Chemical Reactions
The number of oxygen atoms in these reactants:
2Pb3(PO4)4 + NH4NO3
What is 35 atoms of oxygen?
In the formula 5CaSO4, this is the number of oxygen atoms.
What is 20?
The number of molecules in the substance 3B2H2.
What is 3?
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!!!!!!!!!!!!!
A type of reaction in which compounds break down into simpler substances, often times more products than reactants.
What is a decomposition reaction?
The amount of barium sulfate created in the reaction show:
Na2(SO4) + BaCl2 --> Ba(SO4) + 2NaCl
(11g) (17g) (?) (19g)
What is 8 grams?
The name of the substance HBr.
What is hydrobromic acid?
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.
What is a chemical equation?
This must occur in a combustion reaction.
What is burning?
A ____ is a substance that when added to water increases the concentration of ___ ions present.
What is acid and H+?
When balancing an equation, these numbers can not be changed.
What is a subscript?
DOUBLE JEOPARDY!!!!!!!!!!!!!
To balance a chemical equation, these are the only things that you can adjust.
the coefficient
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?
Balance this equation:
__CaCl2 + __Na3PO4 -> __Ca3(PO4)2 + __ NaCl
What is
3CaCl2 + 2Na3PO4 -> Ca3(PO4)2 + 6NaCl
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 Synthesis or Combining Reaction?
Balance the reaction: Na + H2O --> NaOH + H2
What is 2Na + 2H2O --> 2NaOH + H2
The type of reaction shown below:
Mg(OH)2 + H2SO4 --> MgSO4 + 2H2O
What is a double displacement reaction?