Answer:
Students have investigated what's going on in the fictional town of Westfield, they learned that the mysterious reddish-brown substance in the water is actually rust, which formed because of a chemical reaction between the iron pipes and the fertilizer substance in the water.
Explanation:
Answer:
It would change the charge of the atom.
Explanation:
Added electrons cause atoms to be negatively charged, lost electrons cause atoms to be positively charged.
Answer:
Monera
Explanation:
This organism is only bacteria (bacilli bacteria). They are simple unicellular organism; they have no nucleus. They barely have organelles. These organism in the garbage are heterotrophic /saprophytic and cause the composition of the organic molecules (such as the discarded foods).
<u>Answer:</u> The average atomic mass of element bromine is 80.4104 amu.
<u>Explanation:</u>
Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.
Formula used to calculate average atomic mass follows:
.....(1)
- <u>For _{35}^{79}\textrm{Br}[/tex] isotope:</u>
Mass of 
isotope = 78.9183 amu
Percentage abundance of isotope = 50.69 %
Fractional abundance of isotope = 0.5069
- <u>For
isotope:</u>
Mass of isotope = 80.9163 amu
Percentage abundance of isotope = 49.31 %
Fractional abundance of isotope = 0.4931
Putting values in equation 1, we get:
![\text{Average atomic mass of Bromine}=[(78.9183\times 0.5069)+(80.9163\times 0.4931)]](https://tex.z-dn.net/?f=%5Ctext%7BAverage%20atomic%20mass%20of%20Bromine%7D%3D%5B%2878.9183%5Ctimes%200.5069%29%2B%2880.9163%5Ctimes%200.4931%29%5D)
Hence, the average atomic mass of element bromine is 80.4104 amu.
Answer:
b
Explanation:
because motions make things hotter
