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ELEN [110]
3 years ago
12

Sodium chloride (table salt,) whose formula is NaCl: Ionic Covalent

Chemistry
2 answers:
Vesna [10]3 years ago
7 0
Since sodium chloride contains both a metal AND a nonmetal, the combination of those would result in an ionic bond.
lys-0071 [83]3 years ago
6 0

Answer: Ionic

Explanation:

Ionic bonds are formed by transfer of electrons between metal and non metals.  Covalent bonds are formed by sharing of electrons between non metals

In Sodium chloride

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

In sodium chloride the one electron from sodium metal gets transferred to chlorine atom and thus is ionic.

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Answer questions 2 and 3
nlexa [21]

Answer:

2:a-heterogenous

b-homogenous

c-heterogenous

d-heterogenous with water

3:Filtration is used to separate insoluble particles from a solution

Distillation is used to separate liquids with close but different boiling points e.g water and ethanol

Explanation:

2: homogenous mixtures form a uniform layer meaning that a mixture containing more than one layer is heterogenous

4 0
3 years ago
To start the chemical reaction, what must happen between the enzyme and the substrate?.
yaroslaw [1]
The enzyme must attract substrates to its active state.
At the end of the reaction, products dissociate from the surface of the enzyme
6 0
2 years ago
What would be the electron configuration of a sulfur ion S−2?
MAVERICK [17]

It's either B or C heh

4 0
3 years ago
Read 2 more answers
What is the value of k, at 25 degrees Celsius
Dimas [21]
<h3>Answer:</h3>

298.15 K

<h3>Explanation:</h3>

W e are supposed to calculate the Value of K at 25°C

Assuming the value of K represent K, the question wants us to convert  degree Celsius to Kelvin.

  • To convert degrees Celsius to kelvin scale, we use the relationship;
  • Kelvin (K) = Degrees Celsius + 273.15 ; 273.5 is a constant
  • That is, to convert temperature from °C to Kelvin we add a constant of 273.15 to the °C given.

In this case;

Temperature is 273.15 °c

Thus, to Kelvin scale temperature will be;

= 25°C + 273.15

= 298.15 K

Therefore, the value of K, at 25°C is 298.15 K

7 0
3 years ago
b. Determine the molecular formula of a molecule with an empirical formula NH2and a molar mass of 32 g/mol.
VladimirAG [237]
I'm taking this lesson now, so imma help u ( if u need anything else ask me)

so given Molar mass= 32 g/mol
molar mass= (empirical formula) n
32 = (14x1 + 2x1) n
32 = 16 n , so n= 2
so, molecular formula= N2H4
5 0
3 years ago
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