An unknown substance is a white solid at room temperature and has a melting point of 78 °C. Which of the following substances is most likely to be the identity of the unknown sample? six white pellets A. Naphthalene, a molecular solid with the formula C10H8 B. Silica, a network solid held together by covalent bonds with the formula SiO2 C. Calcium chloride, an ionic compound with the formula CaCl2 D. Water, an molecular compound with the formula H2O

Use the above pedigree for questions 1,2, and 3 1. what kind of genetic disorder is represented in the pedigree? a. recessive b. dominate refer to the pedigree in question 1. 2. is the mutated gene in this disorder located on a sex chromosome (x or y) or an autosome? a. sex chromosome b. autosome refer to the pedigree in question 1. 3. which generation has individuals that you are certain are heterozygous for the mutated gene? a. generation 1 b. generation 2 c. generation 3