Writing Formulas
Quiz
•
Science
•
11th Grade
•
Practice Problem
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The chemical formula for an ionic compound of potassium and oxygen is
KO.
K2O.
K2O2.
KO2.
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hydrochloric acid, commercially known as muriatic acid, has the chemical formula ________.
HCl
HClO
HClO2
HClO3
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solid carbon dioxide, more commonly known as dry ice, has the chemical formula _______.
CO
CO2
CO3
CH4
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tetraphosphorus trisulfide has the chemical formula ________.
P3S4
P4S3
F3S4
F4S3
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How do the following two elements bond together?
Na1+ F1-
NaF
NaF3
Na3F
Na1F2
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When adding a subscript to a polyatomic ion, you should...
multiply any subscripts on the polyatomic ion by the subscript you are adding
put parentheses around the polyatomic ion before adding a subscript
write the new subscript next to any subscripts on the polyatomic ion
put the polyatomic ion in square brackets before adding the subscript
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When writing chemical formulas, how do you know it is a polyatomic compound?
The word acid is in its name
Its name ends in
-ate or -ite
Its name has roman numerals
Its name ends in
-ide
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