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Fynjy0 [20]
3 years ago
15

What do March 21st and September 21st have in common?

Chemistry
1 answer:
pogonyaev3 years ago
5 0

Answer:

The equinoxes are the only time when both the Northern and Southern Hemispheres experience roughly equal amounts of daytime and nighttime. On Earth, there are two equinoxes every year: one around March 21 and another around September 22.

Explanation:

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Explanation:

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6 0
2 years ago
How do the products of chemical reactions compare to their reactants?
LUCKY_DIMON [66]

Answer: The products usually weigh more than the reactants.

Explanation:

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2 years ago
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Katarina [22]

Answer:

B 1,3

Explanation:

Count the atoms on each side of the arrow, they have to be equal

After arrow

2x C

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4x H

Before the arrow

2x C - correct, as it is the only compound with C then there must only be 1 mole of it.

This is also the correct amount of H

We need 6x O total so 6/2 = 3

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7 0
3 years ago
A boy weighs 525 N. What is his mass?
MAXImum [283]

Answer:≈40.8 kg.

Explanation:

4 0
2 years ago
I BET NO ONE KNOWS THIS 10. Which of the following words is closest to the same meaning as hypothesis?
Ivanshal [37]

Answer:

conclusion.

Explanation:

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