2 years ago

As the first five elements in Group 14 are considered in order from top to bottom, there are changes in both the

Chemistry

1 answer:

aleksandrvk [35]2 years ago

4 0

Answer:

Explanation:

beacause in both the electronegativity values and number of first she'll electrons

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An unknown compound has the following chemical formula:

Softa [21]

Answer:

Formula of the compound = $P_2O_5$

Explanation:

Given,

No. of mole of O = 8.20 mol

No. of mole of P = 3.30 mol

Chemical formula = $P_2O_x$

Ratio of P and O = $\frac{2}{x}$

$\frac{2}{x} =\frac{3.3}{8.20} \\x \times 3.3 = 8.20 \times 2\\x = \frac{8.20 \times 2}{3.3} \\x=4.9969\\ = 5$

formula of the compound = $P_2O_5$

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2 years ago

What do you think would happen to a rock after billion years?

ANEK [815]

Answer:

Explanation:

It probably would have been broken down to smaller pieces and spread out around the world. Hope this help! :)

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3 years ago

Why are the three atoms are isotopes of magnesium

LenKa [72]

Answer:

Magnesium is a naturally ubiquitous; (appearing & found evrywhere) element and has three naturally occurring stable isotopes, 24Mg, 25Mg and 26Mg, with relative abundance of 78.99%, 10.00% and 11.01%, respectively.

However, they differ only because a 24Mg atom has 12 neutrons in its nucleus, a 25Mg atom has 13 neutrons, and a 26Mg has 14 neutrons.

Explanation:

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2 years ago

Write the chemical equation for the following reaction The elements sodium and chlorine combine to yield the compound sodium chl

Shkiper50 [21]

Answer:Na2S04 + HCl gives

NaCl + H2So4

Explanation:

Displacement reaction

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3 years ago

If you move an object from the base of a mountain to the top of the mountain what happens to its mass and weight

sdas [7]

Answer:

nothing

Explanation:

aslong as nothing falls off fhen the mass and weight wont change

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3 years ago