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Chemistry Unit Review - SJA Flashcards | StudBud
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Chemistry Unit Review - SJA
Chemistry Unit Review - SJA
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#physicalscience #9thgrade
Flashcards
16 cards
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Practice quiz
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Questions
16
Answers
1
Which state of matter is described as definite volume, but NOT a definite shape?
Plasma
Liquid
Gas
Solid
2
There is always energy transfer in a phase change, when
melting
the energy transfer is ...
Molecular
Radiant
Endothermic
Exothermic
3
If the following sample has a volume of 1000 ml, and a mass of 9000 grams, what is the density?
0.11 ml/g
1000 ml
9000 g
9 g/ml
4
Name the two chemical properties of matter.
Reactivity, Precipitation
Reactivity, Flammability
Reactivity, Viscosity
Reactivity, Conductivity
5
What classification of matter is shown in the picture:
Colloid
Homogeneous Mixture
Pure Substance
Heterogeneous Mixture
6
Kinetic Theory of a solid??? Particles have....
attractive forces, particles can flow to new locations
attractive forces, keeps particles in a defined order
no attractive forces, random/constant particle motion
no attractive forces, particles have defined order
7
What physical property is shown in the picture below?
Conductivity
Viscosity
Hardness
Malleability
8
What relative charge do we use to represent a single electron?
depends on size of the electron
negative 1
neutral charge
positive 1
9
What are rows and columns called in the periodic table, respectively?
Atomic Numbers, Mass Numbers
Periods, Groups
Groups, Periods
Metals, Nonmetals
10
How many valence electrons are there in the element Chlorine?
7
17
8
1
11
Kinetic Theory of a liquid??? Particles have....
no attractive forces, particles have defined order
attractive forces, keeps particles in a defined order
attractive forces, particles can flow to new locations
no attractive forces, random/constant particle motion
12
What physical property is a ratio its mass and volume?
Hardness
Viscosity
Density
Malleability
13
Energy levels of an atom are the possible energies an atom can have. Where is the energy?
In the stable nucleus
In the moving electrons
Totally outside the atom
In the neutral, neutrons
14
Why does the Sodium atom have a positive charge after it gave away an electron?
The Chlorine atom wants to give back an electron
The Na atom wants to give away a proton
The Na atom has one more proton than electrons
The Na atom has one more electron than protons
15
What classification of matter is shown in the following picture:
Heterogeneous Mixture
Homogeneous Mixture
Deposition
Suspension
16
What is the atomic number of Carbon, and how many neutrons does it have?
12.011, 6.011
6, 6
6, 6.011
12, 6
