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WARRIOR [948]
3 years ago
15

What do dipole-dipole forces do?

Chemistry
2 answers:
hoa [83]3 years ago
6 0

Answer:

Dipole-dipole forces are weak electrostatic attractions between the positive dipole of one polar molecule and the negative dipole of another.

Explanation:

An example of such forces occurs between the hydrochloric acid molecules.

H - Cl -----H -Cl

Dipole-dipole forces are represented with dotted lines.

g100num [7]3 years ago
3 0
An ion-dipole force is a type of intermolecular force in which forces of attraction or repulsion occur between neighboring ions, molecules or atoms.
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An intravenous saline drip has 9.8 g of sodium chloride per liter of water. by definition, 1 ml = 1 cm3.
ELEN [110]
Missing question: Express the salt concentration in kg/m³.
Answer is: the salt concentration is 9.8 kg/m³.
m(NaCl) = 9.8 g ÷ 1000 g/kg.
m(NaCl) = 0.0098 kg.
V(solution) = 1 L = 1 dm³.
V(solution) = 1 dm³ ÷ 1000 dm³/m³.
V(solution) = 0.001 m³.
d(solution) = m(NaCl) ÷ V(solution).
d(solution) = 0.0098 kg ÷ 0.001 m³.
d(solution) = 9.8 kg/m³.
4 0
3 years ago
 Consider a bathtub filled with water, with a plug in the drain. How long would this be considered a closed system?
Monica [59]
For a closed system, you need two things:
1) a conservation of mass within the boundaries of the system
2) the ability to freely exchange energy to & from the "closed" system with a surrounding external system


So, the answer is <u><em>never</em></u>, since your defining the "system" as the water within the bathtub, and an open bathtub is exposed to evaporation, which is not conserving mass within the defined "system".
8 0
3 years ago
Read 2 more answers
Zn-64 = 48.63%
sladkih [1.3K]

Answer:

A = 65.46 u

Explanation:

Given that,

The composition of zinc is as follows :

Zn-64 = 48.63%

Zn-66 = 27.90%

Zn-67 = 4.10%

Zn-68 = 18.75%

Zn-70 = .62%

We need to find the  average atomic mass of the given element. It can be solved as follows :

A=\dfrac{48.63\times 64+27.90\times 66+4.1\times 67+18.75\times 68+0.62\times 70}{100}\\A=65.46\ u

So, the average atomic mass of zinc is 65.46 u.

6 0
2 years ago
Is c4 a compound element or mixture
Vaselesa [24]

Answer:

element

Explanation:

its c4( 4 carbons)

5 0
3 years ago
Read 2 more answers
A precipitate is a gas formed from the chemical reaction of two solutions. true or false
valentina_108 [34]
I would say false because a precipitate is a solid.
6 0
3 years ago
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