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3 years ago

HELP PLEASE I WILL MARK YOU AS A BRAINLIEST

Chemistry

1 answer:

never [62]3 years ago

8 0

Answer:

a food pyramid.

Explanation:

the food pyramid shows how autotrophs are at the bottom and how the top predators are at the top, in this case the eagle.

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What will happen as the South Pole magnet is moved closer and closer to the South Pole of another magnet

mart [117]

Answer:it will be malfunction

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4 years ago

What is the molecular formula of a compound with the empirical formula

ipn [44]

Answer: $C_2H_2O_2$

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

The empirical formula is $CHO$

The empirical weight of $CHO$ = 1(12)+1(1)+1(16)= 29 g.

The molecular weight = 60 g/mole

Now we have to calculate the molecular formula:

$n=\frac{\text{Molecular weight}}{\text{Equivalent weight}}=\frac{60}{29}=2$

The molecular formula will be= $2\times CHO=C_2H_2O_2$

Thus molecular formula will be $C_2H_2O_2$

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3 years ago

In a physical change of matter,

mel-nik [20]

Answer: C. no new substances are formed

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What geological processes form natural gas

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Decomposed organic matter ,mud,silt ,and sand

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What happens when two areas of air have different pressures?

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