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Leno4ka [110]
2 years ago
11

Which of the following is an example of a compound? A. helium B. water C. hydrogen B. oxygen

Chemistry
2 answers:
34kurt2 years ago
8 0

Answer:

the answer is (B)water

Explanation:

for example,water is a compound of hydrogen and oxygen.each if it molecules contains two hydrogen atoms and oxygen atom

liq [111]2 years ago
7 0

the compound is B.

Water is a compound because it is made up of water molecules.

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3 years ago
Green light has a frequency of 6.01*10^14 Hz. What is the wavelength?
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3 years ago
You have arrived on a planet where S2, not O2, is the gas used as fuel in combustion reactions. When gaseous propane (C3H8) is b
Debora [2.8K]

Answer:

Mass = 53.45 g

Explanation:

Given data:

Mass of propane = 200 g

Mass of S₂ = 75 g

Theoretical yield /Mass of CS₂ = ?

Solution:

Balanced Chemical equation:

C₃H₈ + 5S₂      →    4H₂S + 3CS₂

Number of moles of propane:

Number of moles = mass / molar mass

Number of moles = 200 g/  44.1 g/mol

Number of moles = 4.54 mol

Number of moles of S₂:

Number of moles = mass / molar mass

Number of moles = 75 g/  64.14 g/mol

Number of moles = 1.17 mol

Now we will compare the moles of carbon disulfide with both reactant.

                        S₂             :           CS₂

                         5              :            3

                        1.17           :          3/5×1.17 = 0.702

                       C₃H₈          :            CS₂

                           1             :               3

                        4.54          :              3×4.54 = 13.62 mol

Number of moles of CS₂ produced by S₂ are less so it will limiting reactant and limit the yield of carbon disulfide.

Theoretical yield of carbon disulfide.

Mass = number of moles ×molar mass

Mass = 0.702 mol × 76.14 g/mol

Mass = 53.45 g

8 0
3 years ago
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