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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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Brrunno [24]
First calculate for the molar mass of the given formula unit, CaCO₃. This can be done by adding up the product when the number of atom is multiplied to its individual molar mass as shown below.

     molar mass of CaCO₃ = (1 mol Ca)(40 g Ca/mol Ca) + (1 mol C)(12 g of C/1 mol of C) + (3 mols of O)(16 g O/1 mol O) = 100 g/mol of CaCO₃

Then, divide the given amount of substance by the calculated molar mass.
            number of moles = (20 g)(1 mol of CaCO₃/100 g)
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<em>Answer: 0.2 moles</em>
6 0
3 years ago
In the reaction shown above , the?
matrenka [14]

Answer:

I think option (d) is right answer

8 0
3 years ago
What is the total number of ions in one formula unit of (NH4)2CO3?
Len [333]

There are 3  ions in one formula unit of (NH4)2CO3.

Ions present in  Ammonium carbonate.(NH4)2CO3

(NH4)2CO3 is called Ammonium carbonate. The formula indicates that in one mole of ammonium carbonate, There are

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When 1 mole of ammonium carbonate is dissolved in water it gives

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Learn more on (NH4)2CO3 here:brainly.com/question/2272720

4 0
2 years ago
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20 PTS!!
uranmaximum [27]
The correct answer is C because a Controlled Experiment tests only one factor at a time and consists of a control group and one or more experimental groups.
6 0
1 year ago
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Answer:

(D) Neither I nor II

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Hence option D ) is right choice .

8 0
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