When utilizing a transmission electron microscope, why is it necessary to stain the specimen with heavy metal salts?

A solution is made of 398 g toluene (C 7H 8, 92.1 g/mol) and 734 g benzene (C 6H 6, 78.1 g/mol). At 20.0 o C, the vapor pressure of pure toluene is 22 torr and the vapor pressure of pure benzene is 75 torr.

How is the movement of particles in diffusion determined?

A zinc atom loses 3 electrons to become a zinc ion

Which element will form metallic bonds? A. Carbon B. Iron C. Neon D. Uranium

Which is a monosaccharide? A cellulose B glucose C glycogen D sucrose

How does the conservation of matter relate to balancing equations?

Ethanoic acid and 1-butanol can react to produce water and a compound classified as an 1) aldehyde 2) amine 3) ester 4) halide

Sodium metal reacts with water to form aqueous sodium hydroxide and hydrogen gas. which equation below best describes the balanced equation for this reaction?

2H2 + O2 - - > 2H2O If 16 mol of oxygen were reacted with excess hydrogen gas, how many moles of water would be produced?

Which subatomic particle identifies an atom as that of a particular element? how is this particle related to the atoms atomic number