Acity planner needs a new method for cleaning a town’s water supply. he hires a scientist to research the issue. because the scientist is being paid by the city planner, her research is not valid.

true

false

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.