What term described the movement of around the once a year

Chemistry

2 answers:

gulaghasi [49]3 years ago

4 0

which describes a term is rotation earths movement around the sun

Brilliant_brown [7]3 years ago

3 0

It takes one year to go around the Sun one complete time. ... Revolution of the Earth: The movement of the Earth around the Sun in a fixed orbit is ... is added to the month of February once in every four years forming a leap year with 366 days.

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Rocks are solids composed of one or more minerals true or false

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The answer is true
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Electrochemistry might be considered a subspecialty of which of the following areas of chemistry

riadik2000 [5.3K]

Hey there!

 Electrochemistry might be considered a subspecialty of which of the following areas of chemistry?

Answer: 
D. Organic chemistry

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What are accounts for physical properties?

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Rank the compounds in each set in order of increasing acid strength.

Viktor [21]

Answer:

See explanation

Explanation:

For this question, we have to remember the effect of an atom with high electronegativity as "Br". If the "Br" atom is closer to the carboxylic acid group (COOH) we will have an inductive effect. Due to the electronegativity of Br, the electrons of the C-H bond would be to the Br, then this bond would be weaker and the compound will be more acid (because is easier to produce the hydronium ion $H^+$ ).

With this in mind, for A in the last compound, we have 2 Br atoms near to the acid carboxylic group, so, we will have a high inductive effect, then the C-H would be weaker and we will have more acidity. Then we will have the compound with only 1 Br atom and finally, the last compound would be the one without Br atoms.

In B, the difference between the molecules is the position of the "Br" atom in the molecule. If the Br atom is closer to the acid group we will have a higher inductive effect and more acidity.

See figure 1

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3 years ago

Which substance is a binary acid

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It is known that acids compounds contains hydrogen and produces hydrogen ion in water. A binary acid however is an acid that have two elements, one of the element has a hydrogen attached to it. Examples of binary acids are hydrogen fluoride (HF), hydrogen bromide (HBr) and hydrogen sulfide (H2S). In naming a binary acid, it has two rules; one, as pure compounds and two, as acid solutions. For pure compounds, start with the name ‘hydrogen’ and end the anion name with ‘-ide’. For acidic compounds, start with ‘hydro-‘, end the anion with ‘-ic’ and add ‘acid’.

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