You used a variety of media with a NaCl concentration ranging from 0.5% to 15%. Which of these media would have the lowest water activity? a. 0.5% NaCl
b. 15% NaCl
c. 10% NaCl
d. 5% NaCl

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

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.

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.