If a substance cannot be separated

physically it is?

What kind of intermolecular force is between hydrogen sulfide and hydrogen iodide?

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A container is filled with a mixture of helium (light molecules) and oxygen (heavy molecules) gases. a thermometer in the reads 22°c. which gas molecules have the greater average speed

Density of distilled water? What is the density of distilled water?

What must happen for ice to melt at a given pressure

How many molecules of liquid ethanol are in 1.00mL of ethanol, given its density of 0.789 g/mL

Which of these factors makes nuclear energy unsustainable? A. Nuclear power plants last the longest. B. Nuclear energy requires wind turbines. C. Nuclear power plants cost the most to build. D. Nuclear energy relies on uranium.

A star is estimated to have a mass of of 2 X 10^36 kg. Assuming it to be a sphere with an average radius of 7.5 X 10^5 km, calculate the average density of the star in units of grams per cubic centimeter. Density = g/cm^3

Which is the correct net ionic equation for the reaction of aqueous ammonia with nitric acid? Which is the correct net ionic equation for the reaction of aqueous ammonia with nitric acid? a. NH3 (aq) + NO3? (aq) - -> NH2 - (aq) + HNO3 (aq) b.

A mineral crystallizes from magma deep inside Earth. Which characteristics can be determined given only the information above? luster streak crystal size crystal structur