HELP I NEED ANSWERS QUICK! WILL MARK BRIANLIEST! Relate these words to the ducklings Abiotic Factor: non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
Biotic Factor: a living thing, as an animal or plant, that influences or affects an ecosystem
Limiting Factor: is anything that constrains a population's size and slows or stops it from growing.

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.