Environmental Science Exam 1 - Continued 33. A. Imagine that you are helping a young cousin with a science project. Your cousin is aware
that exposure to direct sunlight can fade color photographs. Your cousin wants to do a
project to see whether exposure to fluorescent light can also fade color photographs and,
if so, whether it fades the color as quickly. She is having a hard time coming up with a
hypothesis. Help your cousin state a hypothesis that she can test and write it below:

B. In the experiment, the type of light will be the variable. Suggest to your cousin at least
one condition that she will need to keep the same for each light sample.

Please help thank you!

Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback

How do you lengthen a pattern piece? (family and consumer science, sewing)

The excretory system,need answers for all: )