102-32 X RW Take Test: Homework #2 - CHE X +
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102-32 X
RW Take Test: Homework #2 - CHE X
+
es.cscc.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_657841_1&course_id=_151922_1&content_id=_12274239_1&step
Question Completion Status:
What is the correct formula for the compound containing calcium ions and nitrogen ions?
O Ca3 N2
O Ca2N3
Ca3N
CaN2
QUESTION 2
The formula for an ionic compound is CoS. What is the charge on the cobalt ion in this compound?
O +1
O +2
O-1
O-2
QUESTION 3
The atomic number for a Ti-48 (titanium-48) atom is 26.
True
False
QUESTION 4
An atom has eight protons, ten neutrons, and eight electrons. What is the mass number of this atom?
10
18
26
More information must be given before the mass number can be calculated for the atom.
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