Method of separate of green solution from leaves and alcohol from warer

What neutral atom is isoelectronic to mn+4

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

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?