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Chemistry Chapter 8
Mjos Spring Final
28
Chemistry
10th Grade
05/03/2011

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Term
In a combustion reaction, one of the reactants is ______
Definition
oxygen
Term
What are the missing coefficients for the skeleton equation: N2+H2=NH3
Definition
1,2,3
Term
What are the correnct formulas and coefficients for the products of this double-replacement reaction?
RbOH+H3PO4= ______
Definition
Rb3PO4+3H2O
Term
What does the arrow (-->) represent
Definition
is formed
Term
Aluminum chloride and bubbles of bydrogen gas are produced when metallic aluminum is placed in hydrochloric acid. What is the balanced equation for this reaction
Definition
2Al+6HCl-->2AlCl3+3H2
Term
In order to predict whether of not a single-replacement reaction takes place, we need to consult a chart which shows the ______
Definition
activity series of metals
Term
What are the missing coefficents for the skeleton equation
Cr(s)+Fe(NO3)2(aq)-->Fe(s)+Cr(NO3)3(aq)
Definition
2,3,3,2
Term
When potassium hydroxide and barium chloride react, porassium chlotide and barium hydroxide are formed. The balanced equation for this reaction is ___
Definition
2KOH+BaCl2-->2KCl+Ba(OH)2
Term
Wha is the balanced equation for the combination reaction that takes place when iron(III) oxide is formed from its constituent elements
Definition
4Fe+3O2-->2Fe2O3
Term
What are the missing coefficients for the skeleton equation
NH3(g)+O2(g)-->N2(g)+H2O(l)
Definition
4,3,2,6
Term
What does the triangle symbol in a chemical equation mean
Definition
Heat is supplied to the reaction
Term
If you rewrite the following equation as a balanced chemical equation, what will that coefficient and symbol for fluorine be?
nitrogen trifluorine --> nitrogen+fluorine
Definition
3F
Term
If a combination reaction takes place between potassium chlorine, what is the product?
Definition
KCl
Term
Chemical Reactions ____
a)occur only in in living organisms
b)create and destroy atoms
c)only occur outside living organisms
d)produce new substances
Definition
d)produce new substances
Term
The symbol of two arrows facing on top of each other facing different directions indicates ______
Definition
that the reaction is reversible
Term
In the chemical equation
H2O2(aq)-->H2O(l)+O2(g)
the H2O2 is a ____
Definition
reactant
Term
A catalyst is ______
Definition
not used up in a reaction
Term
In every balanced chemical equation each side of the equation has the same number of _____
Definition
molecules
Term
Chemical equations much be balanced to satisfy the law of _______
Definition
conservation of mass
Term
An equation in which each side has the same number of atoms of each element is a ______
Definition
balanced equation
Term
A concise representation of a chemical reaction is a ______
Definition
chemical equation
Term
A starting substance in a chemical reaction is the ______
Definition
reactant
Term
A new substance formed in a chemical reaction is the _____
Definition
product
Term
A chemical equation that does not indicate relative amounts of reactants and products is a _______
Definition
skeleton equation
Term
A reaction in which oxygen reacts with another substance, often producing heat or light is a _____
Definition
combustion reaction
Term
A reaction in which a single compound is broken down into simpler substances is a _____
Definition
decomposition reaction
Term
A reaction in which the atoms of one element replace the atoms of a second element is a _______
Definition
single-replacement reaction
Term
a list of metals in order of decreasing reactivity is ____
Definition
activity series of metals
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