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3 years ago

Name some gaseous element in unpolluted air ?

2 answers:

8 0

Oxygen because trees release oxygen. Carbon dioxide because we release it when wr breathe out. Nitrogen because the atmosphere contains a certain amount of it.

Temka [501]3 years ago

5 0

Nitrogen oxygen and argon

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ehidna [41]

Answer:

MAGNESIUM

Explanation:

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3 years ago

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HELP ME ASAP!

guajiro [1.7K]

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Answer: Families move away from shorelines.

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3 years ago

How are the reactants represented in the chemical equation for photosynthesis? 6co2 o2 6co2 6h2o c6h12o6 6o2 c6h12o6 6h2o

Vika [28.1K]

The reactants of photosynthesis are represented by $6CO_2$ and $6H_2O$ .

<h3>Photosynthesis</h3>

It is a reaction through which green plants make use of inorganic products such as water and carbon dioxide in the presence of solar radiation to make sugar. Oxygen is liberated as a by-product.

The equation of the reaction is represented by:

$6CO_2 + 6H_2O --- > C_6H_{12}O_6 + 6O_2$

Thus, the reactants are represented by $6CO_2$ and $6H_2O$ respectively.

More on photosynthesis can be found here: brainly.com/question/1388366

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4 0

2 years ago

Four girls share 10 cookies equally.How many cookies does each friend get

8090 [49]

10 divided by 4 = 2.5

each girl gets 2.5 cookies

7 0

4 years ago

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One of the reactions used to inflate automobile air bags involves sodium azide (NaN₃).

AleksandrR [38]

Answer:

161.54 g of N₂

Explanation:

The balanced equation for the reaction is given below:

2NaN₃ —> 2Na + 3N₂

Next, we shall determine the mass of NaN₃ that decomposed and the mass of N₂ produced from the balanced equation. This is illustrated below:

Molar mass of NaN₃ = 23 + (3×14)

= 23 + 42 = 65 g/mol

Mass of NaN₃ from the balanced equation = 2 × 65 = 130 g

Molar mass of N₂ = 2 × 14 = 28 g/mol

Mass of N₂ from the balanced equation = 3 × 28 = 84 g

SUMMARY:

From the balanced equation above,

130 g of NaN₃ decomposed to produce 84 g of N₂.

Finally, we shall determine the mass of N₂ produced by the decomposition of 250 g of NaN₃. This can be obtained as follow:

From the balanced equation above,

130 g of NaN₃ decomposed to produce 84 g of N₂.

Therefore, 250 g of NaN₃ will decompose to produce

= (250 × 84)/130 = 161.54 g of N₂

Thus, 161.54 g of N₂ were obtained from the reaction.

6 0

3 years ago