The densest water in the ocean is known as the Antarctic Bottom Water. It is formed along the Antarctic ice shelves where water freezes on the ocean's surface. The Antarctic Bottom Water plays a big role in the global circulation of ocean waters around the world. This dense water is
carried along the ocean floor, delivering oxygen and nutrients to the deepest parts of oceans.
Salia is making a model of the Antarctic Bottom Water. She mixes different amounts of salt into water samples. The water is all the same
temperature
Amount of water Amount of salt Density of water
50 ml
10 grams
1.2
50 ml
15 grams
1.3
50 ml
25 grams
1.5
Graph Salia's data on the line graph.
Predict the density of a 50-ml sample of water with 5 grams of salt added by placing a point on the graph.
Predict the density

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?