Signs of Reaction
Types of Reaction
Balance the Equation
Chemical Vocab
How Fast
100
If you put aluminum foil in copper sulfate, it makes copper. The sign you would see is this.
What is color change to brown.
100
When two compounds combine and make carbon dioxide and water, it is this type of reaction.
What is combustion
100
If there is a 3 in front of H20, there are this many oxygens.
What is three
100
The things that come out of a reaction are called:
What are products.
100
Speeding up the particles so they react faster is done by:
What is heating a reaction.
200
If you add HCl to magnesium metal, it will make hydrogen gas. The sign you would see is this.
What is fizzing.
200
If a metal reacts with a salt, and replaces the metal of the salt it is this type of reaction. Na + AgCl -----> Ag + NaCl
What is Single Replacement
200
If you put a 4 in front of H2O, there are this many hydrogens.
What is eight.
200
Energy needed to get a reaction going is:
What is activation energy.
200
Besides heating, another way to speed up particles would be:
What is stir or shake them.
300
If you put two clear liquids together and they form a solid, the solid is called this.
What is a precipitate.
300
When two elements go together to form a compound, it is this kind of reaction. Na + Cl -----> NaCl
What is Combination Reaction
300
___CaCl2 + ___H2O ---> ___ CaO + ___ HCl A coefficient 2 needs to go in front of this compound.
What is HCl
300
Something that can help get reactants together, but is not part of the reaction is called this:
What is a catalyst.
300
Crushing a reactant can have this affect on a reaction.
What is speed it up.
400
Most combustion reactions have both of these as a sign of the reaction.
What are light and heat.
400
When a compound breaks up into its parts it is this kind of reaction.
What is decomposition.
400
___C3H8 + ___O2 ---> ___ CO2 + ___H2 The four numbers needed to balance this equation are:
What is 1,3,3,4
400
The elements or compounds that go into a reaction are these:
What are reactants.
400
Putting more of a reactant can speed it up because:
What is it has a higher concentration and more chance to collide and react.
500
Rotting food in the refrigerator has this sign of chemical change.
What is new odor ( or new color)
500
This is reaction is a: Al F3 + Pb I2 ---> Al I3 + PbF2
What is Double Replacement
500
The law that makes us have to balance equations is this:
What is the law of conservation of matter (mass)
500
When a reaction feels cold it is taking in or absorbing energy and is known as this.
What is Endothermic.
500
The reason we put food in the refrigerator or freezer that has to do with chemical reactions is this.
What is cold will slow down the reaction of spoiling.
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