Which of the substances whose formulas are given below is an oxide? Fe (OH) 3 H2CO3 CO2 AlCl3

Let’s write down all the substances and determine the class of each of them:
Fe (OH) 3 is an amphoteric hydroxide
H2CO3 is acid
CO2 is an acidic oxide
AlCl3 – medium salt
We have CO2 – oxide



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