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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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1. Starting with 9.3 moles of O 2 , how many moles of H 2 S will be needed and how many moles of SO 2 will
enyata [817]

Answer:

Moles of H₂S needed = 6.2 mol

Moles of SO₂ produced = 6.2 mol

Explanation:

Given data:

Number of moles of O₂ = 9.3 mol

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Moles of SO₂ produced = ?

Solution:

Chemical equation:

2H₂S + 3O₂      →    2SO₂ + 2H₂O

Now we will compare the moles of oxygen with H₂S.

                  O₂             :           H₂S

                    3             :             2

                   9.3            :         2/3×9.3 = 6.2 mol

Now we will compare the moles of SO₂ with both reactant.

                   O₂             :            SO₂

                    3              :               2

                   9.3            :         2/3×9.3 = 6.2 mol      

                 H₂S             :            SO₂

                    2              :               2

                   6.2            :          6.2 mol      

So 6.2 moles of  SO₂ are produced.

         

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3 years ago
Why did the plant that could not photosynthesize stop growing?
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Answer:

Plants get their nutrients from photosynthesis, and those nutrients in turn help them grow. The plant stopped growing because it was unable to obtain its vital nutrients.

Explanation:

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254950m to millimeter
Arte-miy333 [17]
254950000 millimeters
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