All categories

3 years ago

Why is it important to separate material from mixture?

Chemistry

1 answer:

Contact [7]3 years ago

4 0

Answer:

Explanation:

Mixtures are impure substances with the following properties:

Their composition is indefinite i.e they consisit of two or more elements or compounds in any proportion by mass.
Their constituents retains their identity i.e physical properties are retained.
They can easily be seperated by physical methods into their constituents.

It is important to seperate materials from mixtures because mixtures do not undergo chemical changes when they combine. This implies that they can easily be seperated using simple seperation techniques with the constituents still retaining their properties.

You might be interested in

Which tool is used to detect yellow light rays emitted by stars from outer space?

elixir [45]

Answer A

x-ray optical telescope.

hope this helps!.

3 0

3 years ago

Which statement is correct about the location of electrons in an atom according to the Quantum mechanical model? A) Electrons ar

katrin2010 [14]

Answer:

B) Electrons are located in the cloud-like areas around the nucleus.

Explanation:

The quantum mechanical model of the atom does not consider the path through which an electron travels. It rather estimates the probability of where electrons can be found at each energy level.

The region of maximum probability of where an electron is located is sometimes called an electron cloud or orbital. Each orbital of an atom and the electrons accomodated are described completely by a set of four quantum numbers.

4 0

3 years ago

Hydrazine (N 2 H 4 )) a rocket fuel reacts with oxygen to form nitrogen gas and water vapor . The reaction is represented with t

Drupady [299]

The mass of hydrazine (N₂H₄) required to produce 96 g of water (H₂O) is 85.4 g (Option C)

<h3>Balanced equation </h3>

N₂H₄ + O₂ —> N₂ + 2H₂O

Molar mass of N₂H₄ = (2×14) + (4×1) = 32 g/mol

Mass of N₂H₄ from the balanced equation = 1 × 32 = 32 g

Molar mass of H₂O = (2×1) + 16 = 18 g/mol

Mass of H₂O from the balanced equation = 2 × 18 = 36 g

SUMMARY

From the balanced equation above,

36 g of H₂O were produced by 32 g of N₂H₄

<h3>How to determine the mass of N₂H₄</h3>

From the balanced equation above,

36 g of H₂O were produced by 32 g of N₂H₄

Therefore,

96 g of H₂O will be produced by = (96 × 32) / 36 = 85.4 g of N₂H₄

Thus, 85.4 g of N₂H₄ is needed for the reaction

Learn more about stoichiometry:

brainly.com/question/14735801

8 0

2 years ago

With respect to NO and For the reaction NO + O 3 NO 2 + O 2 , the reaction was expressing concentrations as molarityare the unit

Sliva [168]

Answer:

CXbxcbfvbdffdffzsarg

Explanation:

6 0

3 years ago

Please help me answer this question I need it before 12:59

AlekseyPX

Answer:

because the brian is like a computer because that both use electrical signals to send messages the brain uses chemicals to transmit information and the computer uses electricity.

Hope that was helpful

3 0

3 years ago