Formulae

Formulae

Assessment

Interactive Video

Science, Physics, Chemistry

6th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key characteristic of compounds in terms of their atomic composition?

They consist of atoms in a fixed ratio.

They consist of atoms in a random ratio.

They consist of atoms in a variable ratio.

They consist of atoms in a changing ratio.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the chemical formula NaCl represent?

A compound with two sodium atoms and one chlorine atom.

A compound with one sodium atom and one chlorine atom.

A compound with two sodium atoms and two chlorine atoms.

A compound with one sodium atom and two chlorine atoms.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the compound NaCl, what is the ratio of sodium to chlorine atoms?

2:1

2:2

1:1

1:2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for water?

H2

HO2

H2O

O2H

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many hydrogen atoms are combined with one oxygen atom in a water molecule?

Four

Two

One

Three

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