Write the formulas of the compounds formed by nh4+ with the following anions: cn−, clo3−, so32−, h2po4−. express your answers as chemical formulas separated by commas. use the given order of anions.

2)

write the formulas of the compounds formed by al3+ with the following anions: cn−, clo3−, so32−, h2po4−.

express your answers as chemical formulas separated by commas. use the given order of anions.

The formula of the ionic compounds formed when ions combine depends on the magnitude of charge or valency on each of the combining ions.

For an ionic compound, the formula of the compound shows us the ratio of ions in a formula unit of the compound.

We must note that this formula is reflective of the magnitude of charges or valency carried by each of the ions in the formula.

With , the compounds formed are as follows;

NH4CN, NH4ClO3, (NH4)2SO3, NH4H2PO4

With the compounds form are;

Al(CN)3, Al(ClO3)3, Al2(SO3)3, Al(H2PO4)3

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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.

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.)

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The number of Al³⁺ ions in a formula unit of this compound will be equal to

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Similarly, the number of SO₃²⁻ ions in a formula unit of this compound will be equal to

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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.

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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: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

just did the assignment and the answer was #1 +2 n