Carboxylic acids and alcohols have higher boiling point
than other hydrocarbons due to their polarity and from the fact that they form
very strong intermolecular hydrogen bonding. This is due to the large
difference in their electronegativity that forms between the oxygen and the
hydrogen atom.
I'd say the answer is D because they need to intake and keep as much water as possible.
Carbon monoxide is produced in an engine
when incomplete combustion happened. In a combustion engine intake valve, it
combines the fuel and air (nitrogen and oxygen) and when spark plug ignites it
pushes the piston downwards. After that piston will push itself upward and
pushes the air that was generated by the combination of those components in the
exhaust valve. This is a repeated cycle which keeps the engine running. In a
perfect combustion process the air being released are carbon dioxide, water and
nitrogen. But when an incorrect ratio of the combination of fuel and air in the
engine is processed, carbon monoxide is being generated.
SO₂ is made from 1 S atom and 2 O atoms.
SO₂ → S + 2O
The stoichiometric ratio between SO₂ and O atom is 1 : 2.
Hence,
moles of SO₂ = (moles of O atoms) / 2
= 3.8 mol / 2
= 1.9 mol
Hence, moles of SO₂ is 1.9 when there are 3.8 moles of O atoms.
Answer:
The answer to your question is Cr₂O₃ + 3Mg ⇒ 2Cr + 3MgO
Explanation:
Data
Unbalanced chemical reaction
Cr₂O₃ + Mg ⇒ Cr + MgO
Reactants Elements Products
2 Cr 1
3 O 1
1 Mg 1
Balanced chemical reaction
Cr₂O₃ + 3Mg ⇒ 2Cr + 3MgO
Reactants Elements Products
2 Cr 2
3 O 3
3 Mg 3
Now the reaction is balanced
