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allsm [11]
3 years ago
10

Which of the following substances is the most soluble in water?

Chemistry
2 answers:
GuDViN [60]3 years ago
5 0
A. Sodium Chloride.
brilliants [131]3 years ago
5 0

Answer: A. Sodium chloride

Explanation: Sodium chloride (NaCl) is an ionic compound formed by transfer of electrons from sodium to chlorine.

Electronic configuration of sodium:

[Na]=1s^22s^22p^63s^1

Sodium atom will loose one electron to gain noble gas configuration and form sodium cation with +1 charge.

[Na^+]=1s^22s^22p^63s^0

Electronic configuration of chlorine:

[Cl]=1s^22s^22p^63s^23p^5

Chlorine atom will gain one electron to gain noble gas configuration and form chloride ion with -1 charge.

[Cl^-]=1s^22s^22p^63s^23p^6

These ions can be separated in polar solvent water and thus are soluble in water.

Whereas methane (CH_4) is a covalent compound formed by sharing of electrons and is soluble in non polar solvents.

Bromine (Br_2) is a covalent compound formed by sharing of electrons and is soluble in non polar solvents.

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Scientific predictions should be made from:
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Answer:

studies

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if they get plenty of studies then they get it

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From the time a drug is discovered, a drug is given this name which is assigned by the International Union of Pure and Applied C
sweet-ann [11.9K]

Answer:

A. Chemical name

Explanation:

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7 0
3 years ago
Balancee las ecuaciones químicas por el método de tanteo e identifique que tipo de reacción es: 1.1.- Cloruro férrico acuoso rea
lakkis [162]

Respuesta:

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + 6 NaCl(aq)

Explicación:

Consideremos la ecuación no balanceada que ocurre cuando cloruro férrico acuoso reacciona con carbonato de sodio sólido para formar carbonato férrico sólido y cloruro de sodio acuoso. Esta es una reacción de doble desplazamiento.

FeCl₃(aq) + Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Vamos a usar el método de tanteo. Empezaremos balanceando los átomos de C, multiplicando Na₂CO₃ por 3.

FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Luego, balancearemos los átomos de Fe, multiplicando FeCl₃ por 2.

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Finalmente, obtendremos la ecuación balanceada, multiplicando NaCl por 6.

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + 6 NaCl(aq)

4 0
2 years ago
What is the total number of atoms represented in the formula CuSO4*5H2O
Alenkinab [10]
There are 21 atoms represented in the formula :) hope this helped.
4 0
3 years ago
Explain the connection between stereotypes and self-fulfilling prophecy. Give an example of how this works.
Darya [45]

Explanation:

Self fulfilling prophecy means how our expectations or expectations of others influence our own behavior. Being self fulfilling means, to bring about a result that has been already foretold or talked about.

Whereas Stereotype is a preconceived notion about a particular type of person or thing. for examples woman as driver are not so good is an stereotype. However, the idea may untrue or partly true.

6 0
3 years ago
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