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uranmaximum [27]
1 year ago
14

Give the name and symbol or formula of a Group 7A(17) element or compound that fits each description or use:(c) Weakest hydrohal

ic acid
Chemistry
1 answer:
olga2289 [7]1 year ago
8 0

Hydrofluoric acid (HF) is a Group 7A(17) element or compound that fits each description or use:(c) Weakest hydrohalic acid.

When hydrohalic acids dissolve in water to produce acids, they are frequently referred to as hydrogen halides. They have the formula HX, where X can be any of the halogens. They are diatomic organic compounds. Iodine, chlorine, bromine, and fluorine are a few of the halogens.

Given that fluorine is the most electronegative of the four halides and iodine the least, it seems contradictory that the acidity of the series of hydrohalic acids, HF, HCl, HBr, and HI, increases from HF through HI.

The acid hydrofluoric acid (HF) is the weakest hydrohalic acid. Its status as a weak acid is primarily due to the fact that it does not entirely dissociate in water. In essence, it defies the description of a strong acid. On the other hand, after dissociation, the ions it creates are firmly bonded to one another.

To know more about hydrohalic acid refer to:  brainly.com/question/12210499

#SPJ4

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PLEASE HELP!?Consumers must eat other organisms for energy. Which organisms are consumers in this food chain?
Vitek1552 [10]

Answer:

Consumers must consume other organisms to get the food that they need and are known as Heterotrophs as they cannot make their own glucose. These consumers eat producers (plants). Herbivores are considered as first order consumers. These consumers eat consumers and producers (animals and plants).

4 0
2 years ago
What would be the major product obtained from hydroboration–oxidation of the following alkenes?
zmey [24]

Answer:

a. 3-methylbutan-2-ol

b. 2-methylcyclohexan-1-ol

Explanation:

For this reaction, we must remember that the hydroboration is an <u>"anti-Markovnikov" reaction</u>. This means that the "OH" will be added at the <em>least substituted carbon of the double bond.</em>

In the case of <u>2-methyl-2-butene</u>, the double bond is between carbons 2 and 3. Carbon 2 has two bonds with two methyls and carbon 3 is attached to 1 carbon. Therefore <u>the "OH" will be added to carbon three</u> producing <u>3-methylbutan-2-ol</u>.

For 1-methylcyclohexene, the double bond is between carbons 1 and 2. Carbon 1 is attached to two carbons (carbons 6 and 7) and carbon 2 is attached to one carbon (carbon 3). Therefore<u> the "OH" will be added to carbon 2</u> producing <u>2-methylcyclohexan-1-ol</u>.

See figure 1

I hope it helps!

8 0
3 years ago
For many years chloroform (CHCl3) was used as an inhalation anesthetic in spite of the fact that it is also a toxic substance th
Debora [2.8K]

Hey there!:

Molar mass:

CHCl3 = ( 12.01 * 1 )+ (1.008 * 1 ) + ( 35.45 * 3 ) => 119.37 g/mol

C% =  ( atomic mass C / molar mass CHCl3 ) * 100

For C :

C % =  (12.01 / 119.37 ) * 100

C% = ( 0.1006 * 100 )

C% =  10.06 %

For H :

H% = ( atomic mass H / molar mass CHCl3 ) * 100

H% = ( 1.008 / 119.37 ) * 100

H% = 0.008444 * 100

H% = 0.8444 %

For Cl :

Cl % ( molar mass Cl3 / molar mass CHCl3 ):

Cl% =  ( 3 * 35.45 / 119.37 ) * 100

Cl% =  ( 106.35 / 119.37 ) * 100

Cl% = 0.8909 * 100

Cl% = 89.9%


Hope that helps!

4 0
3 years ago
Which highly reactive gas was probably absent from the Earth's primitive atmosphere? O2 (oxygen gas) water vapor methane carbon
rosijanka [135]
Oxygen gas was most likely absent from Earth's primitive atmosphere.  The current theory is that the Earth's early atmosphere was composed of mainly carbon dioxide and methane due to the high volcanic activity.  Cyanobacteria and their use of photosynthesis was what caused earth's atmosphere to become oxygen enriched.
I hope that helps.
6 0
3 years ago
Jacob floated a long steel sewing needle on a small piece of cork in a glass of water. He noticed that as he turned the glass ar
max2010maxim [7]

Answer:

<em>Hello, Your answer will be </em><em>B) Jacob's backyard is on the north side of his house.</em>

<em>Hope That Helps!</em>

7 0
3 years ago
Read 2 more answers
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