I think hand picking is best for this case.another method can be done in which first u have melt those candies with marbles.u will hart candy will melt quickly.so,when candies melt ,u will find marbles are still solid but candies are in liquid form .now take a net and purify that solution(candies and marbles).now the candies will pass through net but marbles will stuck in upper net.remove marbles now
Answer:
10.5 moles of Nitrogen gas is produced
Explanation:
Number of moles = mass / molar mass
molar mass of Nitrogen = 14g/mol
mass produced= 147g
moles= 147/14= 10.5moles of Nitrogen gas produced
Answer:
sodium
Explanation:
this is because sodium is neutral ....hence the pH formed will be 7
Answer:
Empirical formulas can be determined from the percent composition of a compound. In order to determine its molecular formula, it is necessary to know the molar mass of the compound. Chemists use an instrument called a mass spectrometer to determine the molar mass of compounds.
That John Dalton was an English chemist that was most famous for proposing atomic chemistry.He proposed atomic theory in 1803,which states that all matter is composed of small indivisible particles called atoms.
