Given the following chemical reaction: 2 O2 + CH4 - - > CO2 + 2 H2O

What mass of oxygen is required to completely react with 2 moles of CH4?

A) 77 grams O2

B) 98 grams O2

C) 128 grams O2

D) 144 grams O2

N a nuclear reaction, mass must be lost to produce energy. true or false

Which state of matter has the strongest intermolecular forces?

If 2083 joules are used to melt 5.26 grams of aluminum, what is the heat of fusion of aluminum?

Which base is the strongest for the given [H+]? 10-9 10-11 10-10 10-12

A chemist adds 0.55 L of a 4.69M silver nitrate (AgNO3) olution to a reaction flask. Calculate the mass in kilograms of silver nitrate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

In a cooking context, which of the following materials is the best heat conductor? A. Any dense liquid B. Iron C. Gas D. Glass

When you open a bottle of soda, bubbles of carbon dioxide start appearing. Is this a chemical or physical change and why?

Al2 (SO3) 3 what are the number of atoms

How marly electrons are in an atom of elemental sodium?

Petroleum and coal can be mined from the continental shelf. t/f