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Alsup's Chem 1st Sem ReviewPT 1
Test Description: Review of Gen Chem concepts for 1st semester
Instructions: Answer all questions to get your test result.
1) Density is found by dividing_________
A
volume by mass
B
mass by volume
C
area by mass
D
mass by area
2) Dalton's atomic theory included which idea?
A
All atoms of all elements are the same size
B
Atoms of the same element are always identical
C
Individual atoms can be seen with a microscope
D
Atoms of different elements always combine in one-to-one ratios
3) Which field of science studies the composition and structure of matter?
A
geology
B
chemistry
C
physics
D
biology
4) Which of the following is a physical change?
A
corrosion
B
explosion
C
rotting of food
D
evaporation
5) Which of the following was a major contribution to chemistry by Antoine Lavoisier?
A
He demonstrated the presence of phlogiston in air
B
He formed explanations based on nothing
C
He showed that oxygen is required for material to burn
D
He developed the science of alchemy
6) Which state of matter has a definite volume and takes the shape of its container?
A
both b and c
B
gas
C
solid
D
liquid
7) All of the following are physical properties of matter EXCEPT
A
mass
B
ability to rust
C
melting point
D
color
8) Which of the following is NOT an example of matter?
A
air
B
smoke
C
heat
D
water vapor
9) Which of the following is true about homogeneous mixtures?
A
they consist of 2 or more phases
B
kThey are known as solutions
C
They are always liquids
D
They have compositions that never vary
10) Which of the following is a homogeneous mixture
A
soil
B
salt water
C
sand and water
D
beef stew
*select an answer for all questions
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