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Unit 7 Level 1 (H) Review

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Last updated 5 months ago
10 questions
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Question 1
1.

Question 2
2.

Question 3
3.

Question 4
4.

Question 5
5.

Question 6
6.

Question 7
7.

Question 8
8.

If 21 g of Na reacts with 15 g of Cl2, how much NaCl is made?

Question 9
9.

13 g of methane reacts wit oxygen to produce 22 g of carbon dioxide and 11 g of water. How much oxygen reacted with the methane?

Question 10
10.

When the following equation is balanced, what is the coefficient for HCl?
__Mg + __HCl → __MgCl2 + __H2
6
1
3
4
2
Predict the produ→ *the equation*
__ NaBr + __CaF2 → __NaF + __CaBr2
2 NaBr + 2 CaF2 → 2 FNa + 2 Br2Ca
2 NaBr + 1 CaF2 → 2 NaF + 1 CaBr2
NaBr + CaF2 → NaCa + BrF2
2 NaBr + 1 CaF2 → 1 NaF2 + 1 CaBr
Given the following combustion reaction, after balancing the equation, what is the sum of the coefficients of the reactants and products?
__C2H6 + __O2 → __CO2 + __H2O
15
17
19
21
23
Use the following symbolic equation to determine the word equation:
Cu2SO4 + Sr(C2H3O2)2 → CuC2H3O2 + SrSO4
Copper (II) sulfate + strontium acetate → Copper (II) strontium + acetate sulfate
Copper (I) sulfate + strontium acetate → Copper (I) strontium + acetate sulfate
Copper (I) sulfate + strontium acetate → Copper (I) acetate + strontium sulfate
Copper (II) acetate + strontium sulfate → Copper (II) sulfate + strontium acetate
Which of the following reactions is a combination (synthesis) reaction?
KOH(aq) + HCl(aq) → KCl(aq) + H2O(l)
2H2O(l) → 2H2(g) + O2(g)
AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq)
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l)
Na2O(s) + CO2(g) → Na2CO3(s)
From the given balanced reactants, predict the correctly balanced product.
3 Na + FeBr3 →
NaBr3 + Fe
3 NaFe + Br2
3 NaBr + Fe
NaBr + Fe
What is the missing product for the single replacement reaction?
2 Al + 3 Pb(NO3)2 → 2 Al(NO3)3 + ??
Pb
Pb3
Pb2
3 Pb
Which product is missing from this single replacement reaction?
Cu (s) + H2SO4 (aq) → CuSO4 (aq) + ???
CuO (s)
H (g)
H2 (g)
O2
CO2