Which are assumed to be constant while using the combined gas law?

pressure

number of moles

volume and moles of gas

pressure and temperature

One of the half-reactions for the electrolysis of water is 2H + (aq) + 2e - → H2 (g) If 0.845 L of H2 is collected at 25°C and 782 mmHg, how many faradays of electricity had to pass through the solution?

What does equilibrium mean? O A. The two sides of a reaction have equal concentrations, O B. Total amounts of products and readiants are not changing O C. There are no more reactants present in the reaction solution O D.

The combustion of 0.136 kg of methane in the presence of excess oxygen produced 353 g of carbon dioxide what is the percentage yield

Convert 165.32 grams of Cu to atoms

A black rooster mates with a white hen. Based on their genotypes, the chance that the offspring will be checkered is 100 percent. What is the rooster's genotype? What is the hen's genotype? The rooster genotype is. The hen's genotype is.

Which type of wave has a wave perpendicular to the disturbance? Surface Longitudinal Mechanical Tranverse

Caffeine's molecular formula is c8h10n4o2. the molar mass of caffeine is 194g/mol. what is the percentage of carbon in caffeine

Which will evaporate more quickly: 55 mLmL of water in a beaker with a diameter of 4.5 cmcm, or 55 mLmL of water in a dish with a diameter of 12 cmcm?

A 1-cubic-centimeter cube of sodium reacts more rapidly in water at 25°C than does a 1-cubic-centimeter cube of calcium at 25°C.

Calculate the voltage if the current is 0.5 A and the resistance is 2.0 Ω.