Answer:
- NH₄CN,
- NH₄ClO₃,
- (NH₄)₂SO₃,
- NH₄H₂PO₄.
- Al(CN)₃,
- Al(ClO₃)₃,
- Al₃(SO₃)₃,
- Al(H₂PO₄)₃.
Explanation:
Cations (positive ions) and anions (negative ions) combine to form ionic compounds. The charge of each ion is stated as the superscript in its formula.
The final compounds should be neutral (not carrying charge.) For that to happen, the ions should combine at a ratio that allows their charges to balance.
By convention, in chemical formula of ionic compounds, cations are written before anions.
<h3>Example: Al³⁺ and SO₃²⁻</h3>
The charge on an Al³⁺ cation is +3. The charge on a SO₃²⁻ anion is -2.
Start by finding the least common multiple of the absolute value of the charges (drop the negative sign in front of the charge.)
.
The number of Al³⁺ ions in a formula unit of this compound will be equal to
.
Similarly, the number of SO₃²⁻ ions in a formula unit of this compound will be equal to
.
If a polyatomic ion (an ion with more than one atoms in it) appears more than once in the formula, enclose it in brackets and write the number of its occurrence outside the bracket.
.
Apply this rule to find the formula of other compounds. Additionally, keep in mind that if the charge on the cation and the anion is the same, each should occur only once in the formula.
Answer:
in the ground near the poles hope that helps
1 lb=453.592 grams
So he gained 453.592 pounds
Answer:
FOUR HYDROGEN ATOMS
Explanation:
Two C atoms, four H atoms, and two O atoms can also be arranged to form a methyl formate, which is used in manufacturing, as an insecticide, and for quick-drying finishes. Methyl formate molecules have one of the oxygen atoms between the two carbon atoms, differing from the arrangement in acetic acid molecules.