1. Explain the difference between genetic, environmental, social, and pathogenic factors. 2. How do pathogens spread?

3. How can we, as humans, prevent transmission of pathogens?

4. List three ways the environment can affect personal health.

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)