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Digiron [165]
4 years ago
12

Earth's original atmosphere probably consisted mostly of which gas?

Chemistry
1 answer:
balandron [24]4 years ago
6 0
D-Carbon Dioxide
Hope this helps :)
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PLEASE HELP WILL GIVE BRAINLIEST!!!
My name is Ann [436]

Answer: It's the anode broski (B)

Explanation: I'm taking the Chem summer course too broski, this was the correct answer. Cheers broski

8 0
3 years ago
Estimate ΔG°rxn for the following reaction at 775 K. 2Hg(g) + O2(g) → 2HgO(s) ΔH°= -304.2 kJ; ΔS° = -414.2 J/K
hichkok12 [17]

Answer:

\Delta G^0_{rxn}=16.81kJ

Explanation:

Hello!

In this case, since the Gibbs free energy of any process is related with the enthalpy change, temperature and entropy change as shown below:

\Delta G^0=\Delta H^0-T\Delta S^0

For a chemical reaction it is simply modified to:

\Delta G^0_{rxn}=\Delta H^0_{rxn}-T\Delta S^0_{rxn}

Thus, since the enthalpy of reaction is given as -304.2 kJ and the entropy as -414.2 J/K (-0.4142 kJ/K), at 775 K the Gibbs free energy of reaction turns out:

\Delta G^0_{rxn}=-304kJ-775K*(-0.4142\frac{kJ}{K} )\\\\\Delta G^0_{rxn}=16.81kJ

Whose result means this is a nonspontaneous reaction.

Best regards!

3 0
3 years ago
What are the empirical formula and empirical formula mass for N2S3
ASHA 777 [7]
What are the options the your question
3 0
4 years ago
Complete the table below by writing the symbols for the cation and anion that make up each ionic compound.
marysya [2.9K]

The ions are as follows;

  • As2O3 -  As^3+, O^2-
  • MnS - Mn^2+, S^2-
  • VCl3 - V^3+, Cl^-
  • NiF2 - Ni^2+,  F^-

<h3>What is a cation and an anion?</h3>

A cation is a positive ion while an anion is a negative ion. Ionic compounds are composed o cations and anions.

The anions and cations in the ionic compounds in the table are shown below;

  • As2O3 -  As^3+, O^2-
  • MnS - Mn^2+, S^2-
  • VCl3 - V^3+, Cl^-
  • NiF2 - Ni^2+,  F^-

Learn more about cations and anions:brainly.com/question/4933048

#SPJ1

6 0
2 years ago
How many molecules are found in 3.4 moles of carbon dioxide?
madam [21]

Answer:

One mole of anything has 6.023 x 10^23 molecules.

That would mean 3.4moles of CO2 have 6.023x 10^23 times 3.0.

So that would be2.04782×10^24 molecules in 3.0 moles of C02.

8 0
3 years ago
Read 2 more answers
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