What is the cumulative volume of all helium gas spheres in the 22.4 container? (#helium atoms in the container * volume of each atom) give your answer in liters

please answer asap

If there are 3.5 moles of koh, how many moles of naoh can be produced? question 1 options: a)3.0 moles naoh b)3.5 moles naoh c)1 moles naoh d)9 moles naoh

Awhite powder is added to a solution. the images show observations made before the powder is added, just after the powder has been added, and a little while later. (the liquid in the small beaker is phenol red solution.) what evidence shows that a chemical change has taken place?

State the effect on the concentration of the clo- ion when there is a decrease in the concentration of the oh- ion