2. which one of the following chemical equations is balanced? a. 2nacl + h2so4 → hcl + naso4 b. nh3 + h2o → 2nh4oh c. 2na + s → 2nas d. koh + h2so4 → khso4 + h2o

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.

Which of the following is true about the speed of light? it depends on the wavelength.

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products