Murray Counting Atoms

Interactive Video
•
Science
•
7th Grade
•
Medium
Aimee Murray
Used 6+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When identifying elements in a chemical formula, what is the rule for capitalization?
The first letter of every element symbol is always lowercase.
If an element symbol has only one letter, it is capitalized; if it has two letters, both are capitalized.
The first letter of an element symbol is capitalized, and any subsequent letters for that same element are lowercase.
All letters in an element symbol are always capitalized.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many Oxygen atoms are in this formula?
1
2
3
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many elements are present in this formula?
3
12
6
24
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a subscript number in a chemical formula represent?
The total number of atoms in the entire compound.
The number of atoms of the element written immediately before the subscript.
The number of molecules of the compound.
The charge of the element.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many total atoms are in the formula?
2
3
14
9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chemical formula, what is the effect of a coefficient placed in front of the entire formula?
It only multiplies the first element in the formula.
It indicates the number of different elements present.
It multiplies the number of all atoms in the entire formula.
It represents the atomic mass of the compound.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen atoms are present in the chemical formula Al2(CO3)3?
3
6
9
12
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