There are two buffer sol. 1) one is prepared from 50 ml of NH4OH sol.(c=0.1 mol/l) and 50ml of NH4Cl sol. (C =0.1mol/l)
2) second one is prepared from a 50 ml of NH4OH sol. (C=0.05 mol/l) and 50 ml of NH4Cl sol. (C=0.05mol/l).
Which solution is more resistant in respect with strong base addition?

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

How many moles of bromine are needed to produce 3.23 moles of potassium bromide

Which sample at stp has the same number of atoms as 18 liters of ne at stp