The answer is (4), (3) is merely a change in composition, thus not chemical but physical.
Answer: (4).
Answer:
true
Explanation:
n·ert gas
/iˈnərt ˈˌɡas/
noun
another term for noble gas.
<span>The bonding found in calcium chloride is i</span>onic bonds.
I hope this helps!
Answer:
2
Explanation:
a peace of metal may be heatedin a fire until it glows,but the metal is the same material before heating and after cooling
Answer:
use secondary data. the normal method to use
