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Alisiya [41]
3 years ago
10

4.1.2 Quiz: What is scientific notation?

Chemistry
1 answer:
Eddi Din [679]3 years ago
3 0

Answer:

D. Scientific notation is a way of writing large and small numbers

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What gives bases their properties?
svp [43]
Bases are iconic compounds that produce negative hydroxide ions (OH-) when dissolved in water. Bases taste bitter, feel slippery, and conduct electricity when dissolved in water.... Bases turn red litmus paper blue. The strength of bases is measured on the pH scale.
8 0
3 years ago
URGENTTTTT What is the correct formula when Al+3 combines with CrO4-2
PIT_PIT [208]
A and C are incorrect because they are not complete transfer of valence electrons. Ionic bonds best to form a neutral molecule
8 0
3 years ago
Which of the following bases is the STRONGEST? The base is followed by its Kb.A. C6H5NH2, 4.0 × 10-10 B. NH3, 1.76 × 10-5 C. CH3
Kamila [148]

Answer:

(D) (CH3CH2)2NH

Explanation:

In order to decide which base is strongest we need to calculate its PKb

PKb = -log [Kb]

A large Kb value and small PKb value gives the strongest base

 Compound                   Kb                           PKb      

(A) C6H5NH2 -         4 x 10^-10                      9.349

(B) NH3                     1.76x 10^-5                    4.754

(C) CH3NH2              4.4x 10^-4                     3.357

(D) (CH3CH2)2NH   8.6x 10^-4                     3.066

(E) C5H5N                  1.7x10^-9                      8.77  

Clearly (CH3CH2)2NH is the strongest base.

3 0
2 years ago
If you have a negative ion, what happened to the outer shell of the atom?
Nastasia [14]
It will lose them and become stable
8 0
3 years ago
Is the center of an atom is called the nucleus?​
Nuetrik [128]

Answer:

The center of the atom contains the nucleus so yes

Explanation:

3 0
3 years ago
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