- A. is not the correct formula.
Explanations:- Charge for Ba is +2 and charge for O is -2, Here the charges are in equal and opposite so their ratio is 1:1 and hence the formula must be BaO and not .
Rest of the formulas are correct as charge for Ca is +2 and charge for N is -3 . On criss cross we get the formula .
Charge for K is +1 and charge for Cl is -1 and so KCl is correct.
Charge for Li is +1 and that for S is -2. On criss cross we get the formula .
Li charge of 1, CO3 charge of -2, cross the two, should be Li2CO3
The answer is b. MgO2
the correct answer would be squared form
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The correct formula unit should bear correct subscripts coming from the opposite charge of the other ion after the exchange. In this case, Ca2N3 is not correct since Ca has a charge of +2 and N has a charge of -3. Hence the correct should be Ca3N2.
A formula unit in chemistry is the empirical formula of an ionic or covalent material hard compound used as an objective item for stoichiometric calculations. It is the cheapest whole number ratio of ions designed in an ionic compound.
The squared form is not a correct form of the quadratic function.
Given some forms of quadratic equation. we have to choose the form which is not correct of the quadratic equation.
As the general form and the standard form of quadratic equation is
where a,b and c are constant.
Also, the vertex form is
where (a,b) is vertex.
Only the three forms of quadratic equation exist. No other form like squared form exist.
Hence, the squared form is not a correct form of the quadratic function.
indium, and thallium have three electrons i think
a is the answer to this question
For example, this...