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Atoms, Elements, Molecules, And Compounds 1
Test Description: This game will help you review learning goal #1 of Unit 1: Photosynthesis, Respiration, and Energy.
Instructions: Answer all questions to get your test result.
1) What is an atom?
A
a particle about the size of a cell
B
smallest particle of an element
C
particle made up of neutrons and electrons
D
smallest particle of a proton
2) What is a compound?
A
smallest part of an element
B
a pure substance that cannot be broken down by chemical or physical processes
C
particles made of 2 or more different kinds of atoms
D
particles made of 2 or more atoms
3) Which of the following cannot be a compound?
A
glucose sugar
B
carbon dioxide
C
water
D
hydrogen
4) What does the number placed in front of the chemical formula for a molecule stand for?
A
number of atoms of an element
B
none of the above
C
total number of atoms in the molecule
D
number of molecules
5) What do the subscript numbers in a molecule stand for?
A
total number of atoms in the molecule
B
number of atoms of the element to its left
C
number of atoms of the element to its right
D
number of molecules
6) How many atoms of carbon, hydrogen, and oxygen make up glucose sugar?
A
6, 12, 6 respectively
B
3, 6, 3 respectively
C
2, 1. 2 respectively
D
12, 24, 12 respectively
7) Which one of the statements below is true?
A
very few molecules are compounds
B
molecules and compounds are not related
C
all compounds are molecules
D
all molecules are compounds
8) What is a molecule?
A
particles made of 2 or more atoms
B
a pure substance that cannot be broken down by chemical and physical processes
C
particles made of 2 or more different kinds of atoms
D
the smallest particle of an element
9) Which element do water, carbon dioxide, and glucose sugar all have in common?
A
nitrogen
B
carbon
C
oxygen
D
hydrogen
10) How many different kinds of atoms make up glucose sugar?
A
3
B
6
C
2
D
24
*select an answer for all questions
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