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musickatia [10]
3 years ago
12

Should carbon dioxide be considered to be a pullutant

Chemistry
1 answer:
Kipish [7]3 years ago
7 0

Answer:

yes, as it helps to increase global warming and it's main cause is deforestation

Explanation:

as carbon dioxide is a greenhouse gas. It helps to increase global warming

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What is the best way to organize desert several several million different types of organisms on earth
SCORPION-xisa [38]

Answer:

The desert should be divided into different types based on its properties. The organisms living in specific type of desert should be named accordingly.

Explanation:

There are usually five major types of desert in the world. Tropical, rainy, semi arid desert, coastal desert and dry desert. There are many different types of organisms living in these deserts. The biodiversity has made it difficult for the humans to analyse and identify the millions of different types. The best way is to organize and name the organisms that live in specific types of deserts.

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2 years ago
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3 years ago
Consider the following reaction: 2CH3OH(g)  2CH4(g) + O2(g) ΔH = +252.8 kJ a) Calculate the amount of heat transferred when 24.
denpristay [2]

<u>Answer:</u>

<u>For a:</u> The amount of heat transferred for the given amount of methanol is 94.6736 kJ.

<u>For b:</u> The mass of methane gas produced will be 10.384 g.

<u>Explanation:</u>

For the given chemical reaction:

2CH_3OH(g)\rightarrow 2CH_4(g)+O_2(g);\Delta H=+252.8kJ

  • <u>For a:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}} ......(1)

Given mass of methanol = 24.0 g

Molar mass of methanol = 32.04 g/mol

Putting values in above equation, we get:

\text{Moles of methanol}=\frac{24.0g}{32.04g/mol}=0.749mol

By Stoichiometry of the reaction:

For every 2 moles of methanol, the amount of heat transferred is +252.8 kJ.

So, for every 0.749 moles of methanol, the amount of heat transferred will be = \frac{252.8}{2}\times 0.749=94.6736kJ

Hence, the amount of heat transferred for the given amount of methanol is 94.6736 kJ.

  • <u>For b:</u>

By Stoichiometry of the reaction:

252.8 kJ of energy is absorbed when 2 moles of methane gas is produced.

So, 82.1 kJ of energy will be absorbed when = \frac{2}{252.8}\times 82.1=0.649mol of methane gas is produced.

Now, calculating the mass of methane gas from equation 1, we get:

Molar mass of methane gas = 16 g/mol

Moles of methane gas = 0.649 moles

Putting values in equation 1, we get:

0.649mol=\frac{\text{Mass of methane gas}}{16g/mol}\\\\\text{Mass of methane}=10.384g

Hence, the mass of methane gas produced will be 10.384 g.

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A solution with a ph of 13 contains what concentration of hydroxyl ions [oh-]?
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Which of the following statements about recycling electronic waste is true?
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Answer:

Explanation:

the correct one is D

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