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Reaction Rates
Chemistry characters
Key terms
Combusting chemicals
Chemical reactions
100
increasing the amount of a reactant
What is concentration?
100
ingredients of a chemical reaction
What are reactants?
100
when 2 liquids create a solid
What is precipitate?
100
a burning reaction involving oxygen
What is combustion?
100
phenol red is an indicator for this substance
What is carbon dioxide?
200
breaking a solid into tiny pieces
What is increasing surface area?
200
new substances formed in a chemical reaction
What are products?
200
invisible structure holding elements together in a compound
What is chemical bond?
200
a reaction where elements are put together to form compounds
What is synthesis?
200
formula for baking soda contains these elements
What is sodium, hydrogen, carbon, and oxygen?
300
a chemical used to speed up a reaction
What is a catalyst?
300
this occurs when calcium chloride mixes with water
What is produces heat/exothermic?
300
short way to show a reaction using symbols
What is a chemical equation?
300
a reaction where elements switch places in the equation
What is replacement?
300
the total # of atoms in Calcium Chloride
What is 3?
400
the minimum amount of energy needed to start a reaction
What is activation energy?
400
a reaction that absorbs heat
What is endothermic?
400
# placed in front of a compound to balance an equation
What is a coefficient?
400
a reaction where compounds break down into simpler substances
What is decomposition?
400
the arrow in a chemical equation means this
What is yields?
500
chemical used to decrease the rate of a reaction
What is an inhibitor?
500
the 5 characteristics of a chemical reaction
What is color change, temperature change, gas produced, smell and new substance?
500
# below an element to show how many atoms are present
What is a subscript?
500
the 2 products of a combustion reaction
What is carbon dioxide and water?
500
the rate of reactions in the human body can be increased by these
What are enzymes?