An environmental scientist studies the environment - you can see that in the beginning of the sentence :)
Answer: keep a current from passing out of the wire
Explanation: plastic is an insulator and will not conduct electricity
<span>It must lose two electrons and become an ion.</span>
Question: <span>What is the electron configuration for Krypton
[Ar] 3d10 4s2 4p6
Krypton chemical element with the symbol of Kr. Also the atomic number for Krypton is 36. It is a colorless and odorless gas. And is used in fluorescent lamps.
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Answer:
2.4 ×10^24 molecules of the herbicide.
Explanation:
We must first obtain the molar mass of the compound as follows;
C3H8NO5P= [3(12) + 8(1) + 14 +5(16) +31] = [36 + 8 + 14 + 80 + 31]= 169 gmol-1
We know that one mole of a compound contains the Avogadro's number of molecules.
Hence;
169 g of the herbicide contains 6.02×10^23 molecules
Therefore 669.1 g of the herbicide contains 669.1 × 6.02×10^23/ 169 = 2.4 ×10^24 molecules of the herbicide.
