Chemistry Ch. 1 Test- Matter Question Preview (ID: 23641)
6th Grade Chemistry.
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How would you calculate the density fo an object?
a) divide its weight by its volume
b) divide its mass by its volume
c) multiply its volume times its mass
d) multiply its weight times its mass
All elements are composed of small particles called
a) atoms
b) mixtures
c) molecules
d) compounds
The density of s clock of wood with a volume if 50 cubic centimeters and a mass of 100 grams is
a) 2 g/cm3
b) 0.5 g/cm3
c) 500 g/cm3
d) 5000 g/cm3
The SI (metric) unit for mass is the
a) ounce
b) pound
c) kilogram
d) liter
The measurement of how much matter an onject contains is its
a) volume
b) mass
c) weight
d) matter
What holds atoms together in a molecule?
a) density
b) gravity
c) phycial bonds
d) chemical bonds
A group of atoms that are joined together and act as a single unit is called a(n)
a) element
b) molecule
c) compound
d) solution
Sugar and salt are examples of
a) atoms
b) mixtures
c) elements
d) pure substances
Which statement was NOt part of Dalton's teory of atoms?
a) atoms can't be broken into smaller pieces
b) all atoms are alike
c) atomes of each element have a unique mass
d) the masses of the elements in a compound are always in constant ratio.
According to Dalton's theory of atoms, all atoms in any element
a) are exactly alike
b) can be broken into smaller pieces
c) are different
d) have a different mass
The first person who came up with the idea of atoms was
a) Dalton
b) Farenheit
c) Asimov
d) Democritus
The measurement of the force of gravity on an object is the object's
a) mass
b) weight
c) volume
d) density
One example of changing a substance chemically is
a) filtering
b) burning wood
c) boiling water
d) crushing a can
Pure substances formed from chemical combinations of two or more different elements are called
a) elements
b) compounds
c) mixtures
d) solutions
Substances that CANNOT be broken down chemically into other substances are
a) elements
b) compounds
c) mixtures
d) solutions
The measurement of how much mass is contained in a given volume is called
a) weight
b) melting point
c) density
d) boiling point
How do liquid water, ice, and water vapor differe from each other?
a) they are different states of matter
b) they are different compounds
c) they are made of different kinds of molecules
d) they are made of different kinds of atoms.
One example of change a substance physically is
a) burning paper
b) baking cookies
c) heating table sugar
d) blending a milkshake
Why might you ned to study at least two or three characteristics before you can accurately identify a substance?
a) All substances have the same melting point
b) many substances share characteristic properties
c) all substances have different boiling points
d) all solids melt at 0 degrees C
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