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2 years ago

Air tends to move from _____.

Chemistry

2 answers:

Mnenie [13.5K]2 years ago

8 0

Answer: Option (a) is the correct answer.

Explanation:

It is known that equator is closer to the sun, therefore, region around the equator is warm. As a result, air near the equator is also warm.

Hence, molecules of air expand more rapidly whereas air near the poles is cold as poles are away from the sun.

Thus, we can conclude that air tends to move from the equator to the poles.

beks73 [17]2 years ago

4 0

A: The Equator To The Poles

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eduard

Answer:

Explanation:

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2 years ago

A student measured the mass of some sodium chloride for a lab. the lab called for 6.25 g (the accurate measurement ) , but the s

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Answer:

The answer is

$\huge 4\%$

Explanation:

The percentage error of a certain measurement can be found by using the formula

$P(\%) = \frac{error}{actual \: \: number} \times 100\% \\$

From the question

actual mass = 6.25 g

error = 6.25 - 6 = 0.25

So we have

$p(\%) = \frac{0.25}{6.25} \times 100$

We have the final answer as

Hope this helps you

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2 years ago

an element x has two naturally occurring isotopes: X-79 (abundance+50.69%, mass +78.918amu) and X-81 (abundance+49.31% mass+80.9

Lana71 [14]

The answer would be B. Brimone. I had the same question before, but let me know if it is not right. Cause certain schools have the same questions but different answers for them.

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2 years ago

A 3.50 g sample of rice is burned in a bomb calorimeter containing 1680 g of water. The temperature of the water increases from

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Answer:

3.58 x 10^4 J

Explanation:

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2 years ago

The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide. what is this distance in cen

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<span>pm stands for picometer and picometers are units which can be used to measure really tiny distances. One picometer is equal to 10^{-12} meters. We know that one centimeter is equal to 10^{-2} m so there are 10^2 cm per meter. We can change the distance d = 115 pm to units of centimeters. d = (115 pm) x (10^{-12}m / pm) x (10^2 cm / m) d = 115 x 10^{-10} cm = 1.15 x 10^{-8} cm The distance in centimeters is 1.15 x 10^{-8} cm</span>

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2 years ago