Writing Formulas for Binary Ionic Compounds
Authored by Charles Martinez
Chemistry
9th - 12th Grade
NGSS covered
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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for magnesium phosphide?
Mg3P2
Mg2P3
Mg2PO3
Mg3(PO3)2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the compound TiO2, titanium has a charge of
4+
2+
2-
4-
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The chemical formula for an ionic compound of potassium and oxygen is
KO.
K2O.
K2O2.
KO2.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is most likely to form a negative ion?
an element from group 17
a metal
an element from group 1
an element with atoms that have eight valence electrons
Tags
NGSS.HS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a cation?
positive ion
Neutral atom
Two additional protons
negative ion
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name this compound:
NaBr
Bromide sodide
Sodium bromide
Sodium bromate
Sodium bromite
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the formula for copper (I) phosphide
Cu3P
CuP
Cu1P
CuP3
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