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gregori [183]
3 years ago
11

When calcium (Ca) is mixed with hydrochloric acid (HCl), a single replacement reaction occurs. What will be the product or produ

cts of the reaction? a.CaCl + H2
b.CaCl2
c.Ca + HCl
d.CaCl2 + H2
Chemistry
2 answers:
antiseptic1488 [7]3 years ago
8 0
The answer is C.) Ca + HCl
Sever21 [200]3 years ago
8 0

Answer:

The correct answer is option d: CaCl2 + H2

Explanation:

Hello!

Let's solve this!

When the Ca + HCl is joined there is a replacement reaction in which Ca takes the place of H and to balance loads, we need two atoms of Cl.

The resulting reaction is CaCl2 + H2

The complete reaction is

Ca + 2HCl ---> CaCl2 + H2

We conclude that the correct answer is option d: CaCl2 + H2

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Answer:

The volume of air at where the pressure and temperature are  52 kPa, -5.0 ºC is 3.64 m^3.

Explanation:

The combined gas equation is,

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where,

P_1 = initial pressure of gas = 104 kPa

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T_1 = initial temperature of gas = 21.1^oC=273+21.1=294.1K

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\frac{104 kPa\times 2.0m^3}{294.1 K}=\frac{52 kPa\times V_2}{268 K}

V_2=3.64 m^3

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