A 50 g piece of aluminum is heated to 800c and then dropped into cold water, where the metal's temperature drops to 300c. how many calories does it lose to water? (specific heat capacity of aluminum is. 21 cal/g0c)

Is pain reliever a prescription drug?

Use Hess's Law or the summation equation to calculate the ΔHrxn. Round to the nearest tenth! ___NF (g) + ___F2 (g) - -> ___NF2 (g) ½N2 (g) + ½F2 (g) - > NF (g) Hf = 86.6 kJ ½N2 (g) + F2 (g) - > NF2 (g) Hf = 33.8 kJ

When a molecule absorbs IR electromagnetic energy, what are the vibrational modes affected

You have a solution that contains 1.0 g of oxalic acid dissolved in 100 mL of ether. This solution is placed in a separatory funnel, and then washed with 100 mL of water. Diethyl ether and water are immiscible solvents.

Which option describes a common property of the elements, nitrogen (N), phosphorus (P), arsenic (As) ? Hint: Review your periodic table. They have the same amount of reactivity. They have the same amount of atomic mass.

A student Increases the temperature of a 417 cubic centimeter balloon from 278 K to 231 K. Assuming constant pressure what should the new volume of the balloon be

What is the molarity of a solution with 1.17 moles of Ca (OH) 2 disolved in 0.2 liters of water? A. 1.17 M B. 0.2 M C. 0.17 M D. 5.85 M

What happens to acetone molecules when you add heat to a beaker of liquid acetone?

An effluent discharge with a flow of 1.5 m3/s and an ammonium-N concentration of 2 mg/L is released to a river with a flow of 12 m3/s and an ammonium-N concentration of 0.015 mg/L.

If you were to pour 4 different liquids into a glass and the liquids separated into 4 layers, which liquid would have the highest density?