1) na2s (aq) + cd(no3)2(aq)→cds (s) + 2nano3(aq) is which type of reaction?
Chemistry, 07.12.2019 06:31 limelight11
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1) na2s (aq) + cd(no3)2(aq)→cds (s) + 2nano3(aq) is which type of reaction?
2) which phrase is the best description of a redox reaction?
a) a reaction in which the exchange of electrons (or oxygen) occurs
b) a reaction in which a precipitate forms as a product
c) a reaction in which two new products are created
d) a reaction that results in the release of heat or light
3) why does the reaction h2o + ag→no reaction not proceed to a product?
a) silver has a lower activity than hydrogen and cannot replace it.
b) silver has a higher activity than hydrogen and cannot replace it.
c) the reaction proceeds too slowly to create products.
d) the reaction cannot occur because water is a reactant.
4) what is the balanced form of the equation c2h6 + o2→co2+h2o ?
a) c2h6 + 3o2→2co2+2h2o
b) c2h6 + 3o2→2co2+3h2o
c) 2c2h6 + 7o2→4co2+6h2o
d) c2h6 + 5o2→3co2+5h2o
5) the equation 2nano3 + cacl2→2nacl+ca(no3)2 is balanced.
how many atoms of sodium (na) are there on either side of the equation?
two
four
one
six
6) agno3(aq)+cu(s)→ag(s)+cu(no3)2(aq) is an example of which type of reaction?
a) double-displacement
b) decomposition
c) redox
d) combustion
7)which example best describes a double displacement reaction?
a)two compounds combine to form one new compound.
b) the ions of two ionic compounds switch places and a gas is formed.
c) one compound breaks down into two different compounds.
d) a compound reacts with oxygen to release a lot of heat.
Answers: 3
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1) na2s (aq) + cd(no3)2(aq)→cds (s) + 2nano3(aq) is which type of reaction?
1) na2s (aq) + cd(no3)2(aq)→cds (s) + 2nano3(aq) is which type of reaction?
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