What is always true of a combustion reaction?

carbon dioxide will be produced

the reaction absorbs energy

oxygen gas must be one of the reactants

one reactant must contain carbon

Which chemical reaction model is flawed and why? A) 4C2+S8 - > 4CS2 B) 2Fe+3Cl2 - > 2FeCl3 C) 2Na+Cl2 - > 2NaCl D) P4O10+6H2O - > 4H3PO4

How many mol of hydrogen in 2.7 mol of caffeine?

Which of the following explains how Hahn, Strassman, and Meitner tried to influence the use of their discovery? A. They opposed the use of energy released during nuclear fission for military purposes. B.

Which state of matter has the least energetic molecules?

What volume would 4 moles of gas occupy at stp? do this without a calculator. you may need to use longhand calculations. the question is designed to tolerate reasonable rounding?

Predict at least two circumstances (outside influences) that would cause a system in equilibrium to change the concentrations of its reactants or products.,

How many atoms are there in 2.3 grams of H?

Which of the following would dissolve in water, and why? None of these substances would dissolve in water Candle wax, it is a nonpolar substance Motor oil, its primary IMF is London Dispersion Forces Acetic acid, it ionizes into ions when added to

Have a region surrounding the central area called

1. Simplify. | A. O 16 B. O C. 04 D. O