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devlian [24]
3 years ago
7

PLEASE HELP ASAP!!! LOTS OF POINTS^^

Chemistry
1 answer:
Serggg [28]3 years ago
5 0
1. An isomers, are molecules with<u> the same chemical formula</u> but <u>different structural formula.</u>

2. <span>Isomers of hexane are <u>skeletal isomers</u>. They have the same chemical formula (C</span>₆H₁₄)<span> but have different carbon chain and different chemical properties.
</span>There are five isomers of hexane.


Look at the attachment :)


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What is the temperature of a gas that is expanded from 3.75 L at 37 degrees Celsius to 5.6 L?
deff fn [24]

Answer:

190 °C  

Step-by-step explanation:

The pressure is constant, so this looks like a case where we can use <em>Charles’ Law</em>:  

V₁/T₁ = V₂/T₂      Invert both sides of the equation.  

T₁/V₁ = T₂/V₂      Multiply each side by V₂

T₂ = T₁ × V₂/V₁

=====

V₁ = 3.75 L; T₁ = (37 + 273.15) K = 310.15 K  

V₂ = 5.6 L;   T₂ = ?  

=====

T₂ = 310.15 × 5.6/3.75

T₂ = 310.15 × 1.49

T₂ = 463 K

t₂ = 463 – 273.15

t₂ = 190 °C

3 0
3 years ago
Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result fro
erastova [34]

Answer: are electrically attracted to each other

Explanation:Water molecules are attracted to each other by partial negative and positive charges on the oxygen and hydrogen atoms, respectively

6 0
3 years ago
Read 2 more answers
What is the mass of 1 mole of lithium?
Korolek [52]

<u>Answer:</u> The mass of 1 mole of lithium is 6.941 grams.

<u>Explanation:</u>

To calculate the mass of a compound or element, we use the formula used to calculate the number of moles:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Where,

Number of moles of lithium = 1 mole

Given mass of lithium = ? g

Molar mass of lithium = 6.941 g/mol

Putting value in above equation, we get:

1mole=\frac{\text{Given mass}}{6.941g/mol}\\\\\text{Mass of lithium}=6.941g

Hence, the mass of 1 mole of lithium is 6.941 grams.

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3 years ago
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Use the drop-down menus to order the steps for writing chemical names. Write the name of the element that is farthest to the lef
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Answer:

1.) 3

2.)2

3.)4

4.)5

5.)1

Explanation:

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3 years ago
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A solid precipitate is formed from the reaction of lead nitrate and sodium chromate.
LUCKY_DIMON [66]

Lead chromate is a precipitate that is formed on the reaction of lead nitrate with sodium chromate. The best method to separate this precipitate from the solution is filtration.

  • A precipitate can be defined as an insoluble solid formed in a chemical reaction. It appears as a cloudy and resulted after a reaction.
  • The lead chromate is yellow colored precipitate that forms after the reaction of lead nitrate with sodium chromate.
  • The process of separation of insoluble solids from the liquids by the use of filters is known as filtration. Insoluble solids are also called as precipitates these precipitates are formed in a chemical reaction.
  • Filtration will help in separation of  insoluble solid yellow colored lead chromate precipitate from the solution using a porous material or filter that selectively inhibits the passage of solid precipitate material and allows the solution to pass through it.

Learn more about filtration:

brainly.com/question/24615878

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