Part IV: Calculations 1. (12 points) Silicon has three common isotopes. The masses of the first two isotopes and
percent abundances are as follows: 27.9769 amu, 92.23%
28.9765 amu, 4.67%
If the atomic mass of silicon is 28.0855 amu, what is the percent abundance of the third
isotope? What is its atomic mass?

24 points and brainliest to anyone who can answer under 10 minutes with best ! the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.

Explain what happens at the saturation point when adding salt to water at room temperature.

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.