This is the process in which atoms are rearranged to produce new substances.
What is a chemical reaction?
100
This is an expression that uses symbols to show the relationship between the starting substances and the sbustance that are produced during a chemical reaction.
What is chemical equation?
100
This sign of a chemical reaction has bubbling.
What is production of gas?
100
As surface area increases, __________ increases making the particles collid more.
What is reaction rate?
100
____H2 + _____O2 --> _____ H2O
What is __2__H2 + _____O2 --> __2___ H2O
200
This is a reaction that releases energy.
What is exothermic?
200
This is the substance that participates in the chemical reaction.
What is reactants?
200
This sign of a chemical reaction sometimes occurs when two liquids mix together.
What is formation of a precipitate?
200
As concentration increases, reaction rate will ________.
What is increase?
200
____Na + ____O2 --> ____Na2O
What is __4__Na + ____O2 --> __2__Na2O
300
Exothermic reactions release energy in these forms.
What is light and heat energy?
300
This is the substance that is formed in a reaction.
What is products?
300
The luminol and oxidizer when mixed together have this sign of a chemical reaction.
What is change in color?
300
an example of how temperature affects the rate of reaction.
What is glow sticks?
300
_____Fe + ____H2O --> ____Fe3O4 + ____H2
What is ___3__Fe + ___4_H2O --> ___Fe3O4 + __4__H2
400
This reaction absorbs energy.
What is endothermic?
400
the --> in the chemical equation is called
What is yeild?
400
Temperature is involved in this sign of chemical reactions.
What is change in energy?
400
This is a substance that changes the rate of a chemical reaction without being used up or changed.
What is catalyst?
400
____Al + ____ O2 --> ____O2 + ____Al2O3
What is __4__Al + __4__ O2 --> ____O2 + _2___Al2O3
500
This reaction feels hot to the touch.
What is exothermic?
500
This chemical reaction feels cold to the touch.
What is endothermic?
500
Glow sticks have these signs of a chemical reaction.
What is change in color and change in energy (light)
500
_________ is the amount of one sbustance dissolved in another substance.