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ArbitrLikvidat [17]
3 years ago
6

State evidence from the bright-line spectra that indicates element A is not present in

Chemistry
1 answer:
Schach [20]3 years ago
4 0
After studying the graph,the evidence from the bright line spectra that indicates element A is not present in the mixture is 11 the lines of A are not present in the mixture 700 nm is missing. 
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6 0
4 years ago
Using the balanced equation N2+O2=2NO, how many grams of NO can be produced when 25.0 grams of N react?
Oxana [17]

Answer:

53.55gNO

Explanation:

Hello there!

In this case, according to the given chemical reaction, it is possible for us to calculate the produced grams of nitrogen monoxide by starting with 25.0 g of nitrogen via their 1:2 mole ratio and the molar masses of 30.1 g/mol and 28.02 g/mol, respectively and by some stoichiometry:

=25.0gN_2*\frac{1molN_2}{28.02gN_2}*\frac{2molNO}{1molN_2}*\frac{30.01 gNO}{1molNO}\\\\=53.55gNO

Best regards!

8 0
3 years ago
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So for the same amount of heat added to 5.00 g samples of metals, the metal with the lowest specific heat capacity would experience the smallest temperature change.

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