ATS Chemistry: Empirical formulae
Authored by Jessica Cross
Chemistry
10th - 11th Grade
NGSS covered
Used 204+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the empirical formula of a substance with the molecular formula C2H4?
C2H2
C2H2
C1H1
CH2
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the empirical formula of a substance with the molecular formula NaCl?
Na2Cl
NaCl2
NaCl
Na2Cl2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the empirical formula of a substance with the molecular formula X20Y15?
X10Y15
X5Y3
X4Y3
X20Y15
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the empirical formula of a substance with the molecular formula Se8F12?
Se8F12
Se2F3
Se4F3
SeF
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molecular formula of this substance?
C2H2
C2H2
C2H6
CH2
Tags
NGSS.HS-PS1-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the empirical formula of this substance?
SO
SO2
S2O2
SiO2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Mr of the compound Na2SO4?
142
140
71
172
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