What should we do when transferring a solution from a test tube to another using a dropper? (1) Use a new dropper every time we transfer the same solution in an experiment.
(2) Hold the dropper upside down to avoid any leakage.
(3) Dispose of the unused solution in the test tube.​

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?

Why does his teacher ask him to balance the equation by including the correct coefficient

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.