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3 years ago

Which of the following is one way that land contributes to production?

Chemistry

2 answers:

Phantasy [73]3 years ago

8 0

Answer : Option B) Energy from the environment fuels production.

Explanation : Environmental fuels can be produced from lands and contribute towards production. The land can contribute for the production of a Biogas plant and help in generating energy from the plant. It uses mainly decaying matter and household wastes which are decomposed and then produce methane gas is then connected to the household kitchens.

marysya [2.9K]3 years ago

6 0

B is correct for apex

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A 58.33-g sample of milk of magnesia, Mg(OH)2, always contains 24.31g of magnesium, 32.00g of oxygen, and 2.02g of hydrogen. Fin

ASHA 777 [7]

The mass percentage of each element in the milk of magnesia is, 41.68% Mg, 54.86% Oxygen, and 3.46% Hydrogen elements

Give the total mass of a sample of milk of magnesia Mg(OH)₂ as 58.33 g

We are to calculate the percentage by mass of each element

$\% mass =\frac{mass \ of \ element}{mass \ of \ sample} \times 100$

For Magnesium:

Mass of magnesium = 24.31g

$\% mass \ of \ Mg = \frac{24.31}{58.33} \times 100\\ \% mass \ of \ Mg =\frac{2431}{58.33} \\ \% mass \ of \ Mg = 41.68\%$

For oxygen element:

Mass of oxygen = 32.00g

$\% mass \ of \ O_2 = \frac{32}{58.33} \times 100\\ \% mass \ of \ O_2 =\frac{3200}{58.33} \\ \% mass \ of \ O_2 = 54.86\%$

For the hydrogen element

Mass of hydrogen = 2.02g

$\% mass \ of \ H_2 = \frac{2.02}{58.33} \times 100\\ \% mass \ of \ H_2 =\frac{202}{58.33} \\ \% mass \ of \ H_2 = 3.46\%$

Hence the mass percentage of each element in the milk of magnesia is, 41.68% Mg, 54.86% Oxygen, and 3.46% Hydrogen elements.

Learn more here: brainly.com/question/20065048

5 0

3 years ago

Los neutrones tienen carga eléctrica———-y masa de ——una

3241004551 [841]

Answer:

thanks for your points

God bless you ALWAYS

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at pa brainlest answer please

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3 years ago

Tính nồng độ của các ion trong dung dịch CA (OH)2 0.7M

Maurinko [17]

Answer:

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Burning magnesium is introduced into steam

qaws [65]

Answer:

It produces magnesium oxide and hydrogen gas.

Explanation:

When magnesium burns with steam it produces magnesium oxide which is white in color and hydrogen gas. When magnesium burns, it mixes with the oxygen present in the air produces magnesium oxide in powder form. Magnesium react with oxygen by giving two electrons present in its valance shells while the oxygen needs two electron for completing their valance shell and becomes stable.

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