Chapter 15 Section 15.2. Homogeneous Aqueous Systems. Think-Pair-Share. Explain why you must be extremely careful when using electricity near a swimming pool. Solutions. Aqueous Solution -Water that contains a dissolved substance. 2 Parts to a solution:
Homogeneous Aqueous Systems
This relationship can be summed up in the expression “like dissolves like.”
In order for the bulb to light, an electric current must flow between the two electrodes that are immersed in the solution
Your cells use electrolytes, such as sodium and potassium ions, to carry electrical impulses across themselves and to other cells
Pickles contain table salt. Why can electric current flow through a pickle, causing it to glow?
Explain why you must be extremely careful when using electricity near a swimming pool.
The forces holding the water molecules in hydrates are not very strong, so the water is easily lost and regained.
A piece of filter paper that has been dipped in an aqueous solution of cobalt(II) chloride and then dried is blue in color (anhydrous CoCl2).
Calculate the percent by mass of water in epsom salt, magnesium sulfate heptahydrate (MgSO4.7H2O)