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Ilia_Sergeevich [38]
3 years ago
15

For "moving toward," a blue ray of light moved from the star to Earth. Then a spectrum appeared in the bottom half of the screen

. Which statement about the spectrum on the bottom relative to the spectrum of the stationary star is correct?
Chemistry
1 answer:
Gwar [14]3 years ago
5 0

Answer:

It travels faster

Explanation:

The spectrum are likely to be of different  wavelengths. The different wavelengths result in light of a different intensity. This results in a light difference in the spectrum. The blue ray generally presents light of shorter wavelengths. It is associated with close to hottest objects. Thus, there will bee a difference in the two spectra.

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Balance the following redox equation, identifying the element oxidized and the element reduced. Show all of the work used to sol
hodyreva [135]

The given equation is,

Ag(s) + CN^{-}(aq) + O_{2}(aq) --> [Ag(CN)_{2}]^{-} (aq) + H_{2}O(l)

3 0
3 years ago
Zeke is on spring break. He lives in a cold climate, so he decides to drive to a warmer climate. Before he leaves for his vacati
STatiana [176]

The warmer temperatures at Zeke's destination caused the volume of air in his tires to increase.

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Bond formed by the sharing of electrons between atoms.
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3 0
4 years ago
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What is one way to test whether an unknown solution is acidic or basic?
sertanlavr [38]

Answer: There are several ways. The first that comes to mind is a pH meter. A pH electrode Is lowered into the solution, and (Assuming) the pH Meter has been properly calibrated, and the temperature of the solution is set to the calibration of the Meter, the pH can be read directly from an analogue scale or digital readout. Below 7 is acidic, 7 is Neutral, (like Pure Water), and over 7 is Alkaline, or Basic.

A useful, but less accurate method is the use of any number of “pH Indicator Solutions”, which are essentially a type of various colored dyes that change color within differing pH ranges. Usually, if the pH is unknown, a small amount of solution is removed from the container and tested separately - in a “well plate”, or similar method.

These types of dyes, or Indicator Solutions, can be dried upon strips of “pH indicator Paper”, which, depending upon the type can be very useful when carrying out more precisely arrived at pH tests like Titration.

Just to see if a solution is “Acid” or “Base”, Litmus paper is used; “a Red color shows Acidity, and a Blue color, a Base”; ergo, “An Acid Solution will turn Litmus Paper, Red”.

4 0
3 years ago
Convert 732.0 mmHg to atm
enot [183]

Answer:

The answer is

<h2>0.95 atm</h2>

Explanation:

To solve the question we use the following conversion

That's

1 mmHg \cong 0.0013 atm

So we have

If 1 mmHg \cong 0.0013 atm

Then 732 mmHg will be

732 × 0.0013 atm

We have the final answer as

<h3>0.95 atm</h3>

Hope this helps you

5 0
4 years ago
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