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Vitek1552 [10]
2 years ago
10

select which of the following correctly represents the BALANCED chemical reaction for the production of HCL gas from its element

s. 1. H2 + Cl2 --> 2HCl. 2. H + Cl --> HCl 3. H + Cl2 --> 2HCl 4. 2HCl --> H2 + Cl2​
Chemistry
1 answer:
bagirrra123 [75]2 years ago
3 0

Answer:

Choices 2 and 4

Explanation:

HCL is formed witthe the elements Hydrogen and Chlorine. Whatever is on the left side of the equation must match up with the right side of the equation.

2. H + Cl --> HCl (we have one hydrogen and one chlorine)

4. 2HCl --> H2 + Cl2 (since the two is distributed to both the H and the Cl, H has 2 and Cl has two on the left side AND on the right side of the equation)

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The density of a substance is 17.5 g/mL. Determine the volume (in mL) of 63.6 g of this substance.​
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<h2>volume = 3.63 mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>Density =  \frac{mass}{volume}</h3>

Since we are finding the volume

Making volume the subject we have

<h3>volume =  \frac{mass}{Density}</h3>

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Substitute the values into the above formula and solve for the volume

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We have the final answer as

<h3>volume = 3.63 mL</h3>

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