Suggest two ways to liquefy the gases.

Answers

Answer 1

Answer: There are two ways to liquefy a gas:

-- Increase the pressure on it.

-- Lower its temperature.

The liquefication is faster and easier if you do both.

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What is in the center of our solar system ? Name three physical features of this object .

Answers

Answer: The Sun is present in the center of solar system whose features are color, mass and texture.

Explanation:

Our solar system consists of one star and 8 planets. The star is present in our solar system is the Sun and due to this star only, our solar system is named as such.

The planets present in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

These planets revolve around the star which is present at the center of the solar system.

Three physical features of Sun are:

Color: The color of Sun is yellow.
Mass: The mass of the Sun is $1.98892* 10^(30)kg$
Texture: Due to the convectional currents, the texture of the whole surface of sun is granular.

Hence, the Sun is present in the center of solar system whose features are color, mass and texture.

The sun. Light, heat and radiation

What is true of all mixtures?Group of answer choices

All mixtures are made up of 2 or more elements or compounds.

All mixtures are made up of solutions

All mixtures are made up of compounds.

All mixtures are made up of elements.

Answers

All mixtures are made up of two or more elements or compounds.

What are compounds?

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

Learn more about compounds,here:

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Answer:

Answer the first ine made up of 2 or more.....

In the reaction Mg (s) + 2HCl (aq) -> H2 (g) + MgCl2 (aq), how many grams of hydrogen gas will be produced from 300 milliliters of a 4 M HCl in an excess of Mg? Please show all work

Answers

Mg(s) + 2HCl(aq) = H₂(g) + MgCl₂(aq)

v=300 ml=0.3 l
c=4 mol/l

n(HCl)=vc

m(H₂)/M(H₂)=n(HCl)/2

m(H₂)=M(H₂)vc/2

m(H₂)=2.0g/mol·0.3 l · 4mol/l /2 = 1.2 g

1.2 grams of hydrogen gas will be produced

Which of the following alcohols is dehydrated most easily with conc. H²SO⁴? a. p-O²NC⁶H⁴CH(OH)CH³ b. p-C1C⁶H⁴CH(OH)CH³ c. p-CH³OC⁶H⁴CH(OH)CH³ d. C³H⁵CH(OH)CH³

Answers

Answer:

a. p-o²nc⁶h⁴ch(oh)ch

Explanation:

Final answer:

The alcohol that is dehydrated most easily with conc. H₂SO₄ is p-C1C₆H₄CH(OH)CH₃.

Explanation:

The alcohol that is dehydrated most easily with conc. H²SO⁴ is p-C1C⁶H⁴CH(OH)CH³. This alcohol is tertiary, meaning it has three alkyl groups attached to the carbon atom containing the hydroxyl group. Tertiary alcohols are more easily dehydrated compared to primary and secondary alcohols because the carbon atom attached to the hydroxyl group is more stable due to the presence of the alkyl groups.

Learn more about dehydration of alcohols here:

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ANSWER IT PLEASE!!!!! A virus is a genome, or set of chromosomes, contained inside a protein capsule called a capsid. A virus can be either a single or double strand of RNA or DNA. Although viruses are made of genetic information, they do not have cells. They also need to attach to a host cell in order to live and reproduce. Host cells can be from animals, plants and even bacteria and fungi. Scientists debate whether or not viruses are considered living organisms. Most agree that viruses are not living.Which of these statements is true based on the information in the passage?

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Answer:

Explanation:

What are the statements? You've given the passage but not the statements

Determine the concentration of the unknown CuSO₄ solution using the slope intercept formula.

Answers

I really trying to help

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A student made a copper bracelet by hammering a small copper bar into the desired shape. The bracelet has a mass of 30.1 grams and was at a temperature of 21°C in the classroom. After the student wore the bracelet, the bracelet reached a temperature of 33°C. Later, the student removed the bracelet and placed it on a desk at home, where it cooled from 33°C to 19°C. The specific heat capacity of copper is 0.385 J/g•K.69 Explain, in terms of heat flow, the change in the temperature of the bracelet when the student wore the bracelet. [1] 70 Determine the number of moles of copper in the bracelet. [1] 71 Show a numerical setup for calculating the amount of heat released by the bracelet as it cooled on the desk. [1] 72 Explain, in terms of chemical activity, why copper is a better choice than iron to make the bracelet. [1]