C
He needs an battery to make the simple electromagnet
YYe the answer is mechanical
Answer:
Metamorphic rock
Explanation:
metamorphic rocks do not get hot enough to melt they just get denser if they did they would become igneous rocks.
Metals are insulators and malleable. Hope this helps even though I'm late :)
Hydrochloric acid and sodium hydroxide
HCl + NaOh ----> NaCl + H2O
