PLEASE HELP I WILL GIVE YOU BRAINLIEST Provide the chemical formula for the following
1 answer:
1. CaCr2O7
2. Sodium sulfite
3. (NH4)2SO3
4. Copper (II) nitrite
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What is the mole ratio of  to Fe? if oxygen it is 4:3 Fe3O4
Answer: Group 14
Explanation:
It's a carbon atom with 4 valance electrons.
