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Helga [31]
3 years ago
5

Define physical change and give an example

Chemistry
2 answers:
Musya8 [376]3 years ago
6 0
Physical isn't so chemical

frozen [14]3 years ago
3 0
Physical changes are the physical properties associated with a specific matter. 

Examples include viscosity, malleability, colour, odor, hardness, etc. 
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Which one of the following substances would be the most soluble in CCl4?
maria [59]

Answer: Option (d) is the correct answer.

Explanation:

Carbon tetrachloride (CCl_{4}) is a non-polar solvent. Whereas out of the given options, Na_{2}SO_{4}, H_{2}O, CH_{3}CH_{2}CH_{2}CH_{2}OH, and HI are all polar molecules.

On the other hand, only C_{4}H_{10} is non-polar molecule.

Also it is known that like dissolves like.

So, being non-polar CCl_{4} will dissolve the give alkane, C_{4}H_{10}.

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3 years ago
Waves crash on a beach one after another. Why doesn't water pile up on the beach
Klio2033 [76]

sand

Explanation:

it is absorbing it

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3 years ago
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Today they will practice measuring different liquids. They will use a container called a graduated cylinder to measure liquids. Graduated cylinders have numbers on the side that help you determine the volume. Volume is measured in units called liters or fractions of liters called milliliters (ml).
7 0
3 years ago
How do you solve this ??
kotegsom [21]
Answer : Option A) 2.00 eV

Explanation : The conversion of J to eV is done with the following formula;

E_{eV} = E_{J} X (6.241 X 10^{18})

Here, we have the value of particle in terms of Joules which is 3.2 X 10^{-19}

So, on substituting we get,
E_{eV} = 3.2 X 10^{-19}  X  (6.241 X 10^{18} )


E_{eV} = 1.99 eV so, it can be rounded off to 2.00 eV.
3 0
3 years ago
Find oxidation number for the aucl4 in haucl4 is it 1 or -1?
Romashka [77]
H^{+I}Au^{+VII}Cl_{4}^{-I}
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