of 132.5
Submitted Jun 26 at 7:13pm
This attempt took 83 minutes.
Question 1 pts
How many microliters are in 41.0 mL?
0.041
4.1 x 103
Correct! 4.10 x 104
4.1 x 1010
None
Question 2 pts
A sample of wood with a mass of 3.0 grams was burned in an open dish. The ashes weighed 1.2 grams. What happened to the
rest of the wood?
None
The remaining mass was destroyed.
The remaining 1.8 grams was converted into heat.
Correct! The remaining 1.8 grams was converted into gaseous compounds.
Nothing, the burned wood simply has a mass of 1.2 grams.
Question 3 pts
The correct decimal representation of 1.201 x 10 -7 is:
12010000
0.0001201
Correct!
0.0000001201
1201.000
, None
Question 4 pts
Determine the answer for the equation below with correct number of significant figures:
3.215 × 13.2 ÷ 0.218 =
You Ans were d 194.669
None of the above.
194.7
Correct Answ er 195
194.67
Question 5 1..5 pts
Which statement below best describes the process of the paint on a vehicle fading over time?
Physical change because the paint molecules are still paint molecules.
Physical change because the paint molecules have risen to the surface of the clear coat finish.
Correct! Chemical change because the paint molecules are changing composition.
None of the above.
Chemical change because the paint molecules are changing phases.
Question 6 1..5 pts
Which of the following statements about soda pop is false?
All of the above statements are true.
Soda pop is a chemical mixture of mostly sugar, water and carbon dioxide.
Correct! The carbon dioxide is forced to mix with the water by the presence of sugars.
When a can is opened, the pressure release allows carbon dioxide to form bubbles.
The molecules important to fizzing are carbon dioxide and water.
Question 7 1..5 pts
Determine the answer to the following equation with correct number of significant figures:
(17.103 + 2.03) × 1.02521 =
, None of the above.
20
Correct!
19.62
19.6
19.6153
Question 8 1..5 pts
What is the value of 335 K on the Celsius temperature scale?
66.4
Correct!
62
608
None of the above.
167
Question 9 1..5 pts
Determine the answer for the equation below with correct number of significant figures:
1.2 × 1.79 =
Correct!
2.1
2.2
None of the above.
2.148
2.15
Question 10 1..5 pts
What is the value of 98 °F in units of °C?
371
Correct!
37
None of the above.
22
72
Due Jun 27 at 11:59pm Points 132.5 Questions 82 Available Jun 21 at 12am - Jun 27 at 11:59pm 7 days
Time Limit 120 Minutes
Attempt History
Attempt Time Score
LATEST Attempt 1 83 minutes 111 out of 132.5
Score for this quiz: 111 out of 132.5
Submitted Jun 26 at 7:13pm
This attempt took 83 minutes.
Question 1 pts
How many microliters are in 41.0 mL?
0.041
4.1 x 103
Correct! 4.10 x 104
4.1 x 1010
None
Question 2 pts
A sample of wood with a mass of 3.0 grams was burned in an open dish. The ashes weighed 1.2 grams. What happened to the
rest of the wood?
None
The remaining mass was destroyed.
The remaining 1.8 grams was converted into heat.
Correct! The remaining 1.8 grams was converted into gaseous compounds.
Nothing, the burned wood simply has a mass of 1.2 grams.
Question 3 pts
The correct decimal representation of 1.201 x 10 -7 is:
12010000
0.0001201
Correct!
0.0000001201
1201.000
, None
Question 4 pts
Determine the answer for the equation below with correct number of significant figures:
3.215 × 13.2 ÷ 0.218 =
You Ans were d 194.669
None of the above.
194.7
Correct Answ er 195
194.67
Question 5 1..5 pts
Which statement below best describes the process of the paint on a vehicle fading over time?
Physical change because the paint molecules are still paint molecules.
Physical change because the paint molecules have risen to the surface of the clear coat finish.
Correct! Chemical change because the paint molecules are changing composition.
None of the above.
Chemical change because the paint molecules are changing phases.
Question 6 1..5 pts
Which of the following statements about soda pop is false?
All of the above statements are true.
Soda pop is a chemical mixture of mostly sugar, water and carbon dioxide.
Correct! The carbon dioxide is forced to mix with the water by the presence of sugars.
When a can is opened, the pressure release allows carbon dioxide to form bubbles.
The molecules important to fizzing are carbon dioxide and water.
Question 7 1..5 pts
Determine the answer to the following equation with correct number of significant figures:
(17.103 + 2.03) × 1.02521 =
, None of the above.
20
Correct!
19.62
19.6
19.6153
Question 8 1..5 pts
What is the value of 335 K on the Celsius temperature scale?
66.4
Correct!
62
608
None of the above.
167
Question 9 1..5 pts
Determine the answer for the equation below with correct number of significant figures:
1.2 × 1.79 =
Correct!
2.1
2.2
None of the above.
2.148
2.15
Question 10 1..5 pts
What is the value of 98 °F in units of °C?
371
Correct!
37
None of the above.
22
72
