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MakcuM [25]
3 years ago
11

The mass of a nucleus is less than the total mass of it's nucleons. This difference in mass indicates that some of the mass has

been converted into ____________.
Chemistry
1 answer:
vekshin13 years ago
5 0

<u>Answer:</u> Some of the mass gets converted in the form of energy related to mass.

<u>Explanation:</u>

Mass defect is defined as the difference in the mass of an isotope and the mass number of an atom. Equation representing mass defect is:

\Delta m=[(n_p\times m_p)+(n_n\times m_n)]-M

where,

\Delta m = mass defect of an atom

n_p = number of protons

m_p = mass of one proton

n_n = number of neutrons

m_n = mass of one neutron

M = mass number

The mass number of an atom (mass of nucleus) is always less than the isotopic mass (total mass of its nucleons) because energy is released when nucleus gets formed. This energy is related to mass of the nucleus and is known as binding energy.

Hence, some of the mass gets converted in the form of energy related to mass.

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Students find the pH of Substance A to be 2.1 and Substance B to be 4.4. They are told Substance C is less acidic than Substance
Slav-nsk [51]

Answer:

the range should be 2.2 to 4.3

Explanation:

I think so because the numbers at the left side of the scale from 1 are more acidic so as it increases it's still acidic but lesser so 1 is more acidic than 2 so I used 2.2 as the beginning of the range because it's less acidic than A even though its a greater number and 4.3 is lesser than 4.4 but its still greater on the scale. frankly speaking I don't feel so correct because it's in decimal so try and compare facts thank you

8 0
3 years ago
How many moles are in 5.0 x 10^25 atoms of iron?
Andreas93 [3]

Hello!

To find the number of moles that are in the given amount, we need to divide the total number of atoms by Avogadro's number, which is 1 mole is equal to 6.02 x 10^23 atoms.

5.0 x 10^25 / 6.02 x 10^23 ≈ 83.0564

Therefore, there are about 83.06 moles of iron (sigfig: 83 moles).

7 0
3 years ago
What is the mass in grams of 2.00 10 5 atoms of naturally occurring neon
lesantik [10]

Answer:

2.00X10^5 x 20gNe/6.02x10^23=6.46x10^-18 but books answer is 797.

Explanation:

3 0
2 years ago
What would the molecular formula be if lithium and sulfur reacted to form a neutral compound?
skad [1K]

Answer:

D, Li2S

Explanation:

This is because Lithium, which is in group IA of the periodic table, has a charge of +1. Sulfur will have a charge of -2 because it is in group 6A in the periodic table, which means to balance these out, there needs to be 2 lithium ions which would result in a charge of +2. With Lithium now having a charge of +2 due to having two atoms in the compound, and sulfur already having a charge of -2 as one atom, these two cancel out meaning the compound is neutral.

4 0
2 years ago
PLEASEEE HELPPP!!!!!!
chubhunter [2.5K]

Answer:

A

Explanation:

Cs has a higher rate of reaction because it's easier to remove an electron from it, thereby leading to faster reactivity

5 0
3 years ago
Read 2 more answers
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