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1
Answer:
1. -1
2. NaCl (salt)
3. smaller
4.
5. 2+ divalent cation
6. acid
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0
Answer:
hi the answer is below and pls vote my mom
Explanation:
15) (-)negative
16) nacl
17) larger
18) Ne
19) atomic no.
20) magnesium cation
21) inorganic
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