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1)Which sample contains the largest number of ions? Answer 1.5 mol SnCl 2 1.0 mo

ID: 773697 • Letter: 1

Question

1)Which sample contains thelargestnumber of ions? Answer
1.5 mol SnCl2
1.0 mol NaNO3
1.0 mol (NH4)3PO4
1.0 mol Fe(NO3)2
1.5 mol AgNO3

2)Which sample contains the smallest number ofatoms? Answer
1.5 mol NaCl
2.0 mol CH4
1.0 mol H2O
3.0 mol Cl2
2.5 mol Au
  1. 3)The balanced equation given below means:

    CH4 + 2O2 ? CO2 + 2H2O
    Answer
    One molecule of methane reacts with two molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water.
    One gram of methane reacts with two grams of oxygen to produce one gram of carbon dioxide and two grams of water.
    One mole of methane reacts with two moles of oxygen to produce one mole of carbon dioxide and 2 moles of water.
    A, B and C are correct.
    A and C are correct.

    4)A thimble of water contains 4.0 x 1021molecules. The number of moles of H2O is: Answer
    2.4 x 1045
    2.4 x 1023
    6.6 x 10-3
    2.4 x 10-23
    6.6 x 10-23 5)How many grams of fluorine are required to produce 20.0 grams of FeF3from the reaction shown?

    2 Fe + 3F2? 2 FeF3
    Answer
    10.1 g
    20.2 g
    4.49 g
    6.74 g
    5.05 g

    6)How much Ca(NO3)2should be weighed out to have 0.650 mol? Answer
    133 g
    107 g
    165 g
    66.4 g
    97.6 g
    7)A solution containing 145.0 g AgNO3is mixed with a CaCl2solution and 98.4 of AgCl is recovered. Calculate the % yield of the reaction. Answer
    80.44%
    40.16%
    61.99%
    61.11%
    161.3%
    1. 8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
      FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
      2 C (s) + O2(g) ? 2 CO (g)
      2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
      H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
      (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)
1)Which sample contains thelargestnumber of ions? 1.5 mol SnCl2 1.0 mol NaNO3 1.0 mol (NH4)3PO4 1.0 mol Fe(NO3)2 1.5 mol AgNO3

2)Which sample contains the smallest number ofatoms? Answer
1.5 mol NaCl
2.0 mol CH4
1.0 mol H2O
3.0 mol Cl2
2.5 mol Au
  1. 3)The balanced equation given below means:

    CH4 + 2O2 ? CO2 + 2H2O
    Answer
    One molecule of methane reacts with two molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water.
    One gram of methane reacts with two grams of oxygen to produce one gram of carbon dioxide and two grams of water.
    One mole of methane reacts with two moles of oxygen to produce one mole of carbon dioxide and 2 moles of water.
    A, B and C are correct.
    A and C are correct.

    4)A thimble of water contains 4.0 x 1021molecules. The number of moles of H2O is: Answer
    2.4 x 1045
    2.4 x 1023
    6.6 x 10-3
    2.4 x 10-23
    6.6 x 10-23 5)How many grams of fluorine are required to produce 20.0 grams of FeF3from the reaction shown?

    2 Fe + 3F2? 2 FeF3
    Answer
    10.1 g
    20.2 g
    4.49 g
    6.74 g
    5.05 g

    6)How much Ca(NO3)2should be weighed out to have 0.650 mol? Answer
    133 g
    107 g
    165 g
    66.4 g
    97.6 g
    7)A solution containing 145.0 g AgNO3is mixed with a CaCl2solution and 98.4 of AgCl is recovered. Calculate the % yield of the reaction. Answer
    80.44%
    40.16%
    61.99%
    61.11%
    161.3%
    1. 8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
      FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
      2 C (s) + O2(g) ? 2 CO (g)
      2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
      H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
      (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)
2)Which sample contains the smallest number ofatoms? 1.5 mol NaCl 2.0 mol CH4 1.0 mol H2O 3.0 mol Cl2 2.5 mol Au
  1. 3)The balanced equation given below means:

    CH4 + 2O2 ? CO2 + 2H2O
    Answer
    One molecule of methane reacts with two molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water.
    One gram of methane reacts with two grams of oxygen to produce one gram of carbon dioxide and two grams of water.
    One mole of methane reacts with two moles of oxygen to produce one mole of carbon dioxide and 2 moles of water.
    A, B and C are correct.
    A and C are correct.

