How many moles of aluminum do 5.6*1024 aluminum atoms represent? express your answer using two significant figures?

Which statement is correct?1. Only nonpolar molecules have dispersion forces. 2. Only molecules that can hydrogen bond have dispersion forces. 3. Only polar molecules have dispersion forces. 4. Evaporation is an endothermic process. 5.

Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to produce hydrogen gas. which of the properties mentioned is a chemical property? a. are malleable b. reacts with acids c.

Isaac newton eyes optics is it a theory or law?

3. A tea kettle holds about of water. 2 mL 200 mL 2L 200 L

During the action of a sodium-potassium pump, 50 ATP molecules were spent. Predict how many sodium ions are transported across the cell membrane.

Moles of hydrogen gas (14) 0.00336 mol 0.00481 mol Moles of hydrogen per g sample (n*,) mol/g mol/g

A hurricane and a typhoon are the same thing true or false?

Identify the element that chlorine forms a covalent bond with

A child pulls a sled up a snow-covered hill. The child does 405 J of work on the sled. If the child walks 15 m up the hill, how large of a force must the child exert?

A piece of glass with a mass of 32.50 g specific heat of 0.840 J/g*°C and an initial temperature of 115 °C was dropped into a calorimeter containing 57 g of water (specific heat 4.184 J/g*°C).