Answer:
D. bromine (Br)
Explanation:
Bromine is an element of halogen group.
Halogens, or "salt-formers," are located in group 17 of the periodic table. The halogens have the following properties:
1) They have low melting points and low boiling points.
2) They exist as diatomic molecules in the gas phase.
3) They have seven electrons in their outermost shell, which means they have seven valence
electrons.
4) They are highly reactive nonmetals.
5) They tend to gain electrons and form negative ions.
Thus the given properties are of Bromine.
9.5 x 10^-4 is the answerZ
Answer:
b < c < a < d
Explanation:
The weak acid with the lowest pKa will be the most acidic. In the other way, the conjugate base which the acid is weak will be strong.
The weak base with the lowest pKb will be the most basic. And the conjugate base of the weak base will be a strong acid.
Ka Acetic acid = 1.8x10-5
Ka HCN = 1.9x10-10
Kb pyridine = 1.7x10-9
Kb NH3 = 1.8x10-5
NH4Br is the conjugate base of a weak base. That means is a strong acid.
NH4Br has the lowest pH
NaBr is the conjugate base of a strong acid, HBr. That means NaBr is neutral
The most basic between the conjugate base of the acetic acid, NaCH3CO2 and KCN is KCN because the acetic acid is the stronger acid regard to HCN.
The rank is:
NH4Br < NaBr < NaCH3CO2 < KCN
<h3>b < c < a < d</h3>
What are the options? I can try to give you an answer if options are provided.
Answer:
High trainability allows the owner to train the dog to handle certain things--some dog can be trained as police dogs and can be taught various jobs, so high trainability is very important
When a dog is Viscous, the dog will keep people away from your house, they will be able to keep danger away and because they are viscous they will be able to handle danger.
Loud bark- A loud bark from a dog can help alert other people when there is a intruder, it makes alot of noise so they can attract attention easily.
Quiet Bark- Ideal for pet owners who do not like noise, they bark quietly so they are not a bother to work or anyone doing something.
