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Arturiano [62]
3 years ago
8

What is an ion formed from two or more atoms called

Chemistry
1 answer:
Lapatulllka [165]3 years ago
5 0
An iconic bond........
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Consider the following data on some weak acids and weak bases
SpyIntel [72]

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>
6 0
3 years ago
Can someone please help me?
Naya [18.7K]

Answer:

I know its not Oxygen (O2) because we need that gas to breath if not more of that gas! and i know its not helium because it is not very toxic and not a crisis in the world

Your answers are going to be B. and D.

have a nice day!

3 0
2 years ago
Read 2 more answers
15 Points. Pls give a real answer this is due in an hour.
bonufazy [111]

Answer:

This tells us that for every 2 moles of potassium chlorate that are decomposed, then 3 moles of oxygen gas is produced.

7 0
3 years ago
THE ANSWER IS <br> Magnesium hydroxide (Mg(OH)2): 58.33<br><br> Iron(III) oxide (Fe2O3): 159.70
dangina [55]

Answer:

Ok, thanks?

Have a good day

5 0
3 years ago
Which of the following instruments is a combination of a percussion and a stringed instrument?
murzikaleks [220]

Answer:B

Explanation:

3 0
3 years ago
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