Which is not one of the eight most common elements in Earth's continental crust? silicon carbon aluminum oxygen

According to the equation for this chemical reaction, what does the 2 in front of 2Ag tell us?

What is the most abundant salt in seawater

Consider this reaction: 3Fe2O3 (s) + CO (g) → 2Fe3O4 (s) + CO2 (g). Which of the following would increase the rate of the reaction?

What is the passage from the mouth to the larynx and esophagus? •pharynx •trachea •bronchi •alveoli

Does anyone understand Hybrid Orbitals? Draw for yourself the energy-level diagram showing the hybrid orbitals formed in the C atom when it bonds.

Will ag2so4 precipitate when 100 ml of 5.0*10-2 m agno3 is mixed with 10 ml of 5.0*10-2mna2so4 solution?

How many grams of H₂ are produced with the reaction of 36 grams of water? 2 Na + 2 H20 - > 2 NaOH + h2

Which statement is the best description of a chemical bond? A. A chemical bond connects 2 different molecules. B. A chemical bond holds atoms together. c. A chemical bond turns molecules into atoms. D. A chemical bond identifies atoms in a molecule.

The energy of an electron varies depending upon which energy level that electron occupies. True or False.

What is the mass (in grams) of 9.07 * 1024 molecules of methanol (CH3OH) ?