Aradioactive isotope x has a half-life of 36 years. how much x would remain after 108 years, if we started with 500 grams? a. 250 gram b. 0.500 grams c. 62.5 grams d. 125 grams

In pqr m< p=60 m< q= 30 and m

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point

Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)