<em>Answer:</em>
- Such a alkane has only one ring that is cyclooctane.
<em>Explanation:</em>
- The general formula of alkane is CnH2n+2. Such general formula is applicable for only open chain alkane.
- When alkane form ring, then this formula does not remain valid.
- The general formula of Cycloalkane is CnH2n.
As in this case, there are 8-carbon and 16-hydrogen that is according to above cycloalkane formula.
Answer: I Think It's D) The change of solubility with temperature is the same for all substances.
Answer:
76%
Explanation:
The lab grade of the student is made of report sheets, lab exams and lab quizzes with different weights for each score. To find the lab grade we need to multiply each score with respective weight. He has 86% in the report sheet which has 35% weight, 66% in the lab exam which have 35% weight, and 76% in the quizzes which have 30% weight. The score will be:
86%*35% + 66%*35% + 76%*30%= 76%
His score for the lab grade will be 76%
For the first question nail rusting is not an example of physical change