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RUDIKE [14]
3 years ago
9

Water is a great solvent. For example, it causes ionic compounds like sodium chloride (table salt) to dissociate. One of these r

easons that water does is because it is polar molecule. Why would water being a polar molecule allow it to break sodium chloride into ions of sodium and chlorine through dissociation?​
Chemistry
2 answers:
Oliga [24]3 years ago
6 0

Answer:

If you stir table salt into water, the crystal lattice of NaCl will begin to dissociate into Na+ and Cl- ions. (Dissociation is just a name for the process in which a compound or molecule breaks apart to form ions.) Water molecules form hydration shells around the ions: positively charged Na+ ions are surrounded by partial negative charges from the oxygen ends of the water molecules, while negatively charged Cl- ions are surrounded by partial positive charges from the hydrogen ends. As the process continues, all of the ions in the table salt crystals are surrounded by hydration shells and dispersed in solution.  So since water is more positive on one end and more negative on the other end compounds like NaCl start to dissolve because one of them is attracted to the partial positive side of the water and the other is attracted to the partial negative side. Then this process continues until the water kind of coats each of the atoms.

Ira Lisetskai [31]3 years ago
5 0

Answer:

A polar molecule has both a partial positive and a partial negative. Since NaCl (sodium chloride) is made out of Na+ and Cl- ions, the positive and negative parts of the water will pull on these ions individually since positive attracts negative and negative attracts positive. This magnetic force causes the Na+ and the Cl- ions to be pulled apart.

Explanation:

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Why is the Chemical symbol for lead Pb?? ^__^ i HATE the perdiotic** table!!
tatuchka [14]
Cause latin name of Pb is plumbum.
The same K - potassium - latin name is kalium.
3 0
3 years ago
A balloon is filled to a volume of 2.20L at a temperature of 22*C. The balloon is then heated to a temperature of 71*C. Find the
goldfiish [28.3K]

2.565L

Explanation:

  • Charles law states that the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature.V/T=K

         V1/T1=V2/T2        

          Unit of Kelvin = 273.15

  • To get the absolute temperature, we need to convert the degree celsius temperature to kelvin.

          T1= 22+273.15= 295.15 K

          T2 = 71+273.15= 344.15 K

          V1 = 2.20 L

          V2 =?

          2.20/295.15=V2/344.15

          0.00745 x 344.15 = 2.565 L

Hence,  2.565 L is the new volume of the balloon.

3 0
3 years ago
Identify the independent and dependent variables. Peter is conducting an experiment to see how much salt will dissolve in water
Vlad1618 [11]
Temperature is independent and the amount of salt dissolving in water is dependant. This is because the amount of salt dissolving depends on how low or high the water temperature is
6 0
3 years ago
How many total atoms are in 0.380 g of P2O5
pogonyaev
The gram formula mass of P2O5 is 31*2 + 16*5 =142. The mole number of P2O5 is 0.380/142=0.00268 mol. There is 7 atom in one P2O5 molecule. And there is 6.02 * 10^23 molecule per mol. So the answer is 1.13*10^22 atoms.
7 0
3 years ago
If 23.17 g of beryllium (Be) reacts with water at standard temperature and pressure,
emmainna [20.7K]

Volume of H2 produced = 57.6576 L

<h3>Further explanation</h3>

Given

23.17 g Be

Required

Volume of H2

Solution

Reaction

Be(s)+H2O(g)→BeO(s)+H2(g)

mol Be :

= 23.17 g : 9 g/mol

= 2.574

From the equation, mol H2 : mol Be = 1 : 1, so mol H2 = 2.574

Volume H2(assumed at STP, 1 mol=22.4 L) :

= 2.574 x 22.4 L

= 57.6576 L

5 0
2 years ago
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