Use the periodic table to find the molar mass of each of the following elements. Sodium (Na) : g/mol Oxygen (O) : g/mol Carbon (C) : g/mol

The electrons that are responsible for forming a chemical bond are called

Which of the following statements is false? when the hydrogen ion concentration decreases, the hydroxyl ion concentration also decreases. when acids and bases are mixed, they react with each other to form water and a salt.

Ionic bonds are strong; therefore, ionic compounds

Which mixture can be classified as a homogeneous mixture? Question 2 options: tap water soil sand lemonade

Which substance at STP can be represented by this particle diagram

Which option is true about the effect of polarity on solubility? Select all that apply. Polar solutes dissolve better in water than in oil. Polar solutes have the greatest solubility in nonpolar solvents.

Which change results in a release of energy? 1. The melting of H₂O (S) 2. The boiling of water (L) 3. The evaporation of H₂0 (L) 4. The condensation of H₂0 (G)

What changes nitrogen gas in the air to nitrogen compounds that fall to the ground

Which element has an isotope mass number of 32 and is used as an ecological tracer?

Which laws can be combined to form the ideal gas law? Boyle's law and Charles's law Gay-Lussac's law and Avogadro's law Charles's law, Avogadro's law, and Boyle's law Dalton's law, Gay-Lussac's law, and Avogadro's law