This type of formula is use in chemistry it has Iron ,Sodium, Hydroxyl and Chloride unit s in the equation.
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Answer:
A. a system that can be affected by the outside environment, by an exchange of matter or energy
300cm cubed ( have a great night! )
Answer:
I Think it might be A! I hope I am right!
A. 1,5,3,4
the 3 and 4 increase the number of oxygens on the right side to 10 so you have to put a 5 in front of the oxygen of the left side to balance it out
