Pretend you have two boxes full of sand suspended from either side of a pulley. The boxes weigh the same amount. How much force needs to be exerted on each box to keep the system in equilibrium?

An aqueous solution of hydroiodic acid is standardized by titration with a 0.186 m solution of calcium hydroxide. if 26.5 ml of base are required to neutralize 20.3 ml of the acid, what is the molarity of the hydroiodic acid solution? m hydroiodic acid

Remember to use the proper number of significant figures and leading zeros in all calculations.gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4

How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?