A gas sample is held at constant temperature. what happens to the pressure of the sample if the volume is doubled and the number of molecules is doubled

What quantity does the electronegativity of an atom represent

If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? (2005 K)

Which atom is most likely to attract electrons in a bond? A) K B) Na C) S D) Se

1. How many moles of oxygen gas are required to react with 15.56 moles of hydrogen gas? (2 pts.) 2H2 (g) + O2 (g) → 2H2O (g)

A mixture of sand and table salt cam be separated by filtration because the substances in the mixture differ in

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

How many milliliters of a 1.25 molar HCL solution would be needed to react completely with 60 g of calcium metal Ca+2HCl - - > CaCl2 + H2