What is the molarity of a solution that contains 2 moles of KCl in 4 L of solution? a 2.0 M b 0.5 M c 0.25 M d 8.0 M

How can I tell how many electrons in each energy level? When my question states "third sublevel" does this mean sublevel P? In other words, How many electrons in: S D P F

What do you make when you hit a rock with a hammer

Complete combustion of a compound containing hydrogen and carbon produced 2.641 g of carbon dioxide and 1.442 grams of water as the only products. the molar mass of the hydrocarbon is 88.1 g/mol. what are the empirical and molecular formulas?

A 92 kg zebra is traveling 13 m/s east. What is the zebra's momentum? kg-m/s

Which element forms a compound with chlorine with the general formula MCl? (1) Rb (3) Re (2) Ra (4) Rn

What did scientists observe using the earliest microscopes

Which statement describes the redox reaction that occurs when an object is electroplated? A. It is spontaneous and requires an electric current. B. It is spontaneous and produces an electric current. C.

How are electromagnetic different than all other waves

Find the ratio of speeds of an electron and a negative hydrogen ion (one having an extra electron) accelerated through the same voltage, assuming non-relativistic final speeds. Take the mass of the hydrogen ion to be 1.67*10^{-27} kg.

A type of rock that undergoes changes because of heat and pressure