Which of these are true. a) in molecular compounds, more heat is needed to separate their molecules than is needed to separate ions. b) molecular compounds melt at much higher temperatures than do ionic compounds. c) molecular compounds boil at much higher temperatures than do ionic compounds. d) in molecular compounds, most are poor conductors of electricity when dissolved in water

100mg magnesium reacts with 20ml of 1.0m hcl

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent