Rutherford and his colleagues fired a beam of small, positively charged alpha particles at thin gold Some of these alpha particles were deflected at angles as they passed through the foil What conclusion did Rutherford and his colleagues draw from their results ?

Identify and describe the three ways that mutations affect organisms.

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction