Answer:
5.0 moles.
Explanation:
- The balanced equation of the reaction between hydrogen and oxgen to produce water is:
<em>H₂ + 1/2O₂ → H₂O.</em>
- It is clear that 1.0 mole of H₂ reacts with 0.5 mole of O₂ to produce 1.0 mole of H₂O.
∴ 2.5 mole of O₂ will react with 5.0 moles of H₂.
- The limiting reactant is O₂ and H₂ is found in excess (1.0 mole more).
From the stichiometry: 2.5 mole of O₂ will react with 5.0 moles of H₂ to produce 5.0 moles of H₂O.
<em>∴ 5.0 moles of water are produced when 6.0 moles of hydrogen gas react with 2.5 moles of oxygen gas</em>
Answer:
Explanation:
30+38
so this is the isosotope of Zn that weighs 68
-so Zn68
Answer:
The answer to your question is below
Explanation:
Material Classification Reason
Crude oil Mixture Because we know that crude oil
is composed of different substances.
Butane Compound Because it is composed of carbon
and hydrogen
Dodecane Compound Because it is composed of carbon
and hydrogen.
Octane Compound Because it is composed of carbon and
hydrogen.
Benzene Compound It is also composed of carbon and
hydrogen.
Gasoline Mixture It is a combination of hydrocarbons
Kerosene Mixture It is a combination of hydrocarbons
Oxygen Element We can find it in the periodic table.
Carbon dioxide Compound It is composed of carbon and oxygen.
Water Compound It is composed of hydrogen and
oxygen.
Answer:
See explanation
Explanation:
A substance is only soluble in water if it is composed of ions or polar groups which are capable of interaction with water.
Salt is composed of ions which are easily solvated by the dipoles of water molecule. Sucrose is composed of polar groups capable of interaction with water. This accounts for the solubility of sucrose (sugar) in water. Sugar is a covalent molecule but is composed of polar groups while salt is composed of ionic bonds.
Hence salt and sugar are both soluble in water for the reasons described above.
