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3 years ago

Identify the type of reaction represented by each equation.

Chemistry

2 answers:

MrRissso [65]3 years ago

7 0

Answer : Equation A represents a combination reaction, and equation B represents a combustion reaction.

Explanation :

Equation A : $H_2+Cl_2\rightarrow 2HCl$

In this reaction, hydrogen react with the chlorine to form a single product as hydrogen chloride. So, this reaction is a combination reaction.

Combination reaction : It is a type of chemical reaction in which two or more reactants combine to produce a single product.

Equation B : $CH_4+2O_2\rightarrow CO_2+2H_2O$

In this reaction, methane is a hydrocarbon react with the oxygen to give carbon dioxide and water as a product. So, this reaction is a combustion reaction.

Combustion reaction : A type of chemical reaction where a hydrocarbon molecule react with the oxygen to produces carbon dioxide and water as a product.

Hence, the Equation A represents a combination reaction, and equation B represents a combustion reaction.

My name is Ann [436]3 years ago

7 0

Equation A represents a combination reaction, and equation B represents a combustion reaction. Hope this helps!

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faltersainse [42]

A. The mass of one mole of the virus is calculated by multiplying the mass of a single virus by the Avogadro's number which is equal to 6.022 x 10^23. Performing this operation,

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In correct number of significant figures, the answer would only have to be 5.4 x 10^12 mg.

b. The number of moles of the virus that will have the same mass as the oil tanker is calculated by dividing the mass of the oil tanker by the mass of one mole of the virus. Note that doing division, both would have to have the same units.

n = (3.0 x 10^7 kg) / (5.4 x 10^12 mg)(1 g/1000 mg)(1 kg/1000 g)

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In correct number of significant figures, the answer is 6.0.

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3 years ago

Read 2 more answers

The compound NaCl (salt) has the same properties as sodium (Na) and chlorine (CI) because it is made of both of those elements.

grin007 [14]

Answer:

False.

Explanation:

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In this case since sodium is a soft brilliant metal and chlorine is a green gas at normal conditions, they have totally different properties. Thus, since sodium chloride is also known as the table salt which is present as white crystals we can infer that the compound does not have the same properties, therefore it is false.

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2 years ago

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allochka39001 [22]

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3 years ago

A sample of gas contains 0.1500 mol of HCl(g) and 7.500×10-2 mol of Br2(g) and occupies a volume of 9.63 L. The following reacti

Furkat [3]

Answer:

9.63 L.

Explanation:

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In this case, the undergoing chemical reaction is:

$2HCl(g) + Br_2(g)\rightarrow 2HBr(g) + Cl_2(g)$

So the consumed amounts of hydrochloric acid and bromine are the same to the beginning based on:

$n_{Br_2}^{consumed}=0.1500molHCl*\frac{1molBr_2}{2molHCl}=0.075molBr_2$

In such a way, the yielded moles of hydrobromic acid and chlorine are:

$n_{HBr}=0.1500molHCl*\frac{2molHBr}{2molHCl}=0.1500molHBr \\n_{Cl_2}=0.1500molHCl*\frac{1molCl_2}{2molHCl}=0.075molCl_2$

Thus, the volume of the sample, after the reaction is the same as no change in the total moles is evidenced, that is 9.63L.

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