Chemical Reactions
In a chemical reaction the substances to the right of the arrow are called this/these?
What is/are products?
In the formula 5CaSO4, this is the number of oxygen atoms.
What is 20?
A substance that enters a chemical reaction is called this.
What is a reactant?
DOUBLE JEOPARDY!!!!!!!!!!!!!
Breaking down the chemical composition. Often times more products than reactants.
What is a decomposition reaction?
State the Law of Conservation of Mass.
What is that matter can not be created or destroyed in a chemical reaction?
Which type of equation REQUIRES energy?
What is an example of a decomposition reaction?
DOUBLE JEOPARDY!!!!!!!!!!
A + B -> AB
What is a synthesis reaction?
This type of reaction occurs when an element displaces another element in a compound, producing a new compound and a new element.
What is a single replacement/displacement reaction?
What products are usually formed in a combustion reaction?
CO2 + H2O
This was an element that gained electrons and now has a negative charge.
What is an anion?
Give three examples that a chemical change has taken place.
What is temp. change, color change, odor change, formation of a precipitate, formation of a gas?
Balance the following chemical reaction:
___ Mg + ___ H2O → ___ Mg(OH)2 + ___ H2
___ Mg + _2__ H2O → ___ Mg(OH)2 + ___ H2
NH3 + HCl ->NH3Cl
... is an example of this type of reaction.
What is a synthesis reaction?
What type of reaction is this?
GaF3 + 3 Cs → 3 CsF + Ga
single replacement
Name a metal that Copper can replace in a single replacement reaction.
Mercury, Silver, or Gold
What number can be changed when balancing an equation?
Coeffecient
DOUBLE JEOPARDY!!!!!!!!!!!!!
A solid that forms from a solution during a chemical reaction.
a precipitate
An increase in temperature will usually cause the rate of reaction to ________________.
What is increase?
Balance the reaction: Na + H2O --> NaOH + H2
What is 2Na + 2H2O --> 2NaOH + H2
AgNO3(aq) + NaCl(aq) -> AgCl(s) + NaNO3(aq)
is an example of this type of reaction.What is an example of a double displacement reaction?
Why must chemical equations be balanced?
Law of Conservation of Mass
Mass in = Mass out
What does aqueous mean?
dissolved in water
in solution
predict the products and BALANCE
BaS + PtF2 →
BaF2 + PtS
Solid calcium carbonate (CaCO3) reacts with aqueous hydrochloric acid (HCl) to yield aqueous calcium chloride (CaCl2), carbon dioxide gas (CO2), and liquid water (H2O).
Write the equation.
CaCO3 (s) + HCl (aq) ------> CaCl2 (aq) + CO2 (g) + H2O (l).
Predict the products and Balance
Al(NO3)3 + Ca →
---------------------------------------
NR Al
Ca(NO3)2 Al2
2 Al(NO3)3 + 3 Ca → 3 Ca(NO3)2 + 2 Al