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8th Grade Chemistry Review Flashcards | StudBud
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8th Grade Chemistry Review
8th Grade Chemistry Review
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EAMS 8th Grade Chemistry Test Quiz
Flashcards
34 cards
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Questions
34
Answers
1
An example of an intrinsic property is
solubility
thermal expansion and contraction
viscosity
volume
2
Al =
Alloy
Albumen
Alanine
Aluminum
3
A mixture that is uniform throughout is a
homogenous mixture
heterogenous mixture
4
Mass =
amount of density something has
amount of matter
amount something weighs
amount of space something takes up
5
There are about ____ elements on the periodic table.
150
200
100
50
6
Law of __________ of Mass - matter cannot be created or destroyed; it can only change forms.
Preservation
Conservation
Limitation
Observation
7
Na =
Fermium
Neon
Neodymium
Sodium
8
Matter is identified by _________ that make it unique
factors
properties
its composition
substances
9
Iron oxidizing, rusting or corroding are examples of
a chemical change
an extrinsic change
a physical change
an intrinsic change
10
Cl =
Cadmium
Calcium
Californium
Chlorine
11
Pb =
Lead
Plutonium
Phosphorus
Iron
12
T/F? Compounds can be separated by physical means
False
True
13
An example of a homogeneous mixture is
salad
bowl of cereal
coffee
blood plasma
14
density =
weight/volume
volume/mass
buoyancy/mass
mass/volume
15
Freezing water to ice is an example of
a chemical change
a physical change
16
How many elements are on the most current periodic table?
115
113
117
118
17
Intrinsic phsyical properties...
dont depend on the amount of a substance
depend on the amount of a substance
18
NaCl =
sugar
baking powder
baking soda
table salt
19
exothermic = gets _____
hot
cool
20
What is matter?
Everything
Anything that has space and takes up mass.
Anything that has weight and takes up space.
Anything that has mass and takes up space.
21
Cu =
Cadmium
Cesium
Copper
Calcium
22
Ca =
Californium
Cadmium
Carbon
Calcium
23
____________ = used to model chemical reactions
chemical table
reactants
chemical equations
products
24
smallest part of a compound that is still the compound =
molecule
atom
element
substance
25
Nitrogen =
Ng
N
Nt
Ni
26
_________ are represented by formula and subscripts.
Compounds
Substances
Elements
Mixtures
27
Density doesn't depend on the amount of a substance so it is an
intrinsic property
extrinsic property
28
Mass is measured in
newtons
grams
29
The study of the composition, structure, properties and changes of matter =
Science
Matterology
Chemistry
Geology
30
Oxygen =
Ox
O
Og
Oy
31
Replace the "?"
coefficients
variables
subscripts
multiples
32
Fill in the blank
1. Compound; 2. Element
1. Element; 2. Compound
1. Mixture; 2. Substance
33
Chemical change: atoms are rearranged and ___ __________ are formed
new substances
new reactants
new elements
34
A compound =
2 or more substances together but not chemically combined.
2 or more substances together and chemically combined.
