1. False
2. Magnesium
3. True
4. LiF
Answer:
23 moles Oxygen × 6.02 × 1023 atoms = 1.3846 × 1025 atoms Oxygen.
Explanation:
Sodium hydroxide (like soda)
Reason - has strong alkaline sodium hydroxide and hydrogen gas when reacted. This is an exothermic reaction-Sodium is heated and may catch on fire and burn with a orange flame.
Answer:
Physical Change
Explanation:
A solid being crushed into a powder is a physical change because a chemical change is when substances combine to create new substances.
Hope this helps :)