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Q 1/14
Score 0
A __ is a starting substance in chemical reaction
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catalyst
product
heat
reactant
Q 2/14
Score 0
What is the coefficient on sodium carbonate in the following reaction?
$(NH_4)_2CO_3(aq) + NaOH(aq) →Na_2CO_3(aq) + NH_3(g) + H_2O(l)$
30
1
4
3
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14 questions
Q.
A __ is a starting substance in chemical reaction
1
30 sec
Q.
What is the coefficient on sodium carbonate in the following reaction?
$(NH_4)_2CO_3(aq) + NaOH(aq) →Na_2CO_3(aq) + NH_3(g) + H_2O(l)$
2
30 sec
Q.
A __ is a reaction where a single substance breaks down into to or more simpler substances
3
30 sec
Q.
A(n) __ is a list of metals in order of decreasing reactivity.
4
30 sec
Q.
A __ reaction is one where two compounds "switch" cations.
5
30 sec
Q.
A __ is a new substance formed in a chemical reaction
6
30 sec
Q.
A __ reaction is one where oxygen reacts with other substances forming one or more oxides
7
30 sec
Q.
The symbol Δ in a chemical equation means
8
30 sec
Q.
A catalyst is:
9
30 sec
Q.
When the equation Fe + O2→Fe2O3 is balanced, the coefficient for O2 is:
10
30 sec
Q.
When the following equation is balanced, the coefficient in front of HCl is:
Ba(s) + HCl(aq) →BaCl2(aq) + H2(g)
11
30 sec
Q.
Which of the following statements is incorrect?
12
30 sec
Q.
The equation 2C3H7OH(g) + 9O2(g) →6CO2(g) + 8H2O(g) is an example of which type of reaction?
13
30 sec
Q.
A double-replacement reaction takes place when aqueous K2SO4 reacts with aqueous Pb(NO3)2. You would expect one of the products of this reaction to be:
