Question

in the chemical formula mgbr₂, what is the name of the anion component? 7 points
your answer

when naming a binary ionic compound, the name of the anion (the nonmetal) always ends in what suffix? 7 points
your answer

what is the chemical formula for the ionic compound formed between calcium (ca) and bromine (br)? 7 points
your answer

determine the name of the binary ionic compound with the chemical formula li₂s. 7 points
your answer

which is the correct name for the compound al₂o₃?
○ aluminum(iii) oxide
○ aluminum oxygen
○ dialuminum trioxide
○ aluminum oxide

Explanation:

First Question:

Step1: Identify the compound and ions

The formula is \( \text{MgBr}_2 \). Magnesium (\( \text{Mg} \)) is a metal (cation, \( \text{Mg}^{2+} \)), Bromine (Br) is non - metal (anion).

Step2: Determine the anion name

For binary ionic compounds, the anion (non - metal) is named by taking the root of the non - metal name and adding the suffix -ide. Bromine becomes bromide.

Step1: Recall binary ionic compound naming rules

In binary ionic compounds, the anion (non - metal) part of the name has the suffix -ide. For example, in \( \text{NaCl} \) (sodium chloride), chlorine (non - metal) becomes chloride.

Step1: Determine the charges of ions

Calcium (Ca) is in group 2, so it forms \( \text{Ca}^{2+} \) ions. Bromine (Br) is in group 17, so it forms \( \text{Br}^- \) ions.

Step2: Balance the charges

To form a neutral compound, the number of positive and negative charges must be equal. Let the formula be \( \text{Ca}_x\text{Br}_y \). The charge balance equation is \( 2x=y\times1 \). The smallest integers that satisfy this are \( x = 1 \) and \( y=2 \). So the formula is \( \text{CaBr}_2 \).

Answer:

bromide

Second Question: