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Luda [366]
2 years ago
15

What makes up nearly all of the atom's mass?

Chemistry
2 answers:
VMariaS [17]2 years ago
7 0
Sum of the number of protons and neutrons, which is the nucleus
Ber [7]2 years ago
5 0

Answer:

The Nucleus

Explanation:

The nucleus of an atom contains both the protons (positively charged particles) and the neutrons (particles with no charge) - these two set of particles present in the nucleus of an atom determines the mass of an atom. Hence, atomic mass is the sum of the number of protons and number of neutrons present in the nucleus of an atom.

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Aluminum is light and is quite unreactive it is malleable and strong too.
6 0
2 years ago
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If a gas displays a solubility of 0.00290M at a partial pressure of 125 kPa, what is the proportionality constant for this gas i
alexgriva [62]

Answer:

The proportionality constant ( Henry’s constant) = 2.32 * 10^-5 M/kPa

Explanation:

Here in this question, we are concerned with calculating the proportionality constant for this gas.

Mathematically, we can get this from Henry law

From Henry law;

Concentration = Henry constant * partial pressure

Thus Henry constant = concentration/partial pressure

Henry constant = 0.00290 M/125 kPa = 2.32 * 10^-5 M/kPa

5 0
3 years ago
The atomic number is
vovikov84 [41]
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2 years ago
What kind of intermolecular forces act between a hydrogen chloride molecule and a hydrogen iodide molecule?
wlad13 [49]

Answer:

Since ΔEN > 0, the bond is covalent polar and the molecule is polar (dipole). Since ΔEN > 0, the bond is covalent polar and the molecule is polar (dipole). HI and ClF interact through a dipole-dipole force

Explanation:

5 0
3 years ago
From its position in the periodic table, determine which atom in each pair is more electronegative: (a) N or P (b) N or Ge (c) S
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Answer:

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<em>se </em><em><u>hhgggggggg</u></em><em><u> I</u></em><em><u> no</u></em>

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