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Tasya [4]
3 years ago
13

What would be the right answer?

Chemistry
2 answers:
KengaRu [80]3 years ago
4 0

Answer:

5 is the answer since they are asking for pair. And 3 pairs in the triple bond

padilas [110]3 years ago
3 0

Answer:hydrogen=1

carbon=3

total=2h+c=2×1+3=5

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What is the molar volume of a gas at standard temperature and pressure?
Andrej [43]

Answer: The molar volume of any gas at standard pressure and standard temperature is 22.4 liters per mole.

Explanation:The ideal gas law is PV=nRT

P is pressure and if we consider standard pressure, then we have 1.00 atm.

V is volume and that is what we are trying to solve.

n is the number of moles, which is 1.00 moles since we are trying to determine the volume of a gas in one mole.

R is the ideal gas constant which equals

0.0821 (Liters x atmospheres)/(mole x kelvin)

T is the standard temperature which is 273 kelvin.

Rearrange the equation to solve for volume.

V = nRT/P

V = (1.00 mol)(0.0821 L atm/mol K)(273 K)/ 1.00 atm

V = 22.4 L

4 0
3 years ago
What is the name of CaCO2
weqwewe [10]
Calcium--Cobalt(1/2)
8 0
3 years ago
Aluminum oxide breaks down into it elemental components when electric current is applied.
Sav [38]

Answer:

The primary use of aluminum oxide is the manufacture of aluminum metal. When an electric current is passed through molten (melted) aluminum oxide, the compound breaks down to form aluminum metal and oxygen gas.

Explanation:

8 0
2 years ago
How do you tell how many electrons an element wants to gain or lose?
valkas [14]

How does the law of conservation of mass apply  to this reaction: C2H4 + O2 → H2O + CO2?

6 0
3 years ago
What is the percent by mass of oxygen in carbon dioxide (CO2)? Use mc008-1. Jpg. 27. 29% 57. 12% 72. 71% 79. 99%.
castortr0y [4]

The percent by mass of oxygen in carbon dioxide (CO_2) is 72.71%.

<u>Scientific data:</u>

  • Molar mass of oxygen gas = 32 g/mol.
  • Molar mass of carbon = 12 g/mol.

To calculate the percent by mass of oxygen in carbon dioxide (CO_2):

First of all, we would calculate the molar mass of carbon dioxide (CO_2);

CO_2 = 12 +(16\times 2)\\\\CO_2 = 12 +32\\\\CO_2 = 44\;g/mol

For the percent by mass of oxygen:

O_2 = \frac{Mass\; of \;O_2}{Mass\; of \;CO_2} \times 100

Substituting the parameters into the formula, we have;

O_2 = \frac{32}{44} \times 100\\\\O_2 = 0.7271 \times 100

Percent mass of oxygen = 72.71%

Read more on percent mass here: brainly.com/question/15182450

5 0
3 years ago
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