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Andrew [12]
3 years ago
5

determine the type of the following chemical reaction: Mg(s) + 2HCl(aq)——-> H2(g) + MgCl2(aq) a. single replacement reaction

b. decomposition reaction c. combination reaction d. double replacement reaction
Chemistry
1 answer:
kumpel [21]3 years ago
4 0

Answer:

a. single replacement reaction

Explanation:

Mg(s) + 2HCl(aq)——-> H2(g) + MgCl2(aq)

Mg replaces H, so this is a single replacement reaction.

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3 years ago
About 55L of a gas in a flexible container is under a pressure of 3.2 atm and at a temperature of 520K. What is the new volume o
vampirchik [111]

Answer:

30.62 L

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 55 L

Initial pressure (P₁) = 3.2 atm

Initial temperature (T₁) = 520 K

Final temperature (T₂) = 760 K

Final pressure (P₂) = 8.4 atm

Final volume (V₂) =?

The final volume of the gas can be obtained as follow:

P₁V₁ / T₁ = P₂V₂ / T₂

3.2 × 55 / 520 = 8.4 × V₂ / 760

176 / 520 = 8.4 × V₂ / 760

Cross multiply

520 × 8.4 × V₂ = 176 × 760

4368 × V₂ = 133760

Divide both side by 4368

V₂ = 133760 / 4368

V₂ = 30.62 L

Therefore, the new volume of the gas is 30.62 L

7 0
3 years ago
Is there any easy tip to balance the eauation.
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Answer:

Explanation:

You just have to see the REACTANTS and PRODUCTS and look how much molecules are there and accordingly put numbers.

Eg:4Fe+3O2--------->2Fe2O3

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