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3 years ago

How many bonds does carbon atom form

Chemistry

2 answers:

Neporo4naja [7]3 years ago

6 0

Answer: Four Bonds

Explanation:

coldgirl [10]3 years ago

6 0

A carbon atom can form at max four bonds, for example with Hydrogen. Since carbon has 4 electrons, it needs four more electrons to achieve the noble gas state. Carbon needs four more hydrogens, which has one electron, to bond four bonds

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1. Gases are made up of molecules which are relatively far apart.2. The molecules are in motion at high speeds.3. The molecular

Katen [24]

Answer:

Explanation:

Molecules of a gas are relatively more compressible than those of liquids and solids because they are relatively far apart without any intermolecular forces between them. However, at lower temperature and higher pressure, there is now a significant intermolecular interaction between the gas molecules and they are no longer relatively far apart. Hence they are more compressible than liquids and solids which already possess significant intermolecular interaction and thus a definite volume.

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3 years ago

How can you explain what happened?

galina1969 [7]

Answer:

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3 years ago

Explain why we must balance all chemical equations

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Answer:

The chemical equation needs to be balanced so that it follows the law of conservation of mass.

Explanation:

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3 years ago

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Hydrazine (N₂H₄), a rocket fuel, reacts with oxygen to form nitrogen gas and water vapor. The reaction is represented with the e

Vinvika [58]

At STP one mol weighs 22.4L

Moles of O_2

4.2/22.4
2.1/11.2
0.19mol

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2(0.19)
0.38mol

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2 years ago

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During a laboratory experiment, a 2.36-gram sample of NaHCO3 was thermally decomposed. In this experiment, carbon dioxide and wa

eduard

Answer:

90.7 %

Explanation:

1) Chemical equation (given)

2NaHCO₃ → Na₂CO₃ + H₂CO₃

2) Theoretical yield

a) Convert mass of NaHCO₃ to moles:

n = mass in grams / molar mass
molar mass = 84.007 g/mol
n = 2.36 g / 84.007 g/mol = 0.02809 mol

b) Mole ratio:

2 mol NaHCO₃ : 1 mol H₂CO₃

c) Proportionality:

2 mol NaHCO₃ / mol H₂CO₃ = 0.02809 mol NaHCO₃ / x

⇒ x = 0.2809 / 2 mol H₂CO₃ = 0.01405 mol H₂CO₃

3) Actual yield

a) Mass balance: 2.36 g - 1.57 g = 0.79 g

b) Convert 0.79 g of carbonic acid to number of moles:

n = mass in grams / molar mass

molar mass = 62.03 g/mol

n = 0.79 g / 62.03 g/mol = 0.01274 mol

4) Percentage yield, y (%)

y (%) = actual yield / theoretical yield × 100

y (%) = 0.1274 mol / 0.1405 mol × 100 = 90.68%

The answer must show 3 significant figures, so y(%) = 90.7%.

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3 years ago