chm101_exam_1_ Questions with complete solution 2025/2026

chm101_exam_1_

• Question 1
2 out of 2 points
Which of the following statements is
FALSE?
Select
ed
All of these statements are true.
Answ
e r:

Answ Matter may be a pure substance or it may be a mixture.
e rs:

A pure substance may either be an element or a
compound. A mixture may be either homogeneous or
heterogeneous.
Mixtures may be composed of two or more elements,
two or more compounds, or a combination of both.


All of these statements are true.
• Question 2
2 out of 2 points
Metals are located where on the periodic
table?
Selected
Answer:
left
side

Answers:
left side
right
side
middle
zig-zag diagonal
line none of the
2 out of 2 points
above
• Question 3
Which of the following sets of units is not in the order of increasing size?

Selected
Answer:
cm < μm < km

Answers: μg < g < kg

mL < dL < L

,ns < ms < s


cm < μm <


km

, μmol < mmol < mol e
• Question 4

How many kilojoules are there in 95.0 Calories?

Selected B
Answer:
e
397
Answers: 2.27x107

3.97x10-4


397

22.7

none of these
• Question 5

How many total atoms are in the formula Al2(CO3)3?

Selected
Answer:


14

Answers: 8

9

12


14

none of these
• Question 6

Which of the following elements has an atomic
number of 4?

Selected
Answer:


Be

Answers: H

C

H