Which scientist rearranged the periodic table by the number of protons present in an element? A. Dimitri Mendeleev
B. William Ramsey
C. JW Strutt
D. Henry Moseley

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.

Describe the properties of sodium, chlorine, and sodium chloride