The width, length, and height of a large, custom-made shipping crate are 1.22 m, 3.22 m and 0.83 m, respectively. The volume of the box using the correct number of significant figures is _____ m^3. 3.26 3.3 3.261 3.2606 3.26057 What does “X” represent in the following symbol? ^80_35 X bromine scandium selenium chlorine mercury
Volume of crate = length*breadth*height (since cuboidal in shape)
length = 1.22m
breadth =3.22m
height =0.83m
Volume =1.22*3.22*0.83
=3.3m3
When we multiply varoius measurements then number of significant figures in final result is same as that in measurement with minimum number of significant figures and in our case minimum number of significant figures is 2 that is present in value of height (0.83).
Thats why the answer is 3.3m3 ( two significant figures)
19. 8035X – This is symbolic representation of atoms , where the subscript denotes the atomic number .
35 is atomic number of Bromine (Br).
So the the correct answer is bromine
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