Describe and explain two ways to separate a mixture of sulphur powder and sodium nitrate crystals to collect pure samples of each solid

Are baking cookies an acid base reaction

It is easier to determine the electron configurations for the p-block elements in periods 1, 2, and 3 than to determine the electron configurations for the rest of the p-block elements in the periodic table because a.

An aqueous solution of nitric acid contains 70.0 % HNO3 by mass. The density of HNO3 is 1.42 (g/cm3). Express the mass percent of HNO3 in molarity.

A sample of nitrogen gas in a 1.59-L container exerts a pressure of 1.47 atm at 26 ∘C. What is the pressure if the volume of the container is maintained constant and the temperature is raised to 371 ∘C?

Calculate the number of moles of NaHCO3 that reacted in each beaker. (The molar ratio between evolved CO2 and the bicarbonate, HCO3-, 1:1.)

Molybdenum has a molar mass of 95.94g/mol. How many molecules of molybdenum are in 150.0 g of molybdenum

Describe a way that people might be able to solve each envioronmental problem listed below. coal mining can harm habitats and cause pollution.

A sample of methane gas occupies 4.50 gallons at a temperature of 80.0 F. If the pressure is held constant, what will be the volume of the gas at 100. degrees C?

Jack wants to know if it takes longer for warm water to freeze into ice cubes than cold water, so he performed the following experiment. Jack placed 50 mL of water in the refrigerator and allowed it to cool to a temperature of 4°C.

How to calculate average concentration