Element X is a metal with a valency 2, Y is a non-metal with a valency 3. If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.

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Solution

The valency of X is 2. The valency of Y is 3. $Y$ is diatomic so, $Y_{2}$ .
Direct combination:
$3 X + Y_{2} \to X_{3} Y_{2}$

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Element X is a metal with a valency 2, Y is a non-metal with a valency 3. If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.

The valency of X is 2. The valency of Y is 3. Y is diatomic so, Y2.Direct combination:3X+Y2→X3Y2

The valency of X is 2. The valency of Y is 3. $Y$ is diatomic so, $Y_{2}$ .
Direct combination:
$3 X + Y_{2} \to X_{3} Y_{2}$