What is the change in electrons for sulfur in the following reaction?
SO2 (aq) + Cr2O7^2-(aq) -> SO4^2- (aq) + Cr^3+ (aq)

A. Gain 3 electrons
B. Gain 5 electrons
C. Lose 2 electrons
D. Lose 1 electron

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

What relationship exists between an enzyme and a catalyst?