    4)A thimble of water contains 4.0 x 1021molecules. The number of moles of H2O is: Answer
    2.4 x 1045
    2.4 x 1023
    6.6 x 10-3
    2.4 x 10-23
    6.6 x 10-23 5)How many grams of fluorine are required to produce 20.0 grams of FeF3from the reaction shown?

    2 Fe + 3F2? 2 FeF3
    Answer
    10.1 g
    20.2 g
    4.49 g
    6.74 g
    5.05 g

    6)How much Ca(NO3)2should be weighed out to have 0.650 mol? Answer
    133 g
    107 g
    165 g
    66.4 g
    97.6 g
    7)A solution containing 145.0 g AgNO3is mixed with a CaCl2solution and 98.4 of AgCl is recovered. Calculate the % yield of the reaction. Answer
    80.44%
    40.16%
    61.99%
    61.11%
    161.3%
    1. 8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
      FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
      2 C (s) + O2(g) ? 2 CO (g)
      2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
      H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
      (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)
3)The balanced equation given below means:

CH4 + 2O2 ? CO2 + 2H2O
Answer
One molecule of methane reacts with two molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water.
One gram of methane reacts with two grams of oxygen to produce one gram of carbon dioxide and two grams of water.
One mole of methane reacts with two moles of oxygen to produce one mole of carbon dioxide and 2 moles of water.
A, B and C are correct.
A and C are correct.

4)A thimble of water contains 4.0 x 1021molecules. The number of moles of H2O is: Answer
2.4 x 1045
2.4 x 1023
6.6 x 10-3
2.4 x 10-23
6.6 x 10-23 5)How many grams of fluorine are required to produce 20.0 grams of FeF3from the reaction shown?

2 Fe + 3F2? 2 FeF3
Answer
10.1 g
20.2 g
4.49 g
6.74 g
5.05 g

6)How much Ca(NO3)2should be weighed out to have 0.650 mol? Answer
133 g
107 g
165 g
66.4 g
97.6 g
7)A solution containing 145.0 g AgNO3is mixed with a CaCl2solution and 98.4 of AgCl is recovered. Calculate the % yield of the reaction. Answer
80.44%
40.16%
61.99%
61.11%
161.3%
  1. 8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
    FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
    2 C (s) + O2(g) ? 2 CO (g)
    2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
    H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
    (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)
3)The balanced equation given below means:

CH4 + 2O2 ? CO2 + 2H2O
One molecule of methane reacts with two molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water. One gram of methane reacts with two grams of oxygen to produce one gram of carbon dioxide and two grams of water. One mole of methane reacts with two moles of oxygen to produce one mole of carbon dioxide and 2 moles of water. A, B and C are correct. A and C are correct.

4)A thimble of water contains 4.0 x 1021molecules. The number of moles of H2O is: Answer
2.4 x 1045
2.4 x 1023
6.6 x 10-3
2.4 x 10-23
6.6 x 10-23 5)How many grams of fluorine are required to produce 20.0 grams of FeF3from the reaction shown?

2 Fe + 3F2? 2 FeF3
Answer
10.1 g
20.2 g
4.49 g
6.74 g
5.05 g

6)How much Ca(NO3)2should be weighed out to have 0.650 mol? Answer
133 g
107 g
165 g
66.4 g
97.6 g
7)A solution containing 145.0 g AgNO3is mixed with a CaCl2solution and 98.4 of AgCl is recovered. Calculate the % yield of the reaction. Answer
80.44%
40.16%
61.99%
61.11%
161.3%
  1. 8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
    FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
    2 C (s) + O2(g) ? 2 CO (g)
    2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
    H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
    (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)
4)A thimble of water contains 4.0 x 1021molecules. The number of moles of H2O is: 2.4 x 1045 2.4 x 1023 6.6 x 10-3 2.4 x 10-23 6.6 x 10-23 5)How many grams of fluorine are required to produce 20.0 grams of FeF3from the reaction shown?

