How many atoms are in a sample of 72.8 grams calcium (ca)? 1.76 × 1027 atoms 1.09 × 1024 atoms 4.85 × 10-21 atoms 3.02 × 10-24 atoms

What is impossible to do with a hypothesis

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.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3