Vocab
A reaction in which oxygen reacts to create heat or light.
Combustion Reaction
What is a process that produces chemical change?
A chemical reaction
(s)(l)(g)
Solid liquid and gas
Fill the blank with the correct reactant:
CH4 + _________ → CO2 + 2 H2O
Oxygen O2
In the formula 5CaSO4, this is the number of oxygen atoms.
20
A reaction in which 2 or more substances combine to form a single substance.
Combination Reaction
When liquid turns to solid
physical change
(aq)
dissolved in water
This was an element that gained electrons and now has a negative charge.
anion
During a chemical reaction chemical bonds can be formed when electrons are shared, gained, or lost. T/F
true
A reaction in which 1 substance is turned into 2 or more substances.
Decomposition Reaction
Newspaper burning
chemical change
What are numbers placed before formulas?
Coefficients
AgNO3(aq) + NaCl(aq) -> AgCl(s) + NaNO3(aq)
is an example of this type of reaction.WHICH KIND OF REACTIONS.
double displacement reaction
An increase in temperature does this to a reaction rate is
increases
Atoms of 1 element replace the atoms of a second element.
Single Replacement Reaction
DOUBLE JEOPARDY!!!!!!!!!!!!!
Several types of reactions that ABSORB chemical energy
endothermic reaction
A metal and non-metal form this type of compound.
ionic compound
What is the type of the following chemical reaction?
H2 + O2 -------> H2O
Combination
A DECREASE IN THE SURFACE AREA does this to a reaction rate is
DECREASE
A reaction where the + ions of 2 compounds switch.
Double Replacement Reaction
Several types of reactions that RELEASE chemical energy
exothermic reaction
During a chemical reaction,
A. New elements are produced.
B.elements are destroyed.
C. Atoms are rearranged.
DOUBLE JEOPARDY!!!!!!!!!!!!!
Give three examples that a chemical change has taken place.
temp. change,
color change,
odor change,
formation of a precipitate,
formation of a gas
DOUBLE JEOPARDY!!!!!!!!!!!!!
IF WE ADD A CATALYST TO A REACTION, HOW DOES THE REACTION SPEED CHANGE?
INCREASE