Answer: Triangles are the strongest shape because they have fixed angles and don't distort very easily. Much of that works because the results from the characteristics of triangles, which are the strongest of all shapes.
Explanation: Hope this helps and I can get brainliest :)
Been awhile since I done these but i believe it looks like this
Actually, the
uncertainty point is when we have to estimate one place smaller than what the
graduated cylinder can accurately read. So in this case, the smallest that we
can accurately read is given by the minor marks of 0.2 mL. So if it is in
between two minor marks we can only estimate the number, therefore the
uncertainty is +/- 0.1ml.
Answer:
81.8 %
Explanation:
The balanced equation for the reaction is
⇒ ![2 NH_3](https://tex.z-dn.net/?f=2%20NH_3)
So to find the number of moles of
we do 6.04kg ÷ 2 = 3.02 moles.
The mole ratio between
and
is 3:2. So to find the number of moles you do
× 2 which gives you 2.0124 moles.
Then you find the mass by doing moles multiplied by Mr: 2.0124 x 17 which gives you 34.21 kg.
Then to find the percentage yield you do:
x 100 = 81.82.......
Which is 81.8 %