Aluminum can react with oxygen gas to produce aluminum oxide (al2o3). what type of reaction is this? a. single replacementb. synthesis c. double replacementd. decomposition

Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.

Why is permeable soil best for plants that need a lot of drainage?

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures