Counting Atoms in Chemical Formulas
Interactive Video
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Medium
Standards-aligned
Ethan Morris
Used 9+ times
FREE Resource
Standards-aligned
Read more
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a coefficient in molecular formulas?
To indicate the physical state of the molecule
To represent different amounts of molecules
To change the chemical properties of the molecule
To identify the type of molecular bonds
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the coefficient in a molecular formula indicate?
Type of chemical reaction
Speed of the reaction
Phase change of the substance
Number of molecules
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are in five molecules of water?
5
10
20
15
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen atoms are present in five molecules of water?
5
20
10
15
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of atoms in five molecules of water?
20
15
25
10
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many carbon atoms are there in four molecules of table sugar?
96
48
24
12
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the total number of hydrogen atoms in four molecules of table sugar.
88
22
176
44
Tags
NGSS.MS-PS1-1
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