The correct options are option B and D, that is, wind power and geothermal energy.
The form of energy which is gathered from renewable resources is known as renewable energy. This form of energy gets restocked on a human timescale like wind, sunlight, tides, waves, rain, and geothermal heat.
Renewable energy usually provides energy in four essential fields, that is, air and water heating/cooling, electricity generation, rural energy services, and transportation.
Answer:
D. reducation of cold-related deaths
Explanation:
CO2 had nothing to do with coldness.
- CO2 would increase water pollution, ocean acidification, and logging therefore D. is the only answer that would fit.
Answer:
0.06457g of H₂
Explanation:
2Al(s) + 6H₂O(l) + 2KOH(aq) → 2K[Al(OH)₄](aq) + 3H₂(g)
Based on the equation 2 moles of Al produce 3 moles of hydrogen.
First, we need to convert mass of Al to moles and then with the chemical equation find moles and mass of hydrogen:
<em>Moles Al (Molar mass: 26.982g/mol):</em>
1.15g Al * (1mol / 26.982g) = 0.04262 moles Al
<em>Moles H₂:</em>
0.04262 moles Al * (3 moles H₂ / 2 mol Al) = 0.06393 moles H₂
<em>Mass hydrogen (Molar mass: 1.01g/mol):</em>
0.06393 moles H₂ * (1.01g/mol) =
<h3>0.06457g of H₂</h3>
