How many moles are in 85.0 grams of water

Which color of sunlight has the greatest amplitude

In a solution, the part that does the dissolving is called the a. solvent. b. solute. c. suspension. d. dissolver.

Which contains the greatest number of moles of oxygen atoms: 1 mol of ethanol (c2h5oh), 1 mol of formic acid (hco2h), or 1 mol of water (h2o) ? explain why?

A gas is at an original pressure of 412 torr and a temperature of 79°C. What is the new temperature of the gas (in K) if the pressure changes to 341 torr?

Which of the following correctly compares UV rays and x-rays? A) X-rays have the same wavelength as UV rays. B) UV rays have the same energy as X-rays. C) X-rays have a higher frequency. D) UV rays have lower energy.

A compound contains 38.7% K, 13.9% N, and 47.4% O by mass. What is the empirical formula of the compound? A compound contains 38.7% K, 13.9% N, and 47.4% O by mass. What is the empirical formula of the compound?

A sample of an unknown compound was decomposed and found to be composed of 1.36 mol oxygen, 4.10 mol hydrogen, and 2.05 mol carbon.

When a transition metal reacts with chlorine, what types of bonds are formed between the two elements? A) ionic bonds B) covalent bonds C) transition bonds D) No bonds are formed.

How many grams of hcl are produced when 10.0 g of cl2 and 1.00 g of h2 react? h2 (g) cl2 (g) - - - > 2 hcl (g) ?

A person has a mass of 1000g and an acceleration of 20 m/s/s. What is the force on the person? A.) 20000 N B.) 2000N C.) 20N D.) 200N