How can substances in a compound and in a mixture be separated?

a gas sample occupies a volume of 140 mL at a temperature of 296 K and a pressure of 98.2kPa. how many moles of gas are there? show work.

What is the oxidation number of the chromium atom in li 2 cro4?

How many moles are equal to 1.27x10^23 molecules of H2O

Oxido salino cuproso cúprico

5. Oxygen will make iron

Plastic, rocks, and steel are all matter. They are made of tiny particles that can't be broken down into smaller pieces. These particles are called:

The palm tree with island is a population or biome or community

A gene is a section of dna within a chromosome that codes for a

An electron charge e mass m and a positron charge e mass m revolve around their common center of mass under the influence of their attractive coulomb force Find the speed v of each particle in terms of e m k and their separation L

Find the density of an object with a volume of 2.5 cm3 and a mass of 8.0 g.