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Yuri [45]
2 years ago
10

Determine whether each statement is an example of a physical change or a chemical change. Newspaper yellows in the sun. Physical

chemical Wax melts on a hot stove. Physical chemical.
Chemistry
1 answer:
miss Akunina [59]2 years ago
7 0

Answer:

the newspaper one is a chemical change because the chemicals in the paper have reacted with something and turned a different color. the wax one is a physical change because it is a change in the phase of matter, which is always a physical change (still the same substance chemically)

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6.022*10^23 is the answer
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Which of the following elements can form diatomic molecules held together by triple covalent bonds?
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Nitrogen can form a diatomic molecule held together by triple bonds.
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What is the partial pressure of C?<br> atm C
s344n2d4d5 [400]

The partial pressure of carbon is 45 mm Hg.

Explanation:

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  • There is a formula for measuring partial pressure . As we know total pressure means summation of the pressure of all the gases included .
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How many grams will be needed​
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Each of the following names is wrong. Draw structures based on them, and correct the names:(b) 1,1,1-trimethylheptane
devlian [24]

The correct IUPAC name of 1,1,1-trimethylheptane is 2,2-dimethyloctane.

<h3>IUPAC NAME:</h3>

It is systematic way of nomenclature of organic compounds.

It is based on the position of functional groups, preference of the functional group, long or short chain of carbon, preference of double bond, single and triple bond, branching of carbon chain, etc.

The given compound is 1,1,1-trimethylheptane.

The given name is wrong according to IUPAC name because the numbering of carbon atom should be done in that way in which the carbon atom chain is largest.

Here, in this case the numbering is done from right side. Thus the largest carbon chain have 8 carbon atom.

If the numbering is done according to the question, number of carbon atom in straight chain is 7.

Thus, we concluded that the Correct IUPAC name of 1,1,1-trimethylheptane is 2,2-dimethyloctane.

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brainly.com/question/14094007

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