Alsup's Chem 1st Sem ReviewPT 1: Question Preview (ID: 3097)

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Density is found by dividing_________
a) area by mass
b) mass by area
c) mass by volume
d) volume by mass

Dalton's atomic theory included which idea?
a) All atoms of all elements are the same size
b) Atoms of different elements always combine in one-to-one ratios
c) Atoms of the same element are always identical
d) Individual atoms can be seen with a microscope

Which field of science studies the composition and structure of matter?
a) geology
b) physics
c) biology
d) chemistry

Which of the following is a physical change?
a) evaporation
b) explosion
c) corrosion
d) rotting of food

Which of the following was a major contribution to chemistry by Antoine Lavoisier?
a) He developed the science of alchemy
b) He demonstrated the presence of phlogiston in air
c) He showed that oxygen is required for material to burn
d) He formed explanations based on nothing

Which state of matter has a definite volume and takes the shape of its container?
a) solid
b) liquid
c) gas
d) both b and c

All of the following are physical properties of matter EXCEPT
a) mass
b) color
c) melting point
d) ability to rust

Which of the following is NOT an example of matter?
a) air
b) heat
c) smoke
d) water vapor

Which of the following is true about homogeneous mixtures?
a) kThey are known as solutions
b) they consist of 2 or more phases
c) They have compositions that never vary
d) They are always liquids

Which of the following is a homogeneous mixture
a) beef stew
b) salt water
c) sand and water
d) soil

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