How many mole ratios can be correctly obtained from the chemical equation 2NO ® N2 + O2? Select one:

a. 1

b. 4

c. 6

d. 3

Why is water an electrolyte? why?

18. Which is a chemical reaction? water vaporizing wood burning salt dissolving ice melting

Is a cup of coffee a solution or heterogeneous mixture?

What is the chemical formula for nitrogen dioxide

Two liquids are added to the same graduated cylinder. liquid a has a mass of 10g with a volume of 5ml. liquid b has a mass of 15g with a volume of 10ml. which liquid would end up on the top when they are combined

What is the mass (g) of 500. ml water if the density is 0.9901 g/ml?

Predict what the population of the United States will be in the year 2010

Assume we could alter the conditions in the duodenum. Which of the following would be consistent with inserting a large volume of highly acidic chyme which contained a large amount of fat?

Molecules that form when electrons are shared unequally between atoms are called

Explain why substances do not crumble into piles of atoms.