What dose plasma come from

The reaction of 7.8 g benzene, C6H6, with excess HNO3 resulted in 0.90 g of H20. What is the percentage yield? C6H6 + HNO3 - C6H5NO2 + H2O Molar Mass: C6H6 = 78 g/mol; HNO3 = 63 g/mol; C6H5NO2 = 123 g/mol; H2O = 18 g/mol

What is the passing of a wave through an object

Which describes the flow of energy in a food chain? (Which food chain makes sense) A. Sun-->Grass-->Mouse-->Snake B. Grass-->Mouse-->Snake-->Sun C. Snake-->Sun-->Grass-->Mouse D. Mouse-->Snake-->Sun-->Grass

A thermometer shows that the temperature of the air in a room has increased. Which type of energy has increased?

What option gives the correct mole ratio

How is a thermochemical equation different from a chemical equation?

A balanced equation tells you the mole ratio of all reactants and products. Using the chemical reaction below how many moles of NH3 are made when 3 moles of hydrogen gas are used? 2N2 + 3H2 - - - > 2NH3

In the explosion of a hydrogen-filled balloon, 0.80 g of hydrogen reacted with 6.4 g of oxygen. How many grams of water vapor are formed? (Water vapor is the only product.)

What are three reasons why a population might change?

Why carbon nanotubes are ao strong?