2 Fe + 3F2? 2 FeF3
10.1 g 20.2 g 4.49 g 6.74 g 5.05 g

6)How much Ca(NO3)2should be weighed out to have 0.650 mol? Answer
133 g
107 g
165 g
66.4 g
97.6 g
7)A solution containing 145.0 g AgNO3is mixed with a CaCl2solution and 98.4 of AgCl is recovered. Calculate the % yield of the reaction. Answer
80.44%
40.16%
61.99%
61.11%
161.3%
  1. 8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
    FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
    2 C (s) + O2(g) ? 2 CO (g)
    2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
    H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
    (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)
6)How much Ca(NO3)2should be weighed out to have 0.650 mol? 133 g 107 g 165 g 66.4 g 97.6 g 7)A solution containing 145.0 g AgNO3is mixed with a CaCl2solution and 98.4 of AgCl is recovered. Calculate the % yield of the reaction. 80.44% 40.16% 61.99% 61.11% 161.3%
  1. 8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
    FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
    2 C (s) + O2(g) ? 2 CO (g)
    2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
    H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
    (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)
8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
2 C (s) + O2(g) ? 2 CO (g)
2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
(NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l) 8)Which reaction is an example ofbotha precipitationanda neutralization? FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq) 2 C (s) + O2(g) ? 2 CO (g) 2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l) H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l) (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)
1.5 mol SnCl2
1.0 mol NaNO3
1.0 mol (NH4)3PO4
1.0 mol Fe(NO3)2
1.5 mol AgNO3

2)Which sample contains the smallest number ofatoms? Answer
1.5 mol NaCl
2.0 mol CH4
1.0 mol H2O
3.0 mol Cl2
2.5 mol Au
  1. 3)The balanced equation given below means:

    CH4 + 2O2 ? CO2 + 2H2O
    Answer
    One molecule of methane reacts with two molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water.
    One gram of methane reacts with two grams of oxygen to produce one gram of carbon dioxide and two grams of water.
    One mole of methane reacts with two moles of oxygen to produce one mole of carbon dioxide and 2 moles of water.
    A, B and C are correct.
    A and C are correct.

    4)A thimble of water contains 4.0 x 1021molecules. The number of moles of H2O is: Answer
    2.4 x 1045
    2.4 x 1023
    6.6 x 10-3
    2.4 x 10-23
    6.6 x 10-23 5)How many grams of fluorine are required to produce 20.0 grams of FeF3from the reaction shown?

    2 Fe + 3F2? 2 FeF3
    Answer
    10.1 g
    20.2 g
    4.49 g
    6.74 g
    5.05 g

    6)How much Ca(NO3)2should be weighed out to have 0.650 mol? Answer
    133 g
    107 g
    165 g
    66.4 g
    97.6 g
    7)A solution containing 145.0 g AgNO3is mixed with a CaCl2solution and 98.4 of AgCl is recovered. Calculate the % yield of the reaction. Answer
    80.44%
    40.16%
    61.99%
    61.11%
    161.3%
    1. 8)Which reaction is an example ofbotha precipitationanda neutralization? Answer
      FeCl3(aq) + KOH (aq) ? Fe(OH)3(s) + 3 KCl (aq)
      2 C (s) + O2(g) ? 2 CO (g)
      2 H3PO4(aq) + 3 Ca(OH)2(aq) ? Ca3(PO4)2(aq) + 6 H2O (l)
      H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)
      (NH4)2CO3(s) ? 2 NH3(g) + CO2(g) + H2O (l)

Explanation / Answer

1) 1.5 mol SnCl2 ------------
2) 2.5 mol Au -------------------- 3) A and C are correct. -------- 4) 6.6 x 10-3
---------------- 5) 10.1 g -------- 6) 107 g ------- 7) 80.44% ------ 8) H2SO4(aq) + Ba(OH)2(aq) ? BaSO4(s) + 2 H2O (l)

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