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3 years ago

What is an element?

Chemistry

1 answer:

valentinak56 [21]3 years ago

3 0

Answer:

An element is a substance that is made up of the same kind of atoms and

cannot be broken down into simpler substances by any known chemical means

examples of element are iron boron carbon helium calcium hydrogen etc

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Which of the following would diffuse through a cell membrane the most easily?

ZanzabumX [31]

You didn’t give us the options???

anyways: Water diffusion is called osmosis. Oxygen is a small molecule and it's nonpolar, so it easily passes through a cell membrane. Carbon dioxide, the byproduct of cell respiration, is small enough to readily diffuse out of a cell. Small uncharged lipid molecules can pass through the lipid innards of the membrane.

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Semenov [28]

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3 years ago

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Aleonysh [2.5K]

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3 years ago

Which statement describe compound

Katena32 [7]

Answer:

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Explanation:

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4 years ago

The reactant side of a balanced chemical equation is shown below.

Tresset [83]

Answer: There are 8 hydrogen atoms on the product side in the reaction.

Explanation:

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This law also states that total number of individual atoms on the reactant side must be equal to the total number of individual atoms on the product side.

For the given reaction, the balance chemical equation follows:

$PCl_5+4H_2O\rightarrow H_3PO_4+5HCl$

On reactant side:

Number of Phosphorus atoms = 1

Number of Chlorine atoms = 5

Number of Hydrogen atoms = 8

Number of Oxygen atoms = 4

On Product side:

Number of Phosphorus atoms = 1

Number of Chlorine atoms = 5

Number of Hydrogen atoms = 8

Number of Oxygen atoms = 4

Hence, there are 8 hydrogen atoms on the product side in the reaction.

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3 years ago