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100
identify a substance that can be decomposed by a chemical change
What is zinc oxide,water
100
heat is measured in units of
What is joules
100
the equaton to find joules is
What is q=mcDELTAt
100
matter that has a uniform and a definite shape
What is substance
100
difference between exothermic and endothermic
What is exothermic chemicals release energy temp. increases endothermic chemicals absorbs energy temp decreases
200
why is saltwater classified as a homogeneous mixture
What is the salt is evenly mixed through the water
200
a reaction that absorbs heat energy is known as
What is exothermic
200
m= c= t=
What is mass 4.18 specific heat of water change in temp
200
indefinite shape and definite volume
What is liquid
200
physical blend of 2 or more components
What is mixture
300
temperature is a measure of a substances...
average kinetic energy
300
how many reference points do u need to make a thermometer? name them?
What is 2. freezing point and boiling point
300
heat is measured with an instrument called a
What is calorimeter
300
has a definite shape and definite volume
What is solid
300
substances that contain 2 or more elements chemically combined in a fixed proportion can be broken down by chemical means
What is a compound
400
identify 2 properties of water
What is boiling point is 100c freezing 0c
400
identify a substance that cannot be decomposed by a chemical change
What is any element
400
a calorimeter consists of 2 parts.
What is an insulated cup filled with water and a thermometer
400
the amount of space an object takes up
What is volume
400
simplist form of matter,unique properties. cannot be broken downdown by chemical means
What is a element
500
burning and rusting are examples of what type of change
What is chemical change
500
what type of mixture is soil
What is hoogeneous
500
anything that has mass and occupies space
What is matter
500
the amount of matter an object contains
What is mass
500
indefinite shape and indefinate volume
What is gas
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