The question is incomplete. The complete question is attached below.
Answer : The correct option is, (A) 7-chloro-3-ethyl-4-methyl-3-heptene
Explanation :
The rules for naming of alkene are :
First select the longest possible carbon chain.
The longest possible carbon chain should include the carbons of double bonds.
The naming of alkene by adding the suffix -ene.
The numbering is done in such a way that first carbon of double bond gets the lowest number.
The carbon atoms of the double bond get the preference over the other substituents present in the parent chain.
If two or more similar alkyl groups are present in a compound, the words di-, tri-, tetra- and so on are used to specify the number of times of the alkyl groups in the chain.
The given compound name will be, 7-chloro-3-ethyl-4-methyl-3-heptene.
The structure of given compound is shown below.
It is more likely to be 9 as pH 8 and above are Alkali (Base) and alkali solutions don't tend to react with metals.
Hope this helps :) ~
<span>oxidation, because oxygen is combining with the banana peel, and the peel is reacting with the air.</span>
<span>A cement is a binder. It is a substance that sets and
hardens and can bind other materials together. Cement is usually in a form of
powder which is being mixed with other materials and water. The most important
uses of cement are as a component in the production of mortar in masonry, and
of concrete, a combination of cement and an aggregate to form a strong building
material. Cements used in construction can be characterized as being either
hydraulic or non-hydraulic, depending upon the ability of the cement to set in
the presence of water.</span>
Answer:
Repeat the experiment several times to make sure the results are reliable.
Explanation:
The best way for Chris to validate his results is to repeat the experiment several times to make sure the results are reliable.
For a hypothesis to be accepted it must be testable.
- The more standard data points obtained from an experiment, the more the reliability index increases.
- Chris should not just conclude with one data point.
- In fact, most scientist prefers to use up to 30 data points before reliability can be assumed.
- So, Chris should repeat the experiment as much as possible to make sure the results are reliable.