Writing Formulas

Writing Formulas

10th Grade

6 Qs

quiz-placeholder

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Writing Formulas

Writing Formulas

Assessment

Quiz

Chemistry

10th Grade

Hard

Created by

Sarah Mohamed

FREE Resource

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Ion X has a charge of 2+, and ion Y has a charge of 1−. What is the formula unit of the compound formed from the ions?

XY2

X2Y

XY

X2Y3

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What is the ionic ratio of aluminum to oxygen in the ionic compound aluminum oxide (Al2O3)?

one to three

three to one

two to three

one to two

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

The anion that has the formula ClO is called the

chlorate ion

hypochlorite ion

chloride ion

chlorite ion

4.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What is the formula of calcium phosphate, which is made up of the ions Ca2+ and PO43−?

Ca6PO4

Ca3PO4

Ca3(PO4)2

Ca2(PO4)3

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Which of the following statements is true about the ammonium ion (NH4+) and the phosphate ion (PO43−)?

ammonium: monatomic anion; phosphate: monatomic cation

ammonium: polyatomic cation; phosphate: polyatomic anion

ammonium: monatomic cation; phosphate: monatomic anion

ammonium: polyatomic anion; phosphate: polyatomic cation

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Which of the following gives an incorrect formula? (BONUS QUESTION)

iron(II) sulfite; FeSO3

aluminum phosphate; AlPO4

magnesium hydroxide; Mg(OH)2

silver carbonate; AgCO3