Energy and states of matter
based on the simulation playing identify the temperature at which each of the following is a:
substance
solid
liquid
gas
neon
argon
oxygen
water
explain your prediction. what factors did you take into consideration for your prediction ? list them

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

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

What is the chemical formula of magnesium bromide? a. mgbr2 b. mgbr c. mg2br2 d. mg2br