1. False
2. ?
3. same as 2
4. True
5. False
6. False
7. ?
8. ?
9. True
10. False
Answer:
Na2S
Explanation:
Na2S: Na (always +1). S (-2) in this formula
CaSO4: Ca (always +2). O (-2). => S (+6) in CaSO4
S (0)
SO2: O(-2) => S (+4)
Hope this answer will help you! Have a nice day!
Answer:
5+ 45 = 50 is the answer....
Answer:
10
Explanation:
Each 100 ml should have 5 solid naom to have 5%,
For 200 ml: 200 *5%=10