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Snowcat [4.5K]
3 years ago
7

3

Chemistry
1 answer:
Schach [20]3 years ago
8 0

Answer:

A.  gases only

Explanation:

It is only in gases that the particles are very far apart so they can fill their contains.

There are four major states of matter which solid, liquid, gases and plasma.

  • Particles of a gas have very weak attractive forces between them.
  • They do not have fixed volume nor shape
  • They easily fill up any containers they are put into.
  • Gases are compressible and moves randomly in a straight line.
  • Liquids and solids do not fill up containers.
  • Liquids although have weak forces but they are better attracted than gases.
  • Solids have fixed and definite volume.

So, option A is the perfect answer.

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8.632 nm + 8.3 nm - 30.0 nm=
Misha Larkins [42]

Answer:

13.06800 nanometers

Explanation:

i hope you had understand !

5 0
3 years ago
One hundred million copper atoms are arranged in a line. which is a reasonable estimate for the length of this line?
Alex777 [14]
10^-8 cm/atom times 10^8 atoms = 1 cm
6 0
3 years ago
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Which of these compounds would you expect to be most soluble in water? ch3ch2cl ch3ch2ch2ch3 ch3ch2ch2f ch3ch2ch2oh?
Montano1993 [528]

Answer : The compound that would be most soluble in water is CH3CH2CH2OH

Explanation :

Water is a polar solvent and can dissolve polar molecules. This is based on the principle "Like dissolves like".

Among the given molecules, CH3CH2CH2CH3 is a hydrocarbon known as butane. All hydrocarbons are non polar. Therefore this compound will not be soluble in water.

The remaining compounds are polar, but Ch3CH2CH2OH shows greater solubility in water owing to presence of hydrogen bonding.

Hydrogen bonding is a type of intermolecular force that gets formed when a compound has hydrogen atom directly attached to highly electro-negative N, F or O atom.

When CH3CH2CH2OH is dissolved in water, it forms hydrogen bonds with water molecules. Due to this hydrogen bonding, the molecule shows greater solubility.

Therefore CH3CH2CH2OH is the most soluble compound in water

6 0
3 years ago
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QUESTION 7
Temka [501]

The student's test average is : 0.92

Total score obtained = 369

Number of tests = 4

Since Each test is exactly 100 points ;

The total score obtainable is (100 × 4) = 400

Average = score obtained / total score obtainable

Average = 369 / 400

Average = 0.9225

Average = 0.92

Learn more : brainly.com/question/9416487?referrer=searchResults

5 0
3 years ago
What volume of sample, in mL, would be needed to make 2 mL of a 5-fold dilution? (3 significant figures needed)
natulia [17]

Answer:

0.400 mL

Explanation:

Hello, the dilution factor (in folds) is given by:

folds=\frac{total_{volume}}{sample_{volume}}

Thus, the sample volume with three significant figures is given by:

sample_{volume}=\frac{2mL}{5"folds"}=0.400 mL

Best regards.

5 0
3 years ago
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