3 years ago

Why is it usually warmer at Earth’s equator than at its poles?

Chemistry

1 answer:

MissTica3 years ago

8 0

Answer:

the equator is closer to the sun

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Difference between element and radical

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A radical is a group of atoms behaving as a unit in a number of compounds where as an element is a species of atoms having the same number of protons in their atomic nuclei.

Explanation:

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If 600.0 ml of air at 20.0 c is heated to 60.0L , what will be its volume

Deffense [45]

P1v1/t1 = p2t2/t2

p is constant
v1=600, t1 =20c=293K
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3 years ago

1 liter is equal to milliliters

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Which best explains how photosynthesis is helpful to humans? It reduces the amount of harmful rays released by the sun. It incre

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Answer:I believe that the answer is c

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A researcher dilutes 30.0 ml of ethanol to 300.0 ml with distilled water. what is the percentage concentration by volume of the

Len [333]

Answer: 9.09 %

Explanation:

To calculate the percentage concentration by volume, we use the formula:

$\text{Volume percent of solution}=\frac{\text{Volume of solute}}{\text{Volume of solution}}\times 100$

Volume of ethanol (solute) = 30 ml

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Volume of solution= volume of solute + volume of solution = 30+ 300 = 330 ml

Putting values in above equation, we get:

$\text{Volume percent of solution}=\frac{30}{30+300}\times 100=9.09\%$

Hence, the volume percent of solution will be 9.09 %.

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3 years ago

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