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QveST [7]
3 years ago
10

The inner planets—Mercury, Venus, Earth, and Mars—are believed to have been formed by _____.

Chemistry
1 answer:
larisa86 [58]3 years ago
4 0

i believe the answer is B :/

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4NH3+5O2-4NO+6H2O<br>how many moles of NH3 must react to produce 5.0 moles of NO?​
tresset_1 [31]

Answer: 5.0 moles

Explanation:

From the equation, we see that for every 4 moles of ammonia consumed, 4 moles of nitrogen monoxide are produced (we can reduce this to moles of ammonia consumed = moles of nitrogen monoxide produced).

This means that the answer is <u>5.0 mol</u>

7 0
2 years ago
What two days of the
bonufazy [111]
Difference is in the amount
8 0
3 years ago
Which of the following factors decreases the rate of solubility?
belka [17]

Answer:- C. decrease in temperature.

Explanations:- Solubility of a solid increases if the pressure is increased as the high pressure helps the solid to get dissolved in the solvent.

If the surface area of the solute is increased then more and more solute comes into the contact of the solvent and the solubility increases.

If the stirring is increased then it also helps the solute to get dissolved into the solvent.

Solubility of solids is directly proportional to the temperature.

So, if the temperature is decreased then solubility of the solute is also decreased.

5 0
3 years ago
Read 2 more answers
How many electrons would be transferred in either a voltaic or electrolytic cell that uses the following half reactions
omeli [17]

Answer:

Numbers of electrons transferred in the electrolytic or voltaic cell is 6 electrons.

Explanation:

Fe^{3+} (aq) + 3 e^-\rightarrow Fe (s) ,E^o = -0.036 V

Mg^{2+}(aq) + 2 e^- \rightarrow Mg (s),E^o = -2.37 V

The substance having highest positive reduction E^o potential will always get reduced and will undergo reduction reaction.

Reduction : cathode

Fe^{3+} (aq) + 3 e^-\rightarrow Fe (s) ,E^o = -0.036 V..[1]

Oxidation: anode

Mg(s)\rightarrow Mg^{2+}(aq) + 2 e^-,E^o = 2.37 V..[2]

Oxidation reaction occurs at anode and reduction reaction occurs at cathode.

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{red,cathode}-E^o_{red,anode}

E^o_{cell}=-0.036V-(-2.37 V)=2.334 V

The overall reaction will be:

2 × [1] + 3 × [2] :

2Fe^{3+} (aq) + 3Mg(s)+6e^-\rightarrow 2Fe (s)+3Mg^{2+}(aq)+6e^-

Electrons on both sides will get cancelled :

2Fe^{3+} (aq) + 3Mg(s)\rightarrow 2Fe (s)+3Mg^{2+}(aq)

Numbers of electrons transferred in the electrolytic or voltaic cell is 6 electrons.

5 0
4 years ago
C2H6BrCl is a compound. What is the ratio of carbon to bromine atoms in the molecules!
lubasha [3.4K]

Answer:

3  1

Explanation:

3 0
3 years ago
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