I'm not going to do 3-5 sentences but practicing speaking clearly is necessary for a group discussion to be successful because when you speak clear everyone can understand you and you if you don't like speaking in front of a class or anything it will stop you from having to say it again. I know this wasn't long but I hope it helps some!!
Answer:
What do all of these polygons have in common?
A. Each appears to have exactly two pairs of parallel sides.
B. Each appears to have exactly one pair of parallel sides.
C. Each appears to be a quadrilateral.
D. Each appears to be a trapezoid.
A.
Explanation:
There are several reasons that Carbon-12 was chosen as the standard for determining the relative mass of other atoms.
- Its abundance on earth
- Carbon-12 is a very stable isotope atom
- Its has the same number of neutrons and protons hence more ideal to use for a precise calculation of <em>amu</em> (atomic mass unit) -
The mass of an atom are based on the ¹/12 mass of Carbon-12.
i tried answering this for you but it told me i was being rude and could not answer this lol
