Abacteria culture begins with 15 bacteria which double in amount at the end of every hour. solve for the number of bacteria that are grown during the 12th hour.

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.

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

Which of the following is not true about the atomic model of substances?