How many moles of carbon are in 43.65 grams of carbon?

The Ksp expression for the system PbCl2 (s) Pb+2 (aq) + 2 Cl - (aq) is:

What monomer is made up of a base, a sugar, and a phosphate group? A. Monosaccharide B. Nucleotide C. Phospholipid D. Amino acid

Separation techniques in analytical chemistry

You are given two closed containers. Each containing a liquid solvent. Ammonia and table salt will dissolve in container A. Hexane and carbon dioxide will dissolve in container B.

A test done under standard conditions is referred to as what in chemistry? A. STP B. Control C. Rate Constant D. Kinetics E. None of the above

Before a race, an athlete warms up by jogging around the track shown below at a constant rate of 2.3 m/s. What statement best describes his motion as he jogs around the curved part of the track?

What physical property is changed when a waitress pours coffee from a pot into four mugs? temperature density volume color

Calcule o calor especifico do estanho sabendo que foram necessarias 100 cal para elevar em 20ºC a temperatura de 100 g de estanho

What's the smallest part of a compound

The inertness of the noble gases is due to a. the outermost shell has six electrons. b. the bonds they form with other elements. c. the number of protons and neutrons. d.