When do the results of a risk-benefit analysis indicate that a technology should be used?

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.