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MA_775_DIABLO [31]
2 years ago
5

How can you figure out the properties of a star?

Chemistry
2 answers:
dmitriy555 [2]2 years ago
4 0

Answer:

Analyze the Characteristics of a Star

Explanation:

Surface Temperature

First, you want to determine the color of the star - this can determine the heat and age of the star.

Second, you want to measure the spectrum and get the spectral type.

Chemical Composition

Determine which lines are present in the spectrum.

Luminosity

Measure the apparent brightness and compensate for distance

Radical Velocity

Measure the Doppler shift in the spectrum.

Rotation

Measure the width of spectral lines.

Mass

Measure the period and radial velocity curves of spectroscopic binary stars.

Diameter

1. Measure the way a star’s light is blocked by the Moon.

2. Measure the light curves and Doppler shifts for eclipsing binary stars.

Firlakuza [10]2 years ago
3 0

Answer:

Measuring distances to stars through stellar parallax. Measuring distances to stars through the moving cluster method. Astronomers measure the temperature of a star by looking at the star's color and its spectrum. The apparent brightness of a star tells how bright it seems to us

Explanation:

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Why do electrons flow through a wire?
I am Lyosha [343]

Answer:

When electrons flow through a conductor such as a wire, it is called, "Electricity".

Explanation:

4 0
3 years ago
1. In which of these forms does acid precipitation reach the surface of<br><br> Earth?
vodomira [7]

Answer:

Wet deposition

Explanation:

when the chemicals produced in the Earth can evaporate and reach the clouds, it will mixed with the water inside the clouds and form a slightly acid water than when is time to deposit the water into the Earth as snow, rain, fog or mist, the chemicals will travel with the water dissolved in it.

When they reach the soil, eventually, the water will  evaporate or will be absorbed by soil, so the chemicals that are left behind, will reach the surface of Earth.

Depending where the chemicals were deposit, they can contaminate the sea, or other water bodies, or soil areas of crops, buildings, etc.

Hope this info is useful.

5 0
3 years ago
A common fuel additive that is composed of C, H, and O enhanced the performance of gasoline began being phased out in 1999 becau
spayn [35]

Answer:

C₅ H₁₂ O

Explanation:

44 g of CO₂ contains 12 g of C

30.2 g of CO₂ will contain 12 x 30.2 / 44 = 8.236 g of C .

18 g of H₂O contains 2 g of hydrogen

14.8 g of H₂0 will contain 1.644 g of  H .

total compound = 12.1 out of which 8.236 g is C and 1.644 g is H , rest will be O

gram of O = 2.22

moles of C, O, H in the given compound =  8.236 / 12 , 2.22 / 16 , 1.644 / 1

= .6863 , .13875 , 1.644

ratio of their moles = 4.946 : 1 : 11.84

rounding off to digits

ratio = 5 : 1 : 12

empirical formula = C₅ H₁₂ O

6 0
3 years ago
When you add salt to water it makes the solution boil
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Answer:

A i believe

Explanation:

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