A representation of how something occurs

What is the purpose of this piece of equipment?

To hold a crucible over a bunsen burner

Why is mass preferred over weight as a measurement?

It has the same value everywhere on earth

What is the purpose of this piece of equipment?

To help pour liquids from one container to another

Which is an example of pure research?

Examining new materials to study their properties

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Chapter 1

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A chemistry quiz to review chapter 1, the scientific method and safety/ lab procedures.

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Questions 29

Answers

1
The effect of cold air on crops was studied and an equation for it was written. Which is it?
Law
Constant
Theory
Control
2
What should never be done in lab?
Clean up spills
Take off goggles
All should not be done in lab
Heat an Erlenmeyer Flask
3
How is radiant energy transferred?
Sound waves
Objects that are moving
Electromagnetic waves
Heat through two objects in contact with one another
4
What is a model?
An explanation of observations
A representation of how something occurs
Description of natural phenomena
A Law describing the nature of the universe
5
What is the equipment in the picture?
Erlenmeyer Flask
Round bottom flask
Beaker
Test Tube
6
What is the purpose of this piece of equipment?
To hold a crucible over a bunsen burner
To hold evaporating dishes above a hot plate
To keep beakers secure when they are on a ring stand
To use as a stand to allow hot crucibles to cool down
7
You are given a task to determine the effect of acid rain on plants, which should be constant?
pH of the water used
Garden tool used to plant the seeds
color of container used to transport the water
Type of plant
8
What is the equipment in the picture?
Beaker
Test Tube
Evaporating dish
Measuring cup
9
Which is most important of a procedure?
Length
Numbered
Pictures
Detail
10
What is the name of this piece of equipment?
Erlenmyer Cylinder
Beaker
Test Tube
Graduated Cylinder
11
An organic chemist would study what?
Carbon based compounds
How to speed up reactions
How to increase yield in reactions
What the components of unknown compounds are
12
An idea that states "you can view the atom as a solid billiard ball" is a...
Hypothesis
Law
Model
Judgement Call
13
The mass of the reactants before a chemical reaction was 235g, what will the mass be after?
Greater than 235g
Depends on what the products were
Less than 235g
235g
14
What is mass?
Amount of matter in an object
Amount of volume an object takes up
Amount of weight that an object possesses
The energy associated with changing an objects inertia
15
Which object would have the greatest kinetic energy if they were all at the same speed?
A car
A golfball
A person
A bowling ball
16
Which of the following is not an example of matter?
Ham Sandwich
Oxygen Gas
Atoms of Hydrogen
Radio Waves
17
Why is mass preferred over weight as a measurement?
Mass is dependent on the volume to matter ratio
Gravity effects mass but not weight
Weight only accounts for the volume of an object
It has the same value everywhere on earth
18
Which is an example of quantitative data?
The truck is heavier than a 2000 lb animal
The black ruler is very short
The desk is white
The table is 36 in high
19
What is the equipment in the picture?
Mortar and pestle
Crucible and cover
Evaporating dish with lid
porcelain beaker with cover
20
The key part of a hypothesis is that it must be what?
Logical
Qualitative
Testable
Quantitative
21
A prediction based on observations is called a/ an...
Conclusion
Theory
Law
Hypothesis
22
What should never go into a conclusion of a lab?
Feelings about the lab
The hypothesis
Summary of data
23
What law / rule / theory states that matter cannot be created nor destroyed?
Uniform Composition
Conservation of Matter
Constant Composition
Conservation of Mass
24
If 15.2 g of hydrogen is combined with 10.3 g of oxygen, how many grams of water will result?
25.5 g
15.2 g
4.9 g
10.3 g
25
Which variable is changed in the lab?
Control
Dependent
Independent
Constant
26
What is the purpose of this piece of equipment?
To help pour liquids from one container to another
To measure liquids
To heat liquids
To hold liquids
27
Chemistry is the study of...
Matter and changes
Living organisms
Reactions between elements
Forming compounds
28
Which is an example of pure research?
Researching why crops in a region are dying off
Finding a cure for diabetes
Examining new materials to study their properties
Finding ways to make cars more rust proof
29
Which chemist would study metal alloys?
Biochemist
Organic Chemist
Analytical Chemist
Inorganic Chemist

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