Give an example of a 2 phase mixture and describe how you would separate the substances

Answers

Answer 1

Answer: First, we should define what a mixture and a two-phase mixture mean.
A mixture is a combination of two or more substances without any chemical reaction occurring between them. Components of a mixture can be separated using physical methods such as heating, filtering, evaporation, .... etc
A two-phase mixture is a type of mixture that contains two different phases of matter, for example solid and liquid phases in one mixture or liquid and gas phases in one mixture.

Now, we can give examples of two-phase mixtures and mention how to separate them:
A mixture of sand and water is considered a two-phase mixture (sand is sold and water is a liquid).
The components can easily be separated using filtration where the sand will remain on the filter paper and water will pass.

Another example is a mixture of sugar and water (sugar is a solid and water is a liquid).
The components can be separated by heating. We can eat the mixture until water evaporates and the sugar is precipitated. The evaporated water can then be condensed into a different container.

Hope this helps :)

Answer 2

Answer:

$\boxed{{\text{Mixture of sand and water}}}$ is an example of two-phase mixture and this can be separated by $\boxed{{\text{filtration}}}$ .

Further explanation:

Mixture:

The material that is made up of two or more substances is called a mixture. It has no fixed formula and its composition is also varied. All the individual constituents retain their properties after the formation of the mixture.

Types of mixtures:

1. Homogeneous mixtures

Homogeneous is a Latin word that means the same. These mixtures have a uniform composition throughout. These types of mixtures consist of a single phase only. Air, orange juice and blood are the examples of a homogenous mixture.

2. Heterogeneous mixtures

Heterogeneous is a Latin word that means different. These mixtures that have non-uniform composition throughout. These mixtures have more than one phase. Concrete, soda and chocolate chip cookies are the examples of a heterogeneous mixture.

Characteristics of mixtures:

1. It has a variable composition and has no formula.

2. Mixtures are not formed by any chemical reactions.

3. Mixtures can be either homogeneous or heterogeneous.

4. The constituents of the mixtures can be separated by physical methods such as filtration, heating, drying, distillation, crystallization.

5. The properties of the individual particles of the mixture are retained even after the formation of mixtures.

A mixture of sand and water is an example of a two-phase mixture. Here sand is a solid whereas water is a liquid. The components of the mixture are separated by filtration. Sand will remain on the surface of filter paper while water passes through it.

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

Subject: Chemistry

Chapter: Elements, compounds, and mixtures

Keywords: mixture, characteristics, formula, composition, properties, chemical reactions, filtration, distillation, heating, crystallization, homogeneous, heterogeneous, solid, liquid, sand, water, filter paper.

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The ____ contains the highest concentration of ozone.a. troposphere
c. stratosphere
b. mesosphere
d. exosphere

Answers

C. The stratosphere. About 90% of the ozone is in the stratosphere which begins about 8 miles above the Earth's surface.

Answer: Option (c) is the correct answer.

Explanation:

A layer above the troposphere and below the mesosphere is known as stratosphere.

This layer of stratosphere contains about 90% concentration of ozone and there is no occurrence of weather in this layer.

The occurrence of ozone in stratosphere makes it warmer.

Therefore, we can conclude that the stratosphere contains the highest concentration of ozone.

What describes a change in velocity?

Answers

Acceleration can be described as changes in speed, changes in direction, or changes in both. Acceleration is a vector.

Velocity is the displacement made per unit of time.

If direction or speed of the object change it causes change in velocity.

Acceleration is the term used for measuring the change of velocity. Acceleration is the change of velocity per unit of time.

The element carbon (C) is most likely to form covalent bonds with the element beryllium (Be). krypton (Kr). selenium (Se). sodium (Na).

Answers

The element that is most likely to form covalent bonds with carbon (C) is

Selenium (Se)

Explanation

Covalent bond is formed when there is sharing of electrons among two or more non metals.

Both carbon and selenium are non metals therefore they react to form a covalent bond by sharing electron.

Despite krypton been a non metal it does not form a covalent bond with carbon since krypton is inert ( non reactive).

Beryllium (Be) and sodium (Na) are metals therefore they form ionic bond with carbon instead of covalent bond.

Answer: Option (c) is the correct answer.

