What element is oxidized in the following reaction?

HNO3 + Cu yields Cu (NO3) 2 + NO2 + H2O

a. Cu

b. H

c. N

d. O

A gold nugget has a volume of 4.35cm and a mass of 84.96g. What is its density?

Calculate the vapor pressure of water above a solution prepared by dissolving 28.5 g of glycerin (c3h8o3) in 135 g of water at 343 k. (the vapor pressure of water at 343 k is 233.7 torr.)

How many moles of ions are in 1.25mol of K2SO4?

A lithium has three protons three neutrons and three electrons what is the overall charge

A disaccharide is formed by the chemical bonding of two monosaccharides. two polysaccharides. one monosaccharide and one polysaccharide. two oligosaccharides.

Which of the following best describes what happens when an ionic bond forms? A) two atoms come together and share electrons in order to fill their octets. B) two atoms give up their electrons in order to form a bond.

Describe the attraction between 2 atoms as a result of sharing electrons

I need to know about mitosis and meiosis

What is sediment and debris, and what role does it play in the way sedimentary rock forms?

How do I convert 4,500mm to a m