Select all that apply. Use electron configurations to explain why the ionization energy for calcium is greater than that for potassium. Calcium has one more proton than potassium. Potassium has one more proton than calcium. Higher positive charge attracts electrons. Lower positive charge attracts electrons.

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign