Which pair of elements are the most different

What is the molar mass of hydrogen peroxide?

A gas has a volume of 75mL at a pressure of 200.0 kPa. What will be the new volume be in mL if the pressure is decreased to 60.0 kPa in sig figs

Consider this reaction: KOH + HBr KBr + H2O Which statement is most likely true about HBr? O It turns blue litmus red O It reacts with carbon dioxide to form a carbonate O It feels slippery

What mass of hydrogen is produced from the reaction of 50.0 g of Mg and 75.0 g of HCl? How much of the excess reagent is left over? Mg + 2HCl → MgCl2 + H2

What is the molarity of a solution containing 0.05 moles of solute in 0.25L of solution?

What is the part of an experiment that is not being tested and is used for comparison?

In which situation is maximum work considered to be done by a force? OA. The angle between the force and displacement is 180° B. The angle between the force and displacement is 90°. C. The angle between the force and displacement is 60° D.

What is a good sentence for (pure) substance

Driving under the influence of the of an opiate is dangerous 1: they cause the user to feel they are in a safe place and not care about outside dangers 2: They cause you to become agitated and engage in the road rage 3: They can have the unreliable

If the lipid bilayer were to contain the K + channel protein, what would pass through the membrane if you added a 1 M solution of sodium chloride on the left side and a 1.