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Tju [1.3M]
2 years ago
9

A mass of 3.6g of magnesium reacts in excess chlorine to form a chloride, if the mass of the chloride is 14.25g, find the formul

a of the chloride formed​
Chemistry
1 answer:
mario62 [17]2 years ago
6 0

Answer:

MgCl2

Explanation:

From the question given,

Mass of Mg = 3.6g

Mass of the chloride = 14.25g

Note: the chloride contains Mg and Cl

Mass of Cl = Mass of chloride — Mass of Mg

Mass of Cl = 14.25 — 3.6 = 10.65g

Now we can easily obtain the formula of chloride as follow:

Mg = 3.6g

Cl = 10.65g

Divide by their molar mass

Mg = 3.6/24 = 0.15

Cl = 10.65/35.5 = 0.3

Divide by the smallest

Mg = 0.15/0.15 = 1

Cl = 0.3/0.15 = 2

Therefore, the formula of chloride is MgCl2

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B. hydrochloric acid and lithium hydroxide

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2 years ago
What is the total number of electrons in a<br> Mg2+ ion?(1) 10 (3) 14<br> (2) 12 (4) 24
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5 0
3 years ago
A balloon is filled to a volume of 1.50 L with 3.00 moles of gas at 25 °C. With pressure and temperature held constant, what wil
Ludmilka [50]

Answer:

Volume : 1.25 L

Explanation:

We are given here that the volume ( V_1 ) = 1.50 Liters, the initial moles ( held at 25 °C ) = 3.00 mol, and the final moles ( n_2 ) = 3.00 - 0.5 = 2.5 mol. The final mol is calculated given that 0.50 mol of gas are released from the prior 3.00 moles of gas.

Volume ( V_1 ) = 1.50 L,

Initial moles ( n_1 ) = 3.00 mol,

Final Volume ( n_2 ) = 3.00 - 0.5 = 2.5 mol

Applying the combined gas law, we can calculate the final volume ( V_2 ).

P_1V_1 / n_1T_1 = P_2V_2 / n_2T_2 - we know that the pressure and temperature are constant, and therefore we can apply the following formula,

V_1 / n_1 = V_2 / n_2 - isolate V_2,

V_2 = V_1 n_2 / n_1 = 1.50 L * 2.5 mol / 3.00 mol = ( 1.5 * 2.5 / 3 ) L = 1.25 L

The volume of the balloon will be 1.25 L.

6 0
3 years ago
Select all possible answers:
Dafna11 [192]

Answer:

c and d are correct

Explanation:

In A, false because in Valence Electrons, the more the valences, the more stable an atom is.

In B, false because atoms cannot readily gain or lose valence electrons as the number of valence electrons is determined by the column they are in.

In C, true because the more the valence electrons, the more the stability of an atom.  

In D, true as electron placing is important and the reactivity of an atom is important.

So C and D are true!

7 0
2 years ago
Read 2 more answers
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