A chemist performs a combustion reaction in which he burns 50.0g of magnesium in the presence of oxygen. If he
were to isolate and measure the mass of the magnesium
present in the product of the reaction, how much should he
find?
Select one:
1) 0.0g
2) 100.0g
3) 50.00
4) 25.09

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Classify this reaction: 2al+n2-> aln.