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Post Intro to Chemistry
By Heidi Nock
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Last updated over 6 years ago
12 questions
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Question 1
1.
Which of the following is an element
salt
water
oxygen
air
Question 2
2.
The smallest particle of an element that retains all of the properties of that element is called
electron
atom
molecule
nucleus
Question 3
3.
In order to calculate the density of an object
mutiply the length times width times height
the product of the mass and the volume
the volume divided by the mass
the mass divided by the volume
Question 4
4.
Which of the following is a compound
LiO
2
Xe
Na
B
Question 5
5.
The smallest particle of a compound that retains all of the properties of that compound is called
atom
proton
molecule
element
Question 6
6.
Which of the following is an example of a chemical reaction. Check all that apply
Burning wood
Exploding firework
Metal rusting
Cutting the lawn
Question 7
7.
If the density of 10g of water is 1g/ml What is the density of 100g of water?
1g/ml
10g/ml
100g/ml
1000g/ml
Question 8
8.
Which of the following is not part of an atom
neutron
electron
cell
proton
Question 9
9.
How many protons are in an atom of Hydrogen
2
1
3
4
Question 10
10.
How many molecules are in 3CaCO
3
3
6
9
27
Question 11
11.
Which of the following are categorized as a mixture
air
CO
2
saltwater
Helium
Question 12
12.
Which of the following can be separated by physical means
element
compound
mixture