Chemist determined by measurements that 0.015 moles of nickel participated in a chemical reaction. Calculate the mass of nickel that participated in the chemical reaction. Round your answer to 2 significant digits.

How many lithium ions are present in 30.0 ml of 0.600 m li2co3 solution?

Octane has a density of 0.692 g/ml at 20∘c. how many grams of o2 are required to burn 17.0 gal of c8h18

Determine the grams of sodium chloride produced when 10.0g of sodium react with 10.0g of chlorine gas according to the equation: 2Na + Cl2=2NaCl

What has its own size and shape

How do you pass the chemistry regents?

25 In general, for a gas at a constant pressure, A the temperature of the gas is inversely proportional to its volume B. the temperature of the gas is inversely proportional to its pressure C.

The vapor pressure of ethanol is 54.68 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that dissolves in ethanol is saccharin. Calculate the vapor pressure of the solution at 25 °C when 8.054 grams of saccharin, C7H5NO3S (183.

What do microscopic producers supply the atmosphere with?

A particular form of electromagnetic radiation has a frequency of 8.11 x 10^14 hz. What is the energy in joules of one quantum of this radiation?

Which transition elements in the first transition series have anomalous electron configurations?