Which of the following BEST describes a substance being dissolved?

Group of answer choices

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.