Login
Home
TOP
Send feedback
Login
Subjects
Science TNSB Mentoring
Class 9
Periodic classification of elements
The structure of the modern periodic table
9.
Alkaline metal with oxygen
Question:
5
m.
Fill in the blanks about alkaline metal with oxygen reaction:
1.
Choose the chemical element number \(38\) __________ and their oxygen reaction product __________.
\(2Mg\)
\(2Ra\)
\(Sr\)
\(Ba\)
\(2Ca\)
\(Cr\)
\(2Be\)
+
O
2
→
\(V_2O_5\)
\(SrO_2\)
\(2RaO\)
\(2MgO\)
\(BaO_2\)
\(2CaO\)
\(2BeO\)
Login
or
Fast registration
Previous task
Exit to the topic
Next topic
Send feedback
Did you find an error?
Send it to us!