Explanation:

Atomic number of carbon is 6 and its electronic configuration is 2, 4. So, in order to complete its octet, it requires 4 more electrons.

Therefore, carbon form covalent bonds, that is, it shares electrons with and electron deficient atom.

Krypton is a noble gas and has completely filled octet. So, it will neither give to share its electrons with carbon atom.

Whereas beryllium and sodium does not have enough valence electrons to share. Hence, they will not form bond with carbon atom.

On the other hand, selenium being a non-metal is electron deficient and therefore, in order to complete its octet it will share its electrons with carbon atom.

Thus, we can conclude that the element carbon (C) is most likely to form covalent bonds with the element selenium (Se).

Suppose you wanted to dissolve 106 g of Na2CO3 in enough H2O to make 6.00 L of solution.(1) What is the molar mass of Na2CO3? (2) What is the molarity of this solution?

Answers

The molarity of the solution is the ratio of moles of solute to the volume of the solution in L. The molar mass of sodium carbonate is 106 g/mol and molarity is 0.167 M.

What is molar mass?

Molar mass is the mass of the compound that is given by the addition of the atomic mass of the individual atom present in the compound with respect to their stoichiometry coefficients.

The molar mass (M) of sodium carbonate can be given as,

$\rm M(Na_(2)CO_(3)) = 2M(Na)+M(C)+3M(O)$

Here mass of sodium = 23, carbon = 12 and oxygen = 16

Substituting values of the atomic mass we get:

$\begin{aligned} &=2(23)+12+3(16)\n\n&=46+12+48\n\n&=106 \;\rm g/mol\end{aligned}$

Hence, the molar mass of sodium carbonate is 106 g/mol.

Now molarity of sodium carbonate can be estimated as:

$\begin{aligned}\rm Molarity &= \rm (mass)/(\rm molar \; mass * Volume)\n\n&= (106)/(106 * 6)\n\n&= 0.16 \;\rm M\end{aligned}$

Therefore, 106 g/mol is the molar mass and 0.16 M is the molarity of sodium carbonate.

Learn more about molar mass and molarity here:

brainly.com/question/1287789

M(Na2CO3)=2M(Na)+M(C)+3M(O)
=2(23)+12+3(16)
=46+12+48
=106 g/mol
the molar mass of Na2CO3 is 106 g/mol
m=106g M=106 g/mol n=m/M
n=m/M n=106/106 n=1mol

What is Nuclear Fission?

Answers

It's where a heavy nucleus splits on its own or upon impact. This will release energy and used in things like bombs, powerplants, etc

the main process of generating nuclear energy

Which elements have the most similar chemical properties? boron and carbon oxygen and sulfur aluminum and bromine argon and silicon

Answers

Answer: Option (b) is the correct answer.

Explanation:

Elements which belong to same group show similar chemical properties.

This is because elements which are present in the same group have same number of valence electrons. Hence, they tend to show same type of reactivity which makes them exhibit similar chemical properties.

As chemical properties are defined as the properties which tend to show difference in chemical composition of a substance.

For example, toxicity, reactivity, combustion etc are all chemical properties.

Here, oxygen and sulfur are both group 16 elements. So, they tend to show similar chemical properties.

Thus, we can conclude that oxygen and sulfur elements have the most similar chemical properties.

Final answer:

Among the given pairs, oxygen and sulfur display the most similar chemical properties because they are in the same group of the periodic table (Group 16, or the chalcogens), and thus have the same number of valence electrons (six), leading to similar chemical reactivity.

Explanation:

Among the pairs of elements presented in the original question (boron and carbon, oxygen and sulfur, aluminum and bromine, argon, and silicon), the pair that has the most similar chemical properties is oxygen and sulfur. This is due to their placement within the same group on the periodic table, specifically the chalcogens, or Group 16.

Elements in the same group of the periodic table typically exhibit similar chemical properties because they have the same number of valence electrons. For example, boron and carbon, although neighbors on the periodic table, do not exhibit highly similar chemical properties due to their different numbers of valence electrons.

On the other hand, oxygen and sulfur, both being members of Group 16, have six valence electrons and thus exhibit similar chemical reactivity and form similar types of compounds, despite their differences in physical properties.

Learn more about Similarity in Chemical Properties here:

brainly.com/question/35865624

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