I'm guessing it's C-Oxygen because in order to burn something, or create fire, oxygen HAS to be present.
Ernest Shackleton's South! primarily uses the writing structure of "problem and solution".
Answer:
8.99×10^-7m
Explanation:
The wavelength can be calculated using the expression below
E=hcλ
Where E= energy= 2.21 x 10^-19 J.
C= speed of light= 3x10^8 m/s
h= planks constant= 6.626 × 10^-34 m2 kg / s
E=hcλ
λ= E/(hc)
Substitute for the values
λ=( 2.21 x 10^-19 )/(6.626 × 10^-34 × 3x10^8 )
= 8.99×10^-7m
Because each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce.
Answer:
the discovery will always need to be tested more where if you're investigating you should already be in a more controlled environment
