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Rom4ik [11]
3 years ago
15

An aqueous solution of sodium chloride is best classified as a

Chemistry
2 answers:
GalinKa [24]3 years ago
5 0
♥ <span>(2) homogeneous mixture
-This is because 
</span>-An aqueous solution of sodium chloride is best classified as a <span>homogeneous mixture.
</span>⇒As stated above, the correct answer is B
<span>
</span>
sergiy2304 [10]3 years ago
5 0

An aqueous solution of sodium chloride is best classified as \boxed{\left( 2 \right){\text{ homogeneous mixture}}}.

Further Explanation:

Element

A substance that cannot be broken down chemically is known as an element. It contains only one kind of atoms in it. Examples of elements are hydrogen, carbon, and oxygen.

Compound

The substance formed by the chemical combination of two or more atoms is called a compound. Since these are composed of different elements, these can further be broken down into its constituents. The constituent particles lose their properties after the formation of compounds. Examples of compounds are NaCl, \text{NH}_3 and \text{H}_2\text{O}.

Mixture

It is the combination of two or more substances together, but not by chemical means. The constituent particles retain their properties even after the formation of the mixture. Mixtures do not have a fixed formula and these have variable composition. Examples of mixtures are saline solution, concrete, and sand.

Classification of mixture:

1. Homogeneous mixtures

“Homo” means “same”. The mixtures that have the same or uniform composition throughout are termed as homogeneous mixtures. Such mixtures exist in a single phase. Examples of homogeneous mixtures are air, orange juice, and blood.

2. Heterogeneous mixtures

“Hetero” means “different”. The mixtures that have different or non-uniform composition throughout are termed as heterogeneous mixtures. Such mixtures have two or more phases. Examples of heterogeneous mixtures are ice cubes in cola, sand and sugar, and soda.

Sodium chloride is an ionic compound that consists of \text{Na}^+ and \text{Cl}^+ ions. Water is a polar molecule as it contains \text{H}^+ and \text{OH}^- ions in it. So NaCl dissolves in water completely and its aqueous solution exists in a single phase. Therefore, an aqueous solution of NaCl is a homogeneous mixture and option (2) is the correct answer.

Learn more:

  1. Characteristics of a mixture: brainly.com/question/1917079
  2. Example of physical change: brainly.com/question/1119909

Answer details:

Grade: High School

Chapter: Elements, compounds, and mixtures

Subject: Chemistry

Keywords: mixture, element, compound, NaCl, Na+, Cl-, single phase, sodium chloride, same, different, composition, homogeneous mixtures, heterogeneous mixtures.

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Explanation:

It is given that, the Average Speed of the orbiting space shuttle is  17500 miles/hour.

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We know that,

1 mile = 1.609 km

or

1 km = 0.621 miles

1 hour = 3600 seconds

17500\ \dfrac{\text{miles}}{\text{hour}}=17500\ \dfrac{\text{miles}}{\text{h}}\times \dfrac{1\ h}{3600\ s}\\\\=17500\times \dfrac{\text{miles}}{3600\ s}

Now cancel the miles in numerator.

17500\times \dfrac{\text{miles}}{3600\ s}=17500\times \dfrac{\text{miles}}{3600\ s}\times \dfrac{1.609\ km}{1\ \text{miles}}\\\\=17500\times \dfrac{1.609}{3600}\ km/s\\\\=7.82\ km/s

So, 17500 miles/hour is equal to 7.82 km/s.

8 0
3 years ago
According to the kinetic molecular theory particles of matter
DiKsa [7]

Answer:

The kinetic molecular theory of matter states that: Matter is made up of particles that are constantly moving. ... Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles.

Explanation:

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4 0
2 years ago
Copper has a specific heat of 0.385 J/gºC.
Anna71 [15]

Answer:

The final temperature is 348.024°C.

Explanation:

Given data:

Specific heat of copper = 0.385 j/g.°C

Energy absorbed = 7.67 Kj (7.67×1000 = 7670 j)

Mass of copper = 62.0 g

Initial temperature T1 = 26.7°C

Final temperature T2 = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = T2 - T1

Q = m.c. ΔT

7670 J = 62.0 g × 0.385  j/g °C ×( T2- 26.7 °C )

7670 J = 23.87 j.°C ×( T2- 26.7 °C )

7670 J / 23.87 j/°C = T2- 26.7 °C

T2- 26.7 °C = 321.324°C

T2 = 321.324°C + 26.7 °C

T2 = 348.024°C

The final temperature is 348.024°C.

6 0
3 years ago
What is the definition of percent composition in your own words?
harkovskaia [24]

Answer:

percentage by mass of each element in a compound.

Explanation:

4 0
2 years ago
Which type of reaction happens when a base is mixed with an acid? question 1 options:?
madreJ [45]
Chemicals cancel each other out and produce a salt and water. A neutralization reaction my also occur
7 0
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