Which of these is a compound?

A. carbon

B. carbon dioxide

C. Air

D. oxygen

What elements are in group 1

When an atom is chemically stable how many electrons are in its outer energy later?

What is the total number of electrons shown in this Lewis structure of carbon dioxide? 8 12 16 24

What unknown quantity can be calculated after performing a titration? a. volume c. mass b. concentration d. density

Tea is a solution of caffeine, plant pigments, and other chemicals dissolved in water. Identify each component of the solution as a solvent or a solute. Water is a O solute. O solvent.

Which term best describes the substances that cause oil and water molecules in salad Dressing to interact and mix? surfactants miscible liquids immiscible liquids compressed molecules

C3H8 + 5O2 - > 3CO2 + 4H2O According to this equation, which ratio of oxygen to propane is correct? 1 - 5 grams O2 / 1 gram C3H8 2 - 5 moles O2 / 1 mole C3H8 3 - 10 grams O2 / 11 grams C3H8 4 - 10 moles O2 / 11 moles C3H8

Which diagram is the correct electron dot diagram for magnesium?

Which statement best describes electrolysis? Electrolysis stores electrons in an aqueous solution. Electrolysis converts chemical energy into electrical energy. Electrolysis separates protons and electrons in an electrolyte.

Why can xenon expand its octet to form compounds but neon can't