A compound has an empirical formula of CHN. What is the molecular formula, if it's molar mass is 135.13 g/mol? (C=12.01 amu, H=1.008 amu, N = 14.01)

Which statement defines the first law of thermodynamics? a The total energy of the universe is constant. b The entropy (or randomness) of the universe is always increasing.

The concentration of an unknown acid solution with general formula H3A is to be determined by titration with a 0.850 M KOH solution. Determine the concentration of the acid solution given that 38.

Which of the following substance is combustible? Wood, asbestos or granite

Solid potassium chromate is slowly added to 175 mL of a lead (II) nitrate solution until the concentration of chromate ion is 0.0366 M. The maximum amount of lead ion remaining in solution is

Eutrophication caused by humans is called? a. artificial phosphates b. artificial fertilizer c. artificial trophication d. artificial eutrophication

What is called a bond between a metal and a nonmetal

100 level student of the adamawa state university mubi was ask to synthesize ammonia (haber process) in the ratio 3:1 of hydrogen to nitrogen. durin the synthesize, 6.00 mole of nitrogen, 4.20 mole of hydrogen and 0.

Na + leaks through neuron membranes faster than k + because of the properties of the non-gated leak channels. na + leaks through neuron membranes faster than k + because of the properties of the non-gated leak channels. a. True b. False

How many protons does one atom of sulfur have

Which shows the electron configuration for zinc (Zn) ? [Kr]5s24d10 [Kr]5s24d6 [Ar]4s23d9 [Ar]4s23d10