How many grams of CO2 (Molar Mass = 44.01 grams) are in 1.8x1024 molecules of CO2 ?

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

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.

What is the mass of 0.46 mil of mgcl2