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lions [1.4K]
3 years ago
13

What is halogens?why are they called very active non metals?

Chemistry
1 answer:
grin007 [14]3 years ago
6 0
Any of the elements occupying group 17 on the periodic table. They form highly acidic compounds with hydrogen.


The elements are:
Fluorine (F)
Chlorine (Cl)
Bromine (Br)
Iodine (I)
Astatine (At)
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State the optimum pH for sucrase activity and describe how sucrase activity changes at more acidic and more alkaline pH values.
kvv77 [185]

Answer:

Explanation:

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What is it called when a rock is rusting
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3 years ago
Whats the strongest base on the ph scale? A.HCI B.NaOH C.blood D.saliva
Zepler [3.9K]

Answer:

NaOH

Explanation:

The sodium hydroxide is strongest base because it fully dissociate into ions.

It dissociate to gives the sodium and hydroxyl ions and solution became more basic.

                               NaOH → Na⁺(aq) + OH⁻(aq)

Its pH is 12. It is also known as caustic soda.

Other given Options:

The pH of blood is vary from 7.35 - 7.45. it is slightly alkaline.

The pH of HCl is 3.

The pH of saliva is 6.2 - 7.6.

We know that neutral pH is 7 the pH less than 7 is acidic so HCl is acidic because its pH is 3.

The pH is greater then 7 is basic so saliva and blood are basic but less than the NaOH.

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4 years ago
The mass of a hypothetical planet is 1 100 that of the earth and it’s radius is 1 4 that of earth. If a person weighs 500 n on e
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