Which of the following is true? O The exact position of an electron can be known.
O Electron clouds have the same energy levels.
O Electrons in a cloud have probable locations.
O Electrons are positively charged.

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.

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

How much carbon is stored in the atmosphere as co2