Hello I now people need help sometime I’m one of them so here this was worth 92 points so all of them so hope you get. Lot of points. Have wonderful day:)

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

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

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?