Chemistry Reactions & Stoichiometry Quiz

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Test your chem know-how on reactions and weights.

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Ryker Watson

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Froggy Jumps Chemistry Reactions & Stoichiometry QuizVersión en línea Test your chem know-how on reactions and weights. por Ryker Watson 1 Which component of air reacts when a hydrocarbon burns? a Argon b Nitrogen c Oxygen 2 When a hydrocarbon burns in air, a component produced is ________. a Carbon dioxide b Water c Oxygen 3 Which reaction is NOT a synthesis (combination) reaction? a C + O2 → CO2 b 2CH4 + 4O2 → 2CO2 + 4H2O c 2Mg + O2 → 2MgO 4 Automobile airbags involve which type of reaction? a Combustion reaction b Single replacement reaction c Decomposition reaction 5 Which of the following are combustion reactions? 1 and 4 a 1) CH4 + O2 → CO2 + H2O; 2) CaO + CO2 → CaCO3 b 2) CaO + CO2 → CaCO3; 3) PbCO3 → PbO + CO2 c 1) CH4 + O2 → CO2 + H2O; 4) CH3OH + O2 → CO2 + H2O 6 The molecular weight of nitrobenzene (C6H5NO2) is approximately? a 123.11 amu b 109.10 amu c 107.11 amu 7 The molecular weight of acetic acid (CH3CO2H), rounded to the nearest integer, is? a 48 amu b 60 amu c 44 amu 8 The formula weight of calcium nitrate (Ca(NO3)2), rounded to one decimal, is? a 204.2 amu b 102.1 amu c 164.0 amu 9 The mass percent of carbon in methane (CH4) is approximately? a 74.87% b 92.26% c 25.13% 10 One million argon atoms equals roughly how many moles? a 1.7 × 10^-18 mol b 6.02 × 10^23 mol c 3.0 mol

Froggy Jumps

Chemistry Reactions & Stoichiometry QuizVersión en línea

Test your chem know-how on reactions and weights.

por Ryker Watson

Which component of air reacts when a hydrocarbon burns?

Argon

Nitrogen

Oxygen

When a hydrocarbon burns in air, a component produced is ________.

Carbon dioxide

Water

Oxygen

Which reaction is NOT a synthesis (combination) reaction?

C + O2 → CO2

2CH4 + 4O2 → 2CO2 + 4H2O

2Mg + O2 → 2MgO

Automobile airbags involve which type of reaction?

Combustion reaction

Single replacement reaction

Decomposition reaction

Which of the following are combustion reactions? 1 and 4

1) CH4 + O2 → CO2 + H2O; 2) CaO + CO2 → CaCO3

2) CaO + CO2 → CaCO3; 3) PbCO3 → PbO + CO2

1) CH4 + O2 → CO2 + H2O; 4) CH3OH + O2 → CO2 + H2O

The molecular weight of nitrobenzene (C6H5NO2) is approximately?

123.11 amu

109.10 amu

107.11 amu

The molecular weight of acetic acid (CH3CO2H), rounded to the nearest integer, is?

48 amu

60 amu

44 amu

The formula weight of calcium nitrate (Ca(NO3)2), rounded to one decimal, is?

204.2 amu

102.1 amu

164.0 amu

The mass percent of carbon in methane (CH4) is approximately?

74.87%

92.26%

25.13%

One million argon atoms equals roughly how many moles?

1.7 × 10^-18 mol

6.02 × 10^23 mol

3.0 mol

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Chemistry Reactions & Stoichiometry Quiz

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Chemistry Reactions & Stoichiometry QuizVersión en línea

por Ryker Watson

Which component of air reacts when a hydrocarbon burns?

When a hydrocarbon burns in air, a component produced is ________.

Which reaction is NOT a synthesis (combination) reaction?

Automobile airbags involve which type of reaction?

Which of the following are combustion reactions? 1 and 4

The molecular weight of nitrobenzene (C6H5NO2) is approximately?

The molecular weight of acetic acid (CH3CO2H), rounded to the nearest integer, is?

The formula weight of calcium nitrate (Ca(NO3)2), rounded to one decimal, is?

The mass percent of carbon in methane (CH4) is approximately?

One million argon atoms equals roughly how many moles?

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