If a sample is thought to be several million years old, which method would best to determine its absolute age? a. c-14/c-12 b. ar-40/k-40 c. pb-206/u-238

Blank allows you to do calculations for situations in which only the amount of gas is constant a)boyle's law b)combined gas law c)ideal gas law d)dalton's law

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery