Please help me, I’m super stuck. It needs to be labelled and a explanation of green house effect.

Calculate the number of molecules present in 0.750 mol of mgo.

The diagram below shows a cell placed in a solution. a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution. only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it. it will expand as water moves into it. it will shrink as water moves into it.

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?