Chemical Formulas

Chemical Formulas

Assessment

Flashcard

Chemistry

10th - 11th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

Student preview

quiz-placeholder

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using symbols for the elements and numerical subscripts.

2.

FLASHCARD QUESTION

Front

What does the subscript in a chemical formula indicate?

Back

The subscript in a chemical formula indicates the number of atoms of the element present in one molecule of the compound.

3.

FLASHCARD QUESTION

Front

How many atoms of magnesium are in Mg(NO₃)₂?

Back

1

4.

FLASHCARD QUESTION

Front

How many nitrate (NO₃) ions are in Mg(NO₃)₂?

Back

2

5.

FLASHCARD QUESTION

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species (ion) composed of two or more atoms covalently bonded, that can be considered as a single unit.

6.

FLASHCARD QUESTION

Front

How many ammonium (NH₄) ions are in (NH₄)₃PO₄?

Back

3

7.

FLASHCARD QUESTION

Front

What does the dot in CuSO₄⋅5H₂O signify?

Back

The dot signifies that the compound CuSO₄ is associated with 5 water molecules, indicating it is a hydrate.

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?