In the amino acid formula, what does the "R-" represent?

A halogen

A hydroxyl group

An alkyl group

An oxyacid

How many liters of H2 gas would you have if you have 2.52 moles of H2?

A gas sample has a volume of 300 L when under a pressure of 55.0kPa. What is the new volume if the pressure is increased to 165 kPa while the temperature is held constant

Sam and Reagan are arguing about waves. Sam says that sound waves are transverse, but Reagan says they are longitudinal. Who is right and why?

How to find orbital notation?

How do i calculate the mass of CO2 emitted per Kj of heat produced in a combustion reaction?

Which of the following is true for a gas under conditions of very low temperature? PV : nRT = 1, because all gases behave ideally at very low temperatures. PV : nRT = 1, because the actual volume of the gas molecules becomes considerable.

How is steel made from iron?

8. True or false: Half-life is half the time it takes for a radioactive sample to completely decay.

Given the equation representing a reaction: sn4 + (aq) + 2e - → sn2 + (aq) which term best describes this reaction?

Calculate the root means square velocity of nitrogen molecules in 25 degrees Celsius