Which number most likely represents the first ionization energy, in kilocalories per mole of atoms, for a nonmetallic element?

1.96

2.138

3.194

4.239

Which of the following would be the SI unit to use in the measuring the temperature of a hot liquid? A: ampere B: Mole C: Kelvin D: celsius

Which compound (s) is (are) bonded ironically A. KI B. CO C. CO2 D. CaO Check all that apply

Calculate the enthalpy change when 2 l of liquid nh3 is burned in air to give n2 (g) and h2o (g). express your answer using two significant figures.

What would Fiberfill represent in a atom model

How many atoms of carbon, C, are in 0.98 g of carbon

What is the mass of 4.6 moles of helium gas?

In the process of ionization, what is the relationship between the second ionization energy and the third ionization energy?

What are examples of convection?

Find the mass of 1 mole of cuprous oxide, or cu2o. assume the atomic mass of copper is 64 and oxygen is 16.

Ice (H2O) melting at 273 K and 1 atm has = 6.01 kJ/mol and = 6.01 kJ/mol while water vaporizing under the same conditions has = 37.6 kJ/mol and = 40.7 kJ/mol. Why is there such a large difference between and, but not for and?