Humpty Dumpty weighs 400 Newtons. He falls off a wall 3 m high. How much work was done by gravity on Humpty Dumpty?

Has a liquid and solid layer

Which volume of oxygen, at room temperature and pressure, is needed for complete combustion of 1.0mol of methylpropan-1-ol? A 108dm3 B 144dm3 C 156dm3 D 288dm

Here are approximately 15 milliliters (mL) in 1 tablespoon (tbsp). Which expression can be used to find the approximate number of milliliters in 3 tbsp? 1 tbsp x 15ml/3tbsp 1 tbsp x 3ml/15tbsp 3tbsp x 1 tbsp/15ml 3tbsp x 15ml/1tbsp

How to measure a bag of flour

There are four equal-sized bowls with equal amounts of milk. Bowl A is covered, and the milk is at room temperature. Bowl B is uncovered, and the milk is warmer than room temperature. Bowl C is uncovered, and the milk is cooler than room temperature.

What is the mass of 4.6 moles of helium gas?

In the process of ionization, what is the relationship between the second ionization energy and the third ionization energy?

What are examples of convection?

Find the mass of 1 mole of cuprous oxide, or cu2o. assume the atomic mass of copper is 64 and oxygen is 16.

Ice (H2O) melting at 273 K and 1 atm has = 6.01 kJ/mol and = 6.01 kJ/mol while water vaporizing under the same conditions has = 37.6 kJ/mol and = 40.7 kJ/mol. Why is there such a large difference between and, but not for and?