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Andru [333]
3 years ago
10

What subatomic particle is responsible for the observed properties of an atom?

Chemistry
2 answers:
Masteriza [31]3 years ago
7 0
The subatomic particle that is responsible for the observed properties of an atom is

A protons
Drupady [299]3 years ago
4 0
Protons are responsible for the observed properties of an atom
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Calculate the number of moles of Cu in 3.8×10213.8×1021 atoms of Cu.
rosijanka [135]

Answer:

6.3×10⁻³ moles of Cu

Explanation:

The relation is, that 1 mol of particles are contained by 6.02×10²³ particles.

This is Avogadro's number that explains that: one mole determines the number of fundamental units that are contained in a constant number  but they do not depend on the type of material or the type of particle, and this quantity is 6.02 × 10²³

We can make a rule of three:

6.02×10²³ atoms are contained 1 in mol of Cu

Therefore, 3.8×10²¹ atoms will be contained in (3.8×10²¹ . 1) / NA = 6.3×10⁻³ moles

7 0
4 years ago
What is NOOH in amino acid?
mihalych1998 [28]
<span>-NH2 or, in its ionized form, -NH3+. Amino groups are the functional groups that bestow the "amino" in amino acid. They also readily ionize, gaining a proton (hydrogen ion), and thus serve as weak bases.</span>
6 0
3 years ago
For some transformation having kinetics that obey the Avrami equation (Equation 11.17), the parameter n is known to have a value
Alex787 [66]

Answer:

t ≈ 235.47 secs

Explanation:

<u>Calculate how long it will take the transformation to go to 88% completion</u>

Given that Avrami equation ( <em>y </em>)= 1 - exp( - kt^n )

n = 2.3

t = 145 secs

reaction = 50%  after t = 145 secs

Reaction = 88%  after t = ?

attached below is a detailed solution

3 0
3 years ago
using the symbol M for the element, write the chemical formula for the compound that forms when element M reacts with iodine.
Anon25 [30]

Answer : The chemical formula for the compound is, MI

Explanation :

When the element 'M' react with the I_2 to give MI.

The balanced chemical reaction is,

2M+I_2\rightarrow 2MI

In this reaction, 'M' is in mono-atomic form and I_2 is in diatomic form.

By the stoichiometry,

2 moles 'M' react with the 1 mole of I_2 to give 2 moles of MI.

Therefore, the chemical formula of the compound is, MI


6 0
3 years ago
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Tuning a musical instrument like a guitar change the what?
Scrat [10]
When you are tuning an instrument it changes the sound of the instrument
5 0
3 years ago
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