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4vir4ik [10]
3 years ago
6

Why the radius of an atom cannot be determined precisely ?

Chemistry
1 answer:
kow [346]3 years ago
7 0
The radius of an atom cannot be determined precisely because the atomic number would or might have an isotope. The results won't be accurate. 
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Use of chemical substance in our daily life their advantages and disadvantages​
vekshin1

Answer:

Explanation:

By observing chemical reactions, we are able to understand and explain how the natural world works. Chemical reactions turn food into fuel for your body, make fireworks explode, cause food to change when it is cooked, make soap remove grime, and much more.

3 0
3 years ago
A wave has a frequency of 3,5MHz and a wavelength of 85,5 m. What is the wave velocity through
Yuki888 [10]

Answer:

velocity = 29925×10⁶ m/s

Explanation:

Given data:

Frequency = 35 MHz

Wavelength = 855 m

Velocity = ?

Solution:

MHz to Hz

35×10⁶ Hz

Formula:

<em>velocity = Wavelength × Frequency</em>

velocity = 855 m × 35×10⁶ Hz

velocity = 29925×10⁶ m/s

Hz = s⁻¹

5 0
3 years ago
The acid dissociation constant ka for an unknown acid ha is 4.57 x 10^-3 what is the base dissociation constant kb for th econju
SashulF [63]

Answer:

2.19 x 10^-12.

Explanation:-

The relation between Ka and Kb for an acid and it's conjugate base is

Ka x Kb = Kw where Kw = ionic product of water.

So Kb = 10^-14 / (4.57 x 10 ^ -3)

= 2.19 x 10^-12

4 0
3 years ago
When your muscle gets tired, it builds up the _______ and makes it more powerful.
Nataly [62]
The answer is “D Tissue”


Explanation:

when you workout you tear down your muscles (tissue) and after your done working out your body rebuilds tissue


hope this helps
5 0
2 years ago
What would happen if the
AleksAgata [21]
Either everything would solid (strong attractive force), liquid or gas (weaker attractive force). Everything would be the same matter
7 0
3 years ago
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