On may 10th it's gonna be my birthday and my mum don't know what to get me what do u think i would like my bio: creative,artisti
1 answer:
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Answer:
D
Explanation:
We must study the reaction pictured in the question closely before we begin to attempt to answer the question.
Now, the reaction is a free radical reaction. This implies that only one electron is transferred. The transfer of one electron is shown using a half arrow rather than a full arrow. The both species are radicals (odd electron species) and contribute one electron each.
Hence we must show electron movements in both species using a half arrow.
Answer:
There are 17.64% students received B+ grades.
Explanation:
It is given that,
Total number of students in chemistry class is 17
We need to find the percentage received by B+.
Number of students having B+ grades are 3 (from graph)
Required percentage =
So, there are 17.64% students received B+ grades.
Answer:
The diameter of the hydrogen
Explanation:
From the given information:
Using the concept of Bohr's Model, the equation for the angular momentum can be expressed as:
Where the generic expression for angular momentum is:
L = mvr.
replacing the value of L into the previous equation, we have:
----- (1)
The electron in the hydrogen atom posses an electrostatic force which gives a centripetal force.
----- (2)
replacing the value of v in equation (1) into (2), and taking r as the subject of the formula, we have:
For ground-state n = 1
Therefore, the diameter of hydrogen d = 2r