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Dafna1 [17]
2 years ago
8

HELP MEEEE

Chemistry
2 answers:
sweet [91]2 years ago
7 0

Answer:

1. A

2. D.

3. A.

Explanation:

Sophie [7]2 years ago
7 0

The definition of eccentricity allows to find the correct answers are:

1.  A. its orbit is a highly elongated ellipsis.

2.  A. 0.9200

3. A. 0.0068

The eccentricity of an ellipse is defined as the relationship between the distance of the semi-major axis (a) and the distance from the center of the ellipse to one of the foci (c)

         \epsilon  = \frac{c}{a}

Where ε is the eccentricity, a and c are the distance to the major axis and the focus, respectively.

Eccentricity values ​​range from ε = 0 for the circumference to ε = 1 to approximate a segment

They indicate several questions

1) What does it mean when the orbital eccentricity of a planet is close to 1?

Checking the answers, the correct one is:

      A. its orbit is a highly elongated ellipsis.

2) Astronomers discover a new comet that follows a highly elliptical orbit. What is its eccentricity likely to be?

The answer is an eccentricity very close to 1, the correct answer is:

     A.  0.9200

3)Venus has the smallest orbital eccentricity of any of the planets. What is the eccentricity of Venus?(1 point)

The planet Venus has an almost circular orbit of the times tabulated, its eccentricity is 0.0068

The correct answer is:

      A.    0.0068

In conclusion, using the definition of eccentricity, we can find the correct answers to the questions:

1.    The correct is :  A. The orbit is a very elongated ellipse

2.   The correct is:   A. 0.9200

3.   The correct is:  A. 0.0068

Learn more here: brainly.com/question/17817893

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false

Explanation:

6 0
2 years ago
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The only way to separate a compound into its elements is by what?
algol [13]
Electrolysis and heat can separate a compound into its elements. 

I hope this helped you!
7 0
3 years ago
A sample of a compound is decomposed in the laboratory and produces 330 g carbon, 69.5 g hydrogen, and 220.2 g oxygen. Calculate
Zarrin [17]

Answer: Empirical formula is C_2H_5O

Explanation: We are given the masses of elements present in a sample of compound. To evaluate empirical formula, we will be following some steps.

<u>Step 1 :</u> Converting each of the given masses into their moles by dividing them by Molar masses.

Moles=\frac{\text{Given mass}}{\text{Molar mass}}

Molar mass of Carbon = 12.0 g/mol

Molar mass of Hydrogen = 1.0 g/mol

Molar mass of Oxygen = 16.0 g/mol

Moles of Carbon = \frac{330g}{12g/mol}=27.5moles

Moles of Hydrogen = \frac{69.5g}{1g/mol}=69.5moles

Moles of Oxygen = \frac{220.2g}{16g/mol}=13.76moles

<u>Step 2: </u>Dividing each mole value by the smallest number of moles calculated above and rounding it off to the nearest whole number value

Smallest number of moles = 13.76 moles

\text{Mole ratio of Carbon}=\frac{27.5moles}{13.76moles}=1.99\approx 2

\text{Mole ratio of Hydrogen}=\frac{69.5moles}{13.76moles}=5.05\approx 5

\text{Mole ratio of Oxygen}=\frac{13.76moles}{13.76moles}=1

<u>Step 3:</u> Now, the moles ratio of the elements are represented by the subscripts in the empirical formula

Empirical formula becomes = C_2H_5O

7 0
3 years ago
Someone plz help me
a_sh-v [17]

Answer:

A experimental investigation

3 0
2 years ago
Someone please help fast!!!please
Crank

Answer:

7276783

Explanation:

8765467

4 0
2 years ago
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