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Elza [17]
2 years ago
15

Form a bond: Each electron has a charge of 1–, and each proton has a charge of 1+. You can calculate the charge of an atom by su

btracting the number of electrons from the number of protons. Move an electron from the sodium to the chlorine atom
Chemistry
2 answers:
dimaraw [331]2 years ago
7 0

Answer:

A.What are the charges of each atom now?

Sodium: +1___ Chlorine: __-1___

Turn on Show charge to check. These charged atoms are called ions.

B.Is each ion stable? Explain.

-Electromagnetic force pulls them together

Shtirlitz [24]2 years ago
5 0

Explanation:

Bond forming:

   Given species:

             Na - Sodium              Cl - Chlorine

 Na has a valence electron  

 Cl has 7 valence electron

To form a bond of this nature, there must be a transfer of electrons.

 Here, the bond is between a metal and non-metal

The metal is sodium and the non-metal is chlorine;

  Na         →     Na⁺  +   e⁻                                           loss of 1 electron

2,8,1               2,8

                  isoelectronic with Neon

Cl  + e  →   Cl⁻                                                              gain of one electron

               isoelectronic with Argon

  Na⁺  +  Cl⁻   →   Na⁺.Cl⁻

  This bond type is an ionic bond

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In a Lewis diagram for methane, which atom or atoms is outside
Alik [6]
The hydrogen atoms are on the outside.
7 0
3 years ago
Calculate the vapor pressure of a solution containing 25.2 gg of glycerin (C3H8O3)(C3H8O3) in 124 mLmL of water at 30.0 ∘C∘C. Th
alexgriva [62]

Answer:

29.256 torr.

Explanation:

Number of moles

Glycerin:

Molecular weight of glycerin = (12*3) + (1*8) + (16*3)

= 36 + 8 + 48

= 92 g/mol

Number of moles = mass/molar mass

= 25.2/92

= 0.274 mol

Water:

Converting g/ml to g/l,

1000 ml = 1 l

= 1 g/ml * 1000 ml/1l

= 1000 g/l

Mass = (density * volume)

= 1000*0.124

= 124 g.

Molar mass of water = (1*2) + 16

= 18 g/mol

Number of moles = mass /molar mass

= 126/18

= 6.89 mol

P°solution = xsolvent * P°solvent

Where,

xwater = xsolvent = mole fraction of water.

Mole fraction is defined as the number of moles of a component of a solution divided by the total number of moles present in that solution.

xwater = mole of water/total mole of solution

Total mole = 6.89 + 0.274

= 7.164 moles

xwater = 6.89/7.164

= 0.962

P°solution = xsolvent * P°solvent

P°solution = 31.8 * 0.962

= 29.256 torr

6 0
3 years ago
How many moles are in 6.777 x 1023 atoms of CO2. Watch your significant figures. Question 2 options: 1 atoms CO2 1.125 moles CO2
Archy [21]

Answer:

1.13moles

Explanation:

Given parameters:

Number of atoms  = 6.777 x 10²³ atoms

Unknown:

Number of moles  = ?

Solution:

A mole of a substance contains the avogadro's number of particles

       6.02  x  10²³ particles   = 1 mole

      6.777 x 10²³ atoms will contain \frac{ 6.777 x 10^{23}  }{6.02 x 10^{23} }   = 1.13moles

6 0
3 years ago
A mole is a name for a specific number of things. What is the value of a mole? write the number using scientific notation. By wh
vesna_86 [32]

The value of a mole is 6.022 ×10^{23}. The other name of mole is Avogadro's number.

The mole is define as  6.022 ×10^{23} of the chemical unit like atoms , molecules, ions or others.It is very convenient unit because of huge numbers o f atoms, molecules or others. This is very important unit used by chemist.

One mole = atomic Mass of atoms / molecular mass of molecule

Example: one mole of sodium = 23 g = atomic mass

Learn about chemical unit

brainly.com/question/10997426

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7 0
2 years ago
From the Henderson-Hasselbalch equation, explain how the ratio [Al/[HA] changes with changing pH
Kryger [21]

Answer:

The ratio [A-]/[HA] increase when the pH increase and the ratio decrease when the pH decrease.

Explanation:

Every weak acid or base is at equilibrium with its conjugate base or acid respectively when it is dissolved in water.

HA + H_{2}O ⇄ A^{-} + H_{3}O^{+}

This equilibrium depends on the molecule and it acidic constant (Ka). The Henderson-Hasselbalch equation,

pH = pKa + Log \frac{[A^{-}]}{[HA]}

shows the dependency between the pH of the solution, the pKa and the concentration of the species. If the pH decreases the concentration of protons will increase and the ratio between A- and AH will decrease. Instead, if the pH increases the concentration of protons will decreases and the ratio between A- and AH will increase.

5 0
3 years ago
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