3 years ago

19) Which one of the following statements describes a chemical property of hydrogen gas?

Chemistry

1 answer:

Rom4ik [11]3 years ago

3 0

B) hydrogen gas burns in air.

explanation: the rest are physical properties.

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Balancing Chemical Equations & Identifying Chemical Reactions

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The answer is 17 and a half

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3 years ago

At what temp will a gas be at if you allow it to expand from an original 456 mL to 65°C to 3.4 L

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We use the gas law named Charle's law for the calculation of the second temperature. The law states that,
V₁T₂ = V₂T₁
Substituting the known values,
(0.456 L)(65 + 273.15) = (3.4 L)(T₁)
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3 years ago

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Which ion in the ground state has the same electron configuration as an atom of

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Explanation:

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3 years ago

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Lina20 [59]

Answer:

100.8 °C

Explanation:

The Clausius-clapeyron equation is:

$ln\frac{P_{1} }{P_{2}} =$ -Δ $\frac{H_{vap}}{r} (\frac{1}{T_{2}}-\frac{1}{T_{1}} )$

Where 'ΔHvap' is the enthalpy of vaporization; 'R' is the molar gas constant (8.314 j/mol); 'T1' is the temperature at the pressure 'P1' and 'T2' is the temperature at the pressure 'P2'

Isolating for T2 gives:

$T_{2}=(\frac{1}{T_{1}} -\frac{Rln\frac{P_{2}}{P_{1}} }{Delta H_{vap}}$

(sorry for 'deltaHvap' I can not input symbols into equations)

thus T2=100.8 °C

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What is the empirical formula for a compound that is 82.2% nitrogen and 17.8% hydrogen?

Stolb23 [73]

Empirical formula=CH3

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