Elemental analysis of a compound, once used as a pesticide, was found to be 74.2% carbon, 8.64% hydrogen, and 17.2% nitrogen. What is the empirical formula of this compound?

Heat required to raise 1 g of a substance 1°C

The molar mass of sodium chloride is 58 g/mol. how many grams of sodium chloride are in 0.5 mol of sodium chloride?

Each element consists of only one type of atom. A.) True B.) False

A cube has a mass of 100 grams and it's density is determined to be 1g/cm^3. The volume of the cube must be

Which statement defines the enthalpy of hydration?

Does the arrangement of particles stay the same from one state to another?

Which of the following are true about a block of ice at - 10 degrees Celsius as you continue to apply heat. The temp will rise continuously until it completely melts. It's temp will rise until reaching 0 degree Celsius.

What trend does the first ionization energy follow, going down the periodic table?

Classify the following reactions: HNO3 (aq) + NH3 (aq) →NH4NO3 (aq) + H2O (l) 2Cu (s) + O2 (g) →2CuO (s) NaCl (aq) + AgNO3 (aq) →NaNO3 (aq) + AgCl (s) 2LiOH (aq) + H2SO4 (aq) →Li2SO4 (aq) + 2H2O (l) CaCl2 (aq) + K2CO3 (aq) →2KCl (aq) + CaCO3 (s)

2 unicellular no autotrophic It uses a flagellum. A. Kingdom animalia B. kingdom fungi C. kingdom plantae D. kingdom protista