M(NaCl)=50.0 g
m(H₂O)=150.0 g
m(solution)=m(NaCl)+m(H₂O)
w(NaCl)=100m(NaCl)/m(solution)=100m(NaCl)/{m(NaCl)+m(H₂O)}
w(NaCl)=100*50.0/(50.0+150.0)=25%
Answer:
The energy decreases as you move from the bottom to the top of the energy pyramid. 90% of the energy entering each step of the pyramid is used up by the consumers, only 10% of the energy get stored. So, when the next level on the pyramid eats them, that 10% gets passed down to them Use the diagram below to answer the question.
Explanation:
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The materials which allow heat to pass through them easily are conductors of heat. For examples,aluminum, iron, and copper.
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Answer:
Set an alarm for five hours after your bedtime.
Go to sleep as usual.
When the alarm goes off, stay up for 30 minutes. Enjoy a quiet activity like reading.
Fall back asleep.
Explanation:
