Calculate the volume of 0.845 mol nitrogen gas at 1.25 atm and 28 °C.

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.

How many moles of potassium are needed to react completely with 12.8 moles of magnessium bromide?

Amanda pushes a box across the room with a force of 30 n. it accelerates at 5 m/s/s. what is the mass of the box? * 6 kg 1.16 kg 30 kg 5kg