How many grams of sodium fluoride (NaF) are dissolved in 3.75 L of a
1.55 M solution?
Molar Mass Na: 22.99 g/mol
Molar Mass E: 19.00 g/mol

Adilute aqueous potassium nitrate solution is

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.

Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.