Which of the following is a salt?

A) C2H2

B) C6H12O6

C) O2

D) CaCl2

How many moles of glucose, c6h12o6, can be burned biologically when 10.0 mol of oxygen is available? c6h12o6 (s) + 6o2 (g) ? 6co2 (g) + 6h2o (l) ?

Will nitrogen atoms form bonds with other atoms? why?

Nitrogen:0.781 oxygen:0.209 argon: 0.010 (Mole fraction) What is the partial pressure or nitrogen (in torr) in the atmosphere when the atmospheric pressure is 765.0 torr?

The molar mass of water (H2O) is 18.02 g/mol. Yun needs 0.025 mol H2O for a laboratory experiment. She calculates that she needs 72.0 g H2O for the experiment. Is she correct?

Classify each example as an element a compound a heterogeneous mixture or a homogeneous mixture a pure drinking water

Which microscope came out first

Which exerts greater pressure on the floor-standing flat-footed or standing on tiptoe? on tiptoe, because the force acts over less area on tiptoe, because the force acts over more area flat-footed, because the force acts over more area flat-footed,

1. Sara tells Michael she is 160 centimeters tall, while Michael says he is 60 inches tall. If there are 2.54 centimeters in an inch, who is taller

How do you tell if a compound is polar or non polar

What two ions are central to the arrhenius definitions of acids and bases?