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Physical Science
Physical Science
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Nature of Science, chemistry
Flashcards
42 cards
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Practice quiz
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Questions
42
Answers
1
Adding a solute to a solvent will
Lower the freezing point
Lower the boiling point
Raise the freezing point
Have no affect
2
Fusion is when
2 nuclei fuse into 1
1 nuclei fuses into 2
1 nuclei splits into 2
3
During fission what is given off?
Radiation
Radioactive bacteria
Larger molecules
4
Valence electrons are found in the cloud
Nowhere
Floating between levels
Farthest from the nucleus
Nearest the nucleus
5
Name HCl
Hydrogen Chloride
Hydrogen chloroiodide
Hydrogen Chlorine
Hydride chloride
6
When the beaker becomes COLD to the touch the reaction is:
Nuclear
Physical change
Exothermic
Endothermic
7
Who stated the the nucleus was positive with random electrons.
Bohr
Dalton
Thompson
Rutherford
8
Which gas law says temperature and volume increase together?
Gay-Lussac
Charles’
Rodney’s
Bolye’s
9
Substances on the LEFT side of the chemical reaction are
Precipitates
Reactants
Coefficients
Products
10
Noticing that sugar tastes sweet is a(n)...
Quantitative observation
Inference
Qualitative observation
Hypothesis
11
Gay-Lussac’s law says temperature increases as pressure increases.
True
False
12
A change that produces one or more news substances is ...
Magic
Physical change
Chemical change
13
A chemical bond formed when 2 atoms SHARE electrons.
Covalent
Crystalline
Metallic
Ionic
14
By adding salt to water the boiling point
Increases
Stays the same
Decreases
15
ThiNGS THAT can be on the test that were not on this review...
States of matter (solid, liquid, gas)
Scientists (atom is structure or PTE)
Reading a pH scale
King Henry or Algebraic math
16
A positive ion forms when an atom
Self destructs
Gains an electron
Loses an electron
17
This is used to slow the reaction rate
Inhibitor
Enzyme
Fuel
Catalyst
18
Sugar and salt are examples of
Mixtures
Atoms
Compounds
Elements
19
Which is a physical change?
Dissolving salt
Burning paper
Digesting sugar
Exploding fire crackers
20
This group of non-metals are highly reactive
Alkali metals
Lanthanides
Halogens
Noble Gasses
21
Compounds that contain carbon and hydrogen are called
Hydrocarbons
Inorganic
Acids
Bases
22
According to Boyle’s Law as volume drops pressure drops.
False
True
23
State of matter that has a definite shape and volume
Liquid
Solid
Plasma
Gas
24
Physical Science is made up of ...
Chemistry
Biology and physics
Physics
Chemistry and physics
25
Substance that changes color according to pH is
An indicator
Magical
An inhibitor
A catalyst
26
A scientific law is a close agreement between experts and is also reviseable.
False
True
27
Minimum amount of energy required to start a reaction
Exothermic energy
Threshold
Endothermic energy
Chemical energy
28
A theory is a large body of information that is made up of well-tested, verified hypotheses.
False
True
29
Metals are located where on the periodic table?
The far right
They aren’t on the Periodic Table
The left
30
In sugar water the sugar is the
Solvent
Solute
31
Fission happened when
2 nuclei combine
1 nuclei splits into several
Radioactive bacteria digest food
32
Carbohydrates, lipids, proteins, and nucleic acids are all
Minerals
Hydrocarbons
Bad for you
Halogen, alkali metals, and lanthanides
33
What type of reaction is: Zn + LiF -> Li +ZnF
Decomposition
Single replacement
Double replacement
Synthesis
34
What ion does a BASE form in water?
OH- and H+
It doesn’t form an ion
H+
OH-
35
A non-polar molecule has
Equal sharing of electrons
Unequal sharing of electrons
Slightly charged areas
36
The opposite of melting or changing from liquid to solid ...
Freezing
Sublimation
Evaporation
Condensation
37
These elements don’t form compounds
Transition metals
Noble Gasses
Alkali metals
Halogens
38
Mixing a strong ACID with a strong BASE (neutralization)
An acid
Water and salt
Carbonated water
A base
39
These CANNOT be chemically broken down anymore
Solutions
Mixtures
Compounds
Elements
40
What ion forms when ACIDS mix with water?
None form
OH-
Both
H+
41
When atoms are shared unequally in a covalent bond
Ionic
No polar
Polar
Polyatomic
42
A mixture is made of 2 or more substances that are not chemically combined
False
True
