Answer: A. CaO
Took the test already.
Answer: c
Explanation:
A reaction in which two or more molecules combine together to result in the formation of a larger molecules then this type of reactions are known as addition reactions.
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Answer:
C.They are only magnetic if an electric current is running through them
Explanation:
Electromagnets are conductors which develop a magnetic field due to the electrons flowing through them. If the flow of electric current stops, the motion of the electrons stop and they do not generate their magnetic fields.
