How can you tell if an element has been reduced? O A. The number of its electrons has not changed in the reaction
O B. It has fewer electrons in the product than in the reactant
C. It has a positive oxidation state in the product.
D. It has more electrons in the product than in the reactant.

In saturated organic compounds, all the bonds between carbon atoms are called?

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that