<span> buffers resist changes in pH
levels, they are used to regulate biological functions that only occur
at certain pH levels.</span>
<em>V = 151 mL = 151 cm³</em>
<em>d = 0,789 g/mL = 0,789 g/cm³</em>
--------------------------------------
d = m/V
m = d×V
m = 0,789×151
<u>m = 119,139g</u>
This problem is providing the ratio of nitrogen to oxygen by mass in nitrogen monoxide, NO, as 7.0:8.0 and asks for the same ratio but in NO₂ and N₂O₇. After doing the calculations, the results are 7.0:16.0 and 1.0:4.0 respectively.
<h3>Mass ratios:</h3>
In chemistry, one can calculate the mass ratios in chemical formulas according to the atomic mass of each atom. In such a way, one knows the mass ratio of nitrogen to oxygen in NO is 7.0:8.0 because we divide the atomic mass of nitrogen by oxygens:
Now, for chemical formulas with subscripts, one must multiply the atomic mass of the element by the subscript in the formula, which is the case of NO₂ and N₂O₇ as shown below:
Therefore, the results for NO₂ and N₂O₇ are 7.0:16.0 and 1.0:4.0 respectively
Learn more about atomic masses: brainly.com/question/5566317
The question is incomplete, the complete question is;
Efforts to restore wetlands and forests along the coast will most likely _______. a. benefit the economy by providing jobs b. improve wildlife populations c. reduce soil erosion and flooding in coastal areas d. all of the above
Answer:
ALL OF THE ABOVE.
Explanation:
If wetlands and forests are restored, timber workers will be in business and farmers who cultivate crops on wetlands will have jobs. Thus restoring forests and wetlands could create new jobs.
Also, with the restoration of forests, wild life population will improve because their habitat has been restored. Similarly, the forest trees will contribute to curbing menaces caused by erosion and flooding in coastal areas since trees naturally reduces the speed of surface runoff and wind.
Pretty sure its 30 percent
