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liq [111]
2 years ago
15

Isomers have identical formulas and different

Chemistry
2 answers:
Gala2k [10]2 years ago
6 0

Answer:  Different Molecular Structures

Explanation: Isomers are the substances which have same molecular formula but different structures.

These compounds also have different physical and chemical properties.

For eg - CH3CH2OH and CH3OCH3 these both are isomers . They have different identical formula and different structure.

CH3CH2OH is ethyl alcohol and CH3OCH3 is dimethyl ether which is least polar and the former one is highly polar thus used as polar protic solvents in the nucleophillic substitution reaction.

This can be easily distinguished with the structures provided.

Leno4ka [110]2 years ago
4 0
Molecular structure. Isomers have the same formula, so there is the same elements in both. But they have a different molecular structure and when drawn they look different
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Which statements describe the principles of the big bang theory? Check all that apply.
Marat540 [252]

The big bang theory explains how the universe began. According to it, the universe began as singularity (a very hot , small and dense superforce with no stars, atoms, or structures) and then about 13.7 billion years ago, the space  expanded very quickly. This leads to formation of stars and galaxies which we know today. This expanding of universe is still happening and thus the temperature of universe is decreasing.

Therefore, the statements describing the bing bang theory are:

1) The universe is continuing to expand and

2)A massive explosion caused matter and energy to expand and form the universe.



8 0
3 years ago
Read 2 more answers
A sample of an unknown liquid is vaporized in a flask having a volume of 298 mL at 100.0°C. The vapor has a mass = 0.687 g, and
Dafna11 [192]

Answer:

69.196

Explanation:

<em><u>using ideal gas </u></em><em><u>equation</u></em>

  • PV= nRT
  • n= mass/molar mass
  • PV=mass/molar mass x RT
  • R = 62.364LTorrmol-¹k-¹
  • make molar mass subject of formula
  • m.m=(massxRT)/PV
  • m.m = (0.687 x 62.364 x373)/(775 x 0.298)
  • m = 69.196
7 0
3 years ago
Which of the following describes carbon dioxide? O Has polar covalent bonds and is a polar molecule O Has non-polar covalent bon
OLga [1]

Answer: Option "Has polar bonds and is a non-polar molecule" is the correct answer.

Explanation:

A covalent compound is defined as the compound in which there will be sharing of electrons between the combining atoms.

An ionic compound is defined as the compound in which there will be transfer of electrons from one atom to another.

  • A non-polar covalent compound is defined as the compound in which there will be equal sharing of electrons between the combining atoms.

For example, a chlorine atom has 7 valence electrons.

So, when a chlorine atom chemically combines with another chlorine atom then there occurs equal sharing of electrons.

Hence, molecule Cl_{2} is formed which is non-polar covalent compound in nature with non-polar covalent bond.

  • A polar covalent bond is defined as the bond in which there will be unequal sharing of electrons between the combining atoms.

For example, a carbon atom has 4 valence electrons and an oxygen atom has 6 valence electrons.

To complete their octet a carbon atom needs 4 more electrons and an oxygen atom needs 2 more electrons.

And, when one carbon and two oxygen atoms chemically combine together then there occurs unequal sharing of electrons.

Hence, a polar covalent compound CO_{2} is formed.

Since, oxygen is more electronegative than carbon atom. Hence, dipoles in the linear carbon dioxide molecules will cancel out each other.

Therefore, a carbon dioxide molecule is non-polar compound that has polar covalent bonds.

Thus, we can conclude that the statement, has polar bonds and is a non-polar molecule, correctly describes carbon dioxide.

8 0
3 years ago
Which of the following statements is true about what happens during a chemical reaction?
tiny-mole [99]

Answer: The correct option is A.

Explanation: In a chemical reaction, reactants react to form a number of products.

For the formation of products, the bonds of the individual reactants must be broken and the bonds of the products must be formed.

For example: Formation of water from hydrogen gas and oxygen gas. Reaction follows:

2H_2(g)+O_2(g)\rightarrow 2H_2O(l)

The Bonds of hydrogen and oxygen molecule are broken and new bonds between hydrogen and oxygen atoms are formed to give water molecule.

5 0
3 years ago
Read 2 more answers
PLEASE HELP 100!!!!! POINTS
insens350 [35]

i will ans the 2nd part first:


heat sources 4 homes: those wuld be renewable resources that generate heat. They include geothermal, solar water-heating and bio-mass.


primarily produce electricity: those wuld be something that is big like a dam for hydroelectric, wind turbine for electric generation, and solar farm for electricity.


4 0
3 years ago
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