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tensa zangetsu [6.8K]
3 years ago
11

when applied to a dish, soap makes grease soluble in water. which explanation correctly supports the role of intermolecular forc

es in this common observation?
Chemistry
1 answer:
ankoles [38]3 years ago
7 0
This is possible because of the emulsifying properties present in soap. This property is caused by the hydrophilic end and hydrophobic end of a soap molecule. Grease is able to be dissolved in the water because it is attracted to the hydrophobic end of the soap molecule.
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A compound has the empirical formula CH. A sample of this
riadik2000 [5.3K]
Answer: C6H6

Since we have the mass and number of Moles we can calculate the molecular weight.
n = m/M so M = m/n = 30.19/ 0.387 = 78 g/mol
For C6H6 the molecular weight is :
6 x 12 + 6 x 1= 72 + 6 = 78 g/mol
Which corresponds
3 0
3 years ago
The force generated by charged objects is called:
Helga [31]

Answer:

coulomb force/ electrostatic force

Explanation:

attraction or repulsion of particles

3 0
3 years ago
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How many moles are in 59.6 grams of BaSO4​
AysviL [449]

Answer:

0.2553669915026199 BaSO4

Explanation:

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3 0
3 years ago
2. Which of the changes indicated are oxidations
sergeinik [125]

Answer:

A) Oxidized

B) Reduced

C) Oxidized

D) Oxidized

Explanation:

A) Cu becomes Cu²⁺

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B) Sn⁺⁴ becomes Sn²⁺

oxidation state decreased from +4 to +2. It gets reduced.

C) Cr³⁺ becomes Cr⁺⁶

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D) Ag becomes Ag⁺

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Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

<em>Consider the following reactions. </em>

4KI + 2CuCl₂  →   2CuI  + I₂  + 4KCl

the oxidation state of copper is changed from +2 to +1 so copper get reduced.

CO + H₂O   →  CO₂ + H₂

the oxidation state of carbon is +2 on reactant  side and on product side it becomes  +4 so carbon get oxidized.

5 0
4 years ago
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Elza [17]

Answer: A. the chemical change will occur faster in beaker X.

Explanation:

Temperature is one of the factors that affect the rates of chemical reactions. Increase in temperature increases the rates of reaction by increasing the kinetic energy of the reacting particles so that energetic collisions occur and more bonds in the reactants will be broken and; atoms and ions recombine to form new compounds. Beaker X which is at room temperature has higher temperature than beaker Y which is kept in the refrigerator, thus reacting particles in beaker X has more kinetic energy than the ones in beakerA. the chemical change will occur faster in beaker X. Y.

8 0
4 years ago
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