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Akimi4 [234]
3 years ago
6

Givin 11 sodium 23, what is the atomic mass

Chemistry
1 answer:
shutvik [7]3 years ago
5 0
The atomic mass of sodium is 23. i hope that helps!
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Mohs hardness strontium
Taya2010 [7]

Answer: 5.5

Explanation: Strontium titanate is both much denser (specific gravity 4.88 for natural, 5.13 for synthetic) and much softer (Mohs hardness 5.5 for synthetic, 6–6.5 for natural) than diamond.

5 0
3 years ago
The product of Pb(NO3)2 (aq) + HNO3 (aq)​
Scrat [10]

Answer:

Pb(NO3)2 – Lead(II) nitrate sourceaà

Other names: Lead nitrate source Plumbous nitrate source Lead dinitrate source

Appearance: White colourless crystals asource:White or colourless crystals source.

H2O – Water, oxidane source

Other names: Water (H2O) source: Hydrogen hydroxide (HH or HOH) source: Hydrogen oxide source

Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas source.

8 0
3 years ago
What is the total number of protons in an atom with the electron configuration 2-8-18-32-18-1.
svp [43]

The total number of protons in this atom is 79 because an atomic number of an element is equal to the number of protons. Here, the atomic number is 79 after adding the given electronic configuration.

What are Protons?

Every atom has a proton, a subatomic particle, in its nucleus. The particle possesses an electrical charge that is positive and opposite to the electrons.

What is Atom?

A nucleus plus one or more electrons bound to the nucleus make up an atom. The quantity of protons or electrons in an element's atom determines how different it is from other similar elements. The atomic number of an element, which serves as its primary identification, is the sum of its protons or electrons.

What is Electronic configuration?

The arrangement of electrons in atomic or molecular orbitals within an atom, molecule, or other physical structure is known as the electron configuration.

Hence, the total number of protons in this atom is 79, after adding 2 + 8 + 18 + 32 + 18 + 1.

To know more about Atom, check out:

brainly.com/question/6258301

#SPJ4

5 0
1 year ago
20 POINTS PLZ HELP I DONT KNOW WHAT TO DO!!!!!
Charra [1.4K]

Answer: It would be Proteins. So B

Hope this helps!!!

DNA makes RNA which makes Proteins

8 0
3 years ago
What is the molality of a solution of water and KCl if the freezing point of the solution is –3°C? (Kf = 1.86°C/m; molar mass of
Elina [12.6K]
Some of the solutions exhibit colligative properties. These properties depend on the amount of solute dissolved in a solvent. These properties include freezing point depression, boiling point elevation, osmotic pressure and vapor pressure lowering. Calculations are as follows:

<span> ΔT(freezing point)  = (Kf)mi
3  = 1.86 °C kg / mol (m)(2)
3 =3.72m
m = 0.81 mol/kg</span>

4 0
3 years ago
Read 2 more answers
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