Potassium burns a violet color
Answer:
The mass of zinc sulfide produced is 
Explanation:
From the question we are told that
The mass of zinc is 
The mass of sulfur is 
The molar mass of
is a constant with value 65.39 g /mol
The molar mass of
is a constant with value 32.01 g/mol
The molar mass of
is a constant with value 97.46 g/mol
The reaction is

So from the reaction
1 mole of
react with 1 mole of
to produce 1 mole of 
This implies that
65.39 g /mol of
react with 32.01 g/mol of
to produce 97.46 g/mol of 
From the values given we can deduce that the limiting reactant is sulfur cause of the smaller mass
So
0.250 g of
react with 0.250 of
to produce
of 
So


Thus the mass of the mass of zinc sulfide produced is

Basically, the answer for this would be N or NITROGEN. If we combine nitrogen with chlorine, what happens is that, it can attract more chlorine electrons towards itself. The reason is that, nitrogen is considered more electronegative compared to chlorine. So best answer for this is the first option.
Answer:Do you think the climate change has only to do with human society or is it also occuring "naturally"?
I was in Germany on december of last year (2011) and I was surprised because it didn´t snow. I read about the melting of the principal glacier and it will raise the ocean water levels. There are people that blame only human being for the climate changes but I wish to know how much we are responsible for that.
Climate Change
Explanation: