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When looking at a chemical equation, which side of the yield sign would you find the reactants?
a phase change
magnesium nitrate Mg(NO3)2
O=C=O
The substances that are present at the start of a chemical reaction.
exothermic reactions
moving
left
atoms
In a chemical reaction, what are the reactants?
a phase change
magnesium nitrate Mg(NO3)2
O=C=O
The substances that are present at the start of a chemical reaction.
exothermic reactions
moving
left
atoms
Which of the following are COMPOUND?
a phase change
magnesium nitrate Mg(NO3)2
O=C=O
The substances that are present at the start of a chemical reaction.
exothermic reactions
moving
left
atoms
Which of the following is NOT an indication of a chemical reaction?
a phase change
magnesium nitrate Mg(NO3)2
O=C=O
The substances that are present at the start of a chemical reaction.
exothermic reactions
moving
left
atoms
The kinetic theory of matter states that substances are made up of constantly ___________________ particles.
a phase change
magnesium nitrate Mg(NO3)2
O=C=O
The substances that are present at the start of a chemical reaction.
exothermic reactions
moving
left
atoms
Carbon dioxide is a molecule that is formed from 2 atoms of oxygen and 1 atom of carbon. It has 2 double bonds. Which of the following shows a carbon dioxide atom?
a phase change
magnesium nitrate Mg(NO3)2
O=C=O
The substances that are present at the start of a chemical reaction.
exothermic reactions
moving
left
atoms
All matter is made of invisible particles called
a phase change
magnesium nitrate Mg(NO3)2
O=C=O
The substances that are present at the start of a chemical reaction.
exothermic reactions
moving
left
atoms
What kind of chemical reactions give off energy.
a phase change
magnesium nitrate Mg(NO3)2
O=C=O
The substances that are present at the start of a chemical reaction.
exothermic reactions
moving
left
atoms
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