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kiruha [24]
3 years ago
15

Which is a mixture?

Chemistry
2 answers:
Rama09 [41]3 years ago
5 0
Potassium and chlorine
Eva8 [605]3 years ago
4 0

Answer: Option (d) is the correct answer.

Explanation:

When two different atoms with similar composition are combined together by a chemical reaction then the product formed is known as compound.

For example, Potassium chloride is a compound as it has 1:1 composition, that is, one potassium atom is combined with one chlorine atom.

On the other hand, potassium metal is an element because it consists of only atoms of potassium.

Whereas when two different elements combine together and have different composition then it results in the formation of a mixture.

For example, potassium and chloride is a mixture as we cannot tell its composition without conducting an experiment.

Thus, we can conclude that out of the given options potassium and chlorine is a mixture.

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What does “like dissolves like” mean?
Tems11 [23]

Answer:

c  solvents dissolve chemicals with the same polarity ( ex. both are polar)

Explanation:

Like dissolves like is one of the central rule that guides the solubility of one substance in another.

  • It fully suggests substance having the same nature as in polarity-wise will dissolve one another.
  • For example, water is a polar liquid, it will dissolve table salt because it i also polar.
  • Water cannot dissolve oil because oil is non-polar.
4 0
3 years ago
How would the world be different if people were not aware of radioactive decay
allsm [11]

Answer:

everyone would die

Explanation:

if we did not know about it we would not do anything about it

6 0
3 years ago
What is the identity of an ion having 46 protons, 42 electrons and 60 neutrons?
Anon25 [30]

Answer:

first u lick it then out some sliva on it then rub it and once the volcano erupts u put it back in ur mouth and blow real hard ok!

Explanation:

repeat this process till the dong bleeds!

3 0
2 years ago
calculate the number of moles of gas that occupy a 3.45L container at a pressure of 1.48 atm and a temperature of 45.6 Celsius ​
Otrada [13]

Answer:

There are 0,2 moles of gas that ocuppy the container.

Explanation:

We apply the formula of the ideal gases, we clear n (number of moles); we use the ideal gas constant R = 0.082 l atm / K mol. Firs we convert the unit of temperature in Celsius into Kelvin:

0°C= 273 K ------> 45,6 °C= 273 + 45, 6= 318, 6 K

PV= nRT ---> n= PV/RT

n= 1,48 atm x 3,45 L /0.082 l atm / K mol x 318,6 K

n= 0,195443479 mol

8 0
3 years ago
How do you calculate the density of a gas, based on its temperature and pressure?
stiks02 [169]
We can rearrange the ideal gas equation:
PV = nRT, where n is the number of moles equivalent to:
n = mass / Mr
PV = mRT/Mr
m/V = PMr/RT
density = PMr / RT; where Mr and R are constant.
5 0
3 years ago
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