CHEM 48: Do Now! | Chemistry

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CHEM 48: Do Now!

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6th grade

Chemistry

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Slide 1
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CHEM 48: Do Now!
These questions can be used as review questions for Test 3: Lab/Matter/Periodic Table/Atoms
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Question 2
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Q.
What is this state of matter?
answer choices
Solid
Liquid
Gas
Crystal
Solid
alternatives
Liquid
Gas
Crystal
answer explanation
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Question 3
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What is this phase change called?
answer choices
Condensation
Melting
Freezing
Deposition
Condensation
alternatives
Melting
Freezing
Deposition
answer explanation
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Question 4
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What is NOT a characteristic of gasses?
answer choices
Compressible
Volatility
No defined shape but definite volume.
No defined shape, no defined volume.
Compressible
alternatives
Volatility
No defined shape but definite volume.
No defined shape, no defined volume.
answer explanation
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Question 5
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Q.
Check all the boxes that are a pure substance.
answer choices
Molecule
Element
Compound
Mixture
Sodium chloride
Molecule
alternatives
Element
Compound
Mixture
Sodium chloride
answer explanation
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Question 6
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Compounds have two types of atoms bonded together, therefore compounds are mixtures.
answer choices
True
False
True
alternatives
False
answer explanation
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Question 7
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How many core electrons does a chlorine atom have? (Just write the number)
answer
10
10
alternatives
answer explanation
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Question 8
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What is the difference between Carbon-12 and Carbon-14?
answer choices
The number of protons is different
The number of neutrons is different
The number of electrons is different.
The charge is different.
The number of protons is different
alternatives
The number of neutrons is different
The number of electrons is different.
The charge is different.
answer explanation
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Question 9
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What group of elements is known to be the most reactive?
answer choices
Alkali metals
Transitional metals
Halogens
Noble gasses
Alkali metals
alternatives
Transitional metals
Halogens
Noble gasses
answer explanation
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Question 10
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What is the atomic number for Aluminum (Al). You may use a periodic table. (Just write the number)
answer
13
13
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answer explanation
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Question 11
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What kind of substance would have this GHS symbol on it?
answer choices
A toxic substance
A corrosive substance
A radioactive substance
A biohazardous substance
A toxic substance
alternatives
A corrosive substance
A radioactive substance
A biohazardous substance
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Question 12
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What is NOT true about density?
answer choices

$D\ =\ \frac{m}{V}$
It's a chemical property
It's a physical property
A substance with a density greater that 1 g/mL will sink in water
 <math><semantics><mrow><mi>D</mi><mtext> </mtext><mo>=</mo><mtext> </mtext><mfrac><mi>m</mi><mi>V</mi></mfrac></mrow><annotation encoding="application/x-tex">D\ =\ \frac{m}{V}</annotation></semantics></math>D = Vm 
alternatives
It's a chemical property
It's a physical property
A substance with a density greater that 1 g/mL will sink in water
answer explanation
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Question 13
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The separation method that separates by particle size is...
answer choices
Evaporation
Magnetism
Decantation
Filtration
Evaporation
alternatives
Magnetism
Decantation
Filtration
answer explanation
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Question 14
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Use a periodic table. How many protons does an oxygen atom have?
answer
8
8
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answer explanation
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Question 15
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Which of these subatomic particles does not carry a charge?
answer choices
Proton
Neutron
Electrons
Proton
alternatives
Neutron
Electrons
answer explanation
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Question 16
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What would help you most when studying for tests and precomp?
no correct answer
Short videos on specific chemistry topics.
More practice games like Quizizz
A list of topics we discussed with corresponding classes
Short videos on specific chemistry topics.
alternatives
More practice games like Quizizz 
A list of topics we discussed with corresponding classes
answer explanation
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