8. Medical technicians often use lead shields to protect themselves. This is because they are being exposed to . a. Alpha radiation
b. Beta radiation
c. Gamma radiation
d. Solar radiation

Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.