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?
A metal and non-metal form this type of compound.
What is an ionic compound?
This was an element that gained electrons and now has a negative charge.
What is an anion?
energy + water -> hydrogen + oxygen
... is an example of this type of reaction.
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 displacement reaction?
DOUBLE JEOPARDY!!!!!!!!!!!!!
Breaking down the chemical composition. Often times more products than reactants.
What is a decomposition reaction?
A molecule consisting of two atoms. Ex: O2 or H2
What is diatomic?
1. Word equations
2. Skeleton equations
3. Balanced word equations
What are 3 ways in which chemical equations can be represented?
Balance the following chemical reaction:
H2 + NaCl --> HCl + NaH
H2 + NaCl --> HCl + NaH
DOUBLE JEOPARDY!!!!!!!!!
An expression in which symbols and formulas are used to represent a chemical reaction.
A chemical equation
Means “different”, Does not look the same throughout, Can be layered
What is a Heterogeneous Mixture?
State the Law of Conservation of Mass.
What is that matter can not be created or destroyed in a chemical reaction?
When balancing an equation, these numbers can not be changed.
What is a subscript?
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?
The reaction 2HgO ---> 2Hg + O is an example of this type of reaction.
What is decomposition?
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?
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?
ammonia + hydrogen chloride -> ammonium chloride
... is an example of this type of reaction.
What is a synthesis reaction?
Rearranging the chemical composition. Often times the same or fewer products than reactants.
What is a Combining Reaction?
Balance the reaction: Na + H2O --> NaOH + H2
What is 2Na + 2H2O --> 2NaOH + H2
A precipitate often forms in these types of reactions.
What is a double displacement reaction?