Be sure to answer all parts. use the following values of standard entropies and δs o rxn to determine the missing standard entropies. (a) k(s) → k(l) δs o rxn = 7.9 j/k · mols o (k(s)) = 63.6 j/k · mols o (k(l)) = ? j/k · mol (b) 2s(rhombic) + cl2(g) → s2cl2(g) δs o rxn = 44.74 j/k · mols o (s(rhombic)) = 31.88 j/k · mol s o (cl2(g)) = 223.0 j/k · mols o (s2cl2(g)) = ? j/k · mol (c) o2(g) + 2mgf2(s) → 2mgo(s) + 2f2(g) δs o rxn = 140.76 j/k · mols o (o2(g)) = 205.0 j/k · mol s o (f2(g)) = 203.34 j/k · mols o (mgo(s)) = 26.78 j/k · mols o (mgf2(s)) = ? enter your answer in the box provided. j/k · mol

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons