Fe2+(s) + Cr6+(aq) → Fe3+(aq) + Cr3+(aq) Which element is being reduced?
Which element is being oxidized?
Which reactant is the reducing agent?
Which reactant is the oxidizing agent?

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

Ab c or d ? i’m not sure what the answer is

What is the chemical formula for the compound formed between sodium and flour one