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15
×
A chemical reaction is the process of converting _____ to _____.
reactants to products
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boom
Lose 50 points!
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seesaw
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fairy
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25
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thief
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25
15
×
In a chemcial reaction, what happens to the molecules of the reactants?
they are destroyed
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15
×
How can we increase the speed of a collision?
Increasing the temperature, splitting the substance into smaller pieces
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15
×
Name 3 chemcial reactions ( not in your book )
hopefully good job
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15
×
What is conserved in a chemical reaction?
the atoms involved and the mass
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15
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In the formation of hydrochloric acid, what has to happen in order to form the H-Cl molecule?
the Cl-Cl molecules and the H-H molecules must first be broken
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15
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What happens to the atoms of the reactants in a chemical reaction?
They regroup to form new molcules (but first they need to collide)
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10
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What happenes in collision theory?
chemical reactions are produced when the particles of the reactants collide with each other and are broken. The loose atoms rearrange themselves.
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15
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What is very important in determining weather or not a reaction occurs?
The speed of particles
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5
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According to Antoine-Laurent Lavoisier, what stays the same?
mass
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15
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What changes in a chemcial reaction?
the chemical formula of the substance and the number of molecules (sometimes)
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eraser
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magnet
Take 25 points!
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gift
Win 20 points!
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thief
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15
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A collsion is only effective if _____?
the molecules collide at the right orientation and speed
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thief
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25
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gold
Win 50 points!
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gift
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lifesaver
Give 15 points!
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5
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What are the substances called formed in chemical reactions?
products
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