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Lerok [7]
3 years ago
9

PLEASE HELP URGENT ( photo included)

Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
4 0

Answer:

B

Explanation:

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Balance the redox reaction equation (occurring in acidic solution) and choose the correct coefficients for each reactant and pro
algol13
Balanced chemical reaction: 
PbO₂<span>(s) + Sn(s)+ 4H</span>⁺(aq) → Pb²⁺(aq) + Sn²⁺(aq) + 2H₂O<span>(l).
Oxidation half-reaction: Sn </span>→ Sn²⁺ + 2e⁻.<span>
Reduction half-reaction: PbO</span>₂ + 4H⁺ + 2e⁻ → Pb²⁺ + 2H₂O.
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Oxidation is increase of oxidation number, reduction is decrease of oxidation number.
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4 years ago
PLEASE HELP ASAP!
Airida [17]

Answer:

Direct relationship

Explanation:

I took the test. Good luck!

7 0
3 years ago
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This is the question!!!
artcher [175]

Answer:

I think it's G

Explanation:

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3 years ago
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Chemical energy is<br> energy that is
Flauer [41]
Stored in bonds of chemical compounds is the right answer
4 0
3 years ago
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At 517 mm Hg and 24 °C, a sample of gas occuples a volume of 95 ml. The gas is transferred to a 225-ml flask and the temperature
vodomira [7]

Answer:

P_2=194.78mmHg

Explanation:

Hello,

In this case, we employ the combined ideal gas law in order to understand the volume-gas-pressure behavior as shown below:

\frac{P_1V_1}{T_1}= \frac{P_2V_2}{T_2}

Hence, solving for the final pressure P2, we obtain (do not forget temperature must be absolute):

P_2=\frac{P_1V_1T_2}{V_2T_1}=\frac{517mmHg*95mL*(-8.0+273.15)K}{(24+273.15)K*225mL}\\ \\P_2=194.78mmHg

Best regards.

7 0
4 years ago
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