Question

Consider the hypothetical atom x. if the molecular formula for calcium nitrate is ca(no3)2 and the formula of x chloride is xcl2. what is the molecular formula for x nitrate

Answer 1

X(N03)2

Given: Consider a hypothetical atom x

molecular formula of calcium nitrate = Ca(NO3)2

formula of x chloride is xcl2

molecular formula for x nitrate = ?

• we are first putting calcium with chloride
• on checking calcium on the periodic table we observe it in group 2
• so calcium has two plus charge
• whereas chloride being a halogen it is observed in group 7
• it forms ion with one negative charge which would become CaCl2
• so if we have Ca(NO3)2 and see a Cl2
• with our hypothetical atom x , if the formula of x with chloride as XCl2 then formula with the nitrate is going to be x
• this will be similar to calcium because calcium is just like it when we look at calcium with chloride
• hence when x goes with nitrate it is going to look just like the formula for calcium nitrate
• this gives us the final answer to be X(NO3)2

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