Log in
Sign up for FREE
arrow_back
Library
Chemistry Midterm #1 (S12025)
By Christine Kincaid Becerra
star
star
star
star
star
Share
share
Last updated 5 months ago
45 questions
Add this activity
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Question 1
1.
What is the first action if a chemical spills?
Inform the teacher immediately
Use paper towels
Clean it up yourself
Ignore and continue working
Question 2
2.
What is the proper way to smell a chemical?
Sniff directly from the container
Waft it towards your nose
Hold it close to your face
Take a deep breath
Question 3
3.
How should you dispose of chemicals after an experiment?
Follow the teacher's disposal instructions
Pour them down the sink
Mix with water and discard
Throw them in the trash
Question 4
4.
What should you do before starting an experiment?
Skip to the experiment
Check social media
Ask your friends for help
Read the lab instructions carefully
Question 5
5.
What is the metric unit for length?
second
liter
meter
kilogram
Question 6
6.
How many millimeters are in a centimeter?
1000
100
10
1
Question 7
7.
What metric unit measures volume?
liter
joule
gram
meter
Question 8
8.
How many grams are in a kilogram?
1
10
100
1000
Question 9
9.
What is the base unit for mass in the metric system?
degree
liter
meter
gram
Question 10
10.
How many centimeters are in a meter?
10
1
1000
100
Question 11
11.
What is the first step in the scientific method?
Form a hypothesis.
Ask a question or identify a problem.
Analyze the results.
Conduct an experiment.
Question 12
12.
Which of these is an example of a hypothesis?
All plants need sunlight.
Plants grow faster with more sunlight.
Water makes plants grow.
Plants are green.
Question 13
13.
What does a control group do in an experiment?
Changes every time in the study.
Is not relevant to the results.
Tests the hypothesis directly.
Serves as a standard for comparison.
Question 14
14.
What does it mean to analyze data?
Writing down observations.
Making the results look good.
Interpreting and evaluating collected information.
Just collecting numbers.
Question 15
15.
What is a scientific theory?
A well-substantiated explanation of phenomena.
A law proven without evidence.
A guess that is untested.
A single experiment outcome.
Question 16
16.
What phase of matter has a definite shape and volume?
Plasma
Solid
Liquid
Gas
Question 17
17.
What occurs during condensation?
Liquid turns to gas
Gas turns into liquid
Gas turns to solid
Solid turns to liquid
Question 18
18.
What does convection transfer?
Heat through direct contact
Heat through fluid movement
Heat through vibrations
Heat through sunlight
Question 19
19.
Which method transfers heat through contact?
Conduction
Insulation
Convection
Radiation
Question 20
20.
What phase has no definite shape or volume?
Gas
Plasma
Solid
Liquid
Question 21
21.
What occurs during sublimation?
Liquid to gas
Solid to liquid
Solid to gas without melting
Gas to liquid
Question 22
22.
What is the primary mode of heat transfer in space?
Conduction
Radiation
Absorption
Convection
Question 23
23.
What is a mixture?
A solution of solids
A chemical change
A pure substance only
A combination of two or more substances
Question 24
24.
Which process separates components of a mixture?
Chromatography
Filtration
Evaporation
Distillation
Question 25
25.
What happens during evaporation?
Solid changes to liquid
Liquid changes to gas
Temperature remains constant
Gas changes to liquid
Question 26
26.
What is temperature a measure of?
States of matter
Mass of an object
Amount of heat energy
Average kinetic energy of particles
Question 27
27.
Which process absorbs heat from surroundings?
Endothermic
Evaporation
Chromatography
Exothermic
Question 28
28.
What does heat refer to?
State of matter
Transfer of thermal energy
Temperature of a system
Amount of substance
Question 29
29.
What increases when heat is added to a substance?
Mass
Volume
Temperature
Density
Question 30
30.
Which describes an endothermic reaction?
Temperature increases
Light is emitted
Heat is absorbed
Heat is released
Question 31
31.
What does evaporation involve?
Liquid turning into vapor
Gas turning to liquid
Solid melting
Mixing substances
Question 32
32.
Temperature decreases
Mass decreases
Temperature stays the same
Temperature increases
Question 33
33.
Change in temperature
Mass of the substance
Heat energy absorbed or released
Specific heat capacity
Question 34
34.
Specific heat capacity
Change in temperature
Heat energy transferred
Mass of the substance
Question 35
35.
Heat energy transferred
Change in temperature
Mass of the substance
Specific heat capacity
Question 36
36.
Specific heat capacity
Mass of the substance
Change in temperature
Heat transferred
Question 37
37.
How many centimeters are in 2 meters?
2,000 cm
2.0 cm
200 cm
20 cm
Question 38
38.
Convert 5 grams to kilograms.
0.005 kg
0.5 kg
0.05 kg
50 kg
Question 39
39.
How many liters are in 750 milliliters?
75 L
7.5 L
0.75 L
0.075 L
Question 40
40.
Convert 3 meters to centimeters.
300 cm
30 cm
3,000 cm
30,000 cm
Question 41
41.
How many kilograms are in 1,500 grams?
150 kg
0.15 kg
1.5 kg
15 kg
Question 42
42.
Convert 250 milliliters to liters.
2500 L
0.25 L
25 L
2.5 L
Question 43
43.
How many centimeters are in 5.5 meters?
5500 cm
550 cm
55 cm
5,500 cm
Question 44
44.
Convert 10 grams to kilograms.
0.1 kg
0.1 g
1 kg
0.01 kg
Question 45
45.
How many liters are in 1,200 milliliters?
12 L
0.12 L
120 L
1.2 L