stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chemistry Test Review Flashcards | StudBud
Explore
/
Chemistry Test Review
Chemistry Test Review
43 terms
·
StudBud Administration
·
849 plays
Basics of Chemistry
Flashcards
43 cards
F
Practice quiz
P
Host live
L
Questions
43
Answers
1
This is the molecular model for what chemical reaction?
baking soda and road salt
electrolysis of water
burning magnesium
vinegar and baking soda
2
What happens in a chemical reaction?
new substances are created
nothing because chemistry is boring
products create new reactants
in a closed system, the mass changes
3
Mixtures and phase changes are examples of chemical reactions.
Yes
No
Sometimes
Yep
4
A process in which substance(s) interact to form new substance(s) with different properties is:
chain reaction
chemical reaction
physical change
chemical change
5
In a chemical reaction, why is the mass of the reactants the same as the mass of the products?
The Law of Conservation of Mass
The Law of Conservation of Life
The Law of Conservation of Chemical Reactions
The Law of Conservation of Energy
6
Which of the following is a chemical reaction?
cutting a piece of paper into 2 pieces
dropping a sliced orange into sodium hydroxide
freezing liquid mercury
adding yellow to blue to make green
7
Which statement is true?
Open systems do NOT exchange anything with surroundings.
Open systems exchange energy and matter with surroundings.
Isolated systems exchange energy and matter
Closed systems exchange matter with surroundings, not energy
8
What is the main difference between physical and chemical properties?
chemical properties involve a chemical reaction
chemical properties only involve the physical appearance
physical properties are only qualitative
physical properties involve new products
9
Chemical Reaction
= Road Salt + Baking Soda + Water
-->
Chalk + Water + Carbon Dioxide
The mass of the products is:
greater than the reactants
less than the reactants
the same as the reactants
0
10
The truest signs of a chemical reaction include:
physical change, new substances, chemical reaction
properties changing, new substances, atoms, rearranging
physical change, chemical change, atoms rearranging
new substances, chemical change, properties changing
11
All molecules are compounds, but not all compounds are molecules.
true
false
12
Color change, temperature change, volume change, bubbles, and light are all examples of:
chemical properties
a possible chemical reaction
a definite chemical reaction
physical properties
13
Although protons, electrons, and neutrons make up everything, they are distinctly parts of:
atoms
elements
molecules
compounds
14
Which is
NOT
a
definite
reason we know that burning magnesium is a chemical reaction?
there was light
atoms rearranged
a new substance was made
properties changed
15
Protons have a positive charge, electrons have a negative charge, and neutrons are neutral.
no
yes
16
Baking Soda(10g) + Vinegar(5g) + Water(15g)
->
Trisodium Citrate(
?
) + Carbon Dioxide(2g) + Water(15g) -
Solve for ?
13g
23g
15g
28g
17
What part of an atom determines its atomic number?
electron
proton
neutron
atom
18
How can you measure a physical property?
use your 5 senses to observe it
change the chemical identity of it
look at the chemical reaction with it
see if it explodes when fire is added to it
19
What does Chemistry focus on?
all of these
properties
matter
combination or separation of substances
20
A chemical equation needs to be balanced so that it follows what Law?
Conservation of Mass
Mass Equalization
Energy Equalization
Conservation of Energy
21
What is a property?
A similar characteristic
A mirror image of a tetrahedral characteristic
A characteristic that changes
A unique, identifying characteristic
22
Making Kool Aid is an example of a:
all of these
mixture
phase change
chemical reaction
23
Which is NOT an example of a physical property?
flammability
color
boiling point
pH
24
In a chemical reaction, the reactants are on the right side and products on the left side.
false
true
25
Physical properties can be used to determine whether substances are the same or different.
yes
no
26
Which of the following is a physical reaction?
fireworks exploding
corroding metal
shattering glass with a baseball
lighting a match
27
In our Alka Seltzer lab, which container demonstrated a totally closed system?
film canister
sink
beaker
bottle
28
Which is NOT a way to represent a chemical reaction?
word equation
saturation equation
chemical formula
molecular model
29
What is NOT an example of a chemical change?
crushing of a can
burning of wood
baking a cake
rusting of a nail
30
In the burning magnesium chemical reaction: Mg and O were the reactants and MgO was the product.
False
True
31
Why is making Kool-aid
NOT
a chemical reaction?
atoms rearranged
it was irreversible
new properties
it is a mixture
32
How do atoms and elements differ?
elements = made of entirely 1 type of atom
atoms = molecules that contain at least 2 different elements
elements = 2 or more atoms joined together
atoms = made entirely of 1 type of element
33
What is the name of the chart that organizes all of the elements by their atomic number?
The Periodic Table of Elements
The Elemental Chart
The Table of Elements
The Official Periodic Elemental Table
34
What are the missing numbers to balance: NaHCO
3
+ HCH
3
COO + H
2
O
-->
CH
___
COONa
+ __
H
2
O + CO
___
3, 1, 1
3, 2, 2
2, 2, 2
2, 1, 1
35
What is the difference between physical and chemical change?
chemical = bonds between atoms are broken or created
physical = bonds between atoms are broken or created
physical = molecules grow larger or smaller
chemical = molecules grow larger or smaller
36
When adding baking soda to road salt, what were our
observed
evidence for a chemical reaction?
different properties
both different properties and new substance
neither different properties or a new substance
new substance
37
Which is true about physical and chemical changes?
physical = usually about physical states of matter
chemical = describes the physical states of matter
a melting ice cube = chemical change
creating hydrogen peroxide from water = physical change
38
Which of these is true?
In a chemical reaction, new atoms are created.
In a chemical reaction, bonds between atoms are broken.
In a physical change, reactants contact each other.
In a physical change a new substance is created
39
What law states that the mass of the reactants and products is the same?
Law of Conservation of Energy
Law of Conservation of Systems
Law of Conservation of Mass
Law of Conservation in a Chemical Reaction
40
What is matter?
Something that is made of the same atoms throughout
What something is made of
It is the same thing as density
A unique characteristic that helps identify a substance
41
What is an example of a molecule?
H2O
O
O2
CO2
42
In a chemical reaction, it is
possible
to have only 1 reactant although it is not typical.
False
True
43
In a chemical reaction, products = beginning substances and reactants = ending substances.
true
false
