Answer:
See Explanation
Explanation:
For SF6;
Since;
1.25 g of S corresponds to 4.44g of F
1 g of sulphur corresponds to 1 * 4.44/1.25 = 3.55
For SF4;
Since;
1.88 g of S corresponds to 4.44g of F
1 g of sulphur corresponds to 1 * 4.44/ 1.88 = 2.36
Hence;
Mass of oxygen per gram of sulphur in SF6/Mass of oxygen per gram of sulphur in SF4
=
3.55/2.36 = 1.5
Hence the law of multiple proportion is obeyed here.
Its very easy, all we need is the following formula
c= λ x ν
c= speed of light
λ= wavelength
ν= frequency
we can rearrange the formula to solve for the unknown asked.
ν= c/λ
v= (2.998 x 10^8)/ (3.55 x 10^-8)= 8.45 x 10^15
A. All atoms of all elements are the same size. B. Atoms of different<span> elements always combine in one-one ratios. C. Atoms of the same element are always</span>identical<span>. Which of the following was originally a part of Dalton's atomic theory, but had to be revised about a century ago?</span>
The answer is B. 87.5
the mean is the average of numbers so you add up all the numbers then divide it by how many numbers there are