1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lidiya [134]
3 years ago
6

Explain how astronomers use spectrographs to identify the composition of a star.

Chemistry
1 answer:
Gwar [14]3 years ago
4 0
Each element absorbs light at specific wavelengths unique to that atom. When astronomers look at an object's spectrum, they can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy.
hope this helps you! :-)
You might be interested in
What do you use to test ph in swimming pool
Alona [7]

Answer:

to make sure the cholerie is not to high

7 0
3 years ago
If the volume of a cylinder is 84,300 cubic centimeters then how many millimeters is this equal to
nevsk [136]

Answer:

84,300,000

Explanation:

Just multiply it by 1,000. 1cm = 10mm, and a cube is the length to a sort of third degree, so you take the 10 to its third degree as well and multiply it by 1,000, instead of 10 like you would to find how many millimeters were in an amount of centimeters. If that makes sense.

8 0
3 years ago
Which group/family contains elements with the smallest radius within the same period?
nasty-shy [4]

Answer:

Halogens

Explanation:

From the given choices, the halogens will have the smallest radius within the same period.

The size of an atom is estimated by the atomic radius. This is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state.

  • Across a period in the periodic table, atomic radii decrease progressively from left to right.
  • Down a group from top to bottom, atomic radii increase progressively due to the addition of successive shells.

Since halogen is the right most group from the choices given, it will have the smallest radius.

5 0
2 years ago
How many moles of sucrose (C12H22O11) would be in 8.7 L of a 1.1 M solution of sucrose?
poizon [28]

Answer:

9.57 mol.

Explanation:

<em>Molarity is defined as the no. of moles of a solute per 1.0 L of the solution.</em>

<em />

<em>M = (no. of moles of solute)/(V of the solution (L)).</em>

<em></em>

∴ M = (no. of moles of sucrose)/(V of the solution (L)).

1.1 M = (no. of moles of sucrose)/(8.7 L).

<em>∴ no. of moles of sucrose = (1.1 M)(8.7 L) = 9.57 mol.</em>

5 0
3 years ago
T OR F
Murljashka [212]

Answer:

The statement is  false. See the explanation below, please.

Explanation:

The hydrogen bond or bridge is a type of dipole-dipole interaction that is generated from the attraction of a hydrogen atom and a very electronegative atom (oxygen, fluorine or nitrogen). Examples of hydrogen bridge molecules: Water (H20), ammonia (NH3).

5 0
2 years ago
Other questions:
  • what is the approximate ph at the equivalence point of a weak acid-strong base titration if 25 ml of aqueous formic acid require
    10·1 answer
  • Word Bank
    6·1 answer
  • The filling of which orbital is represented by the transition metals in period 4? 3d 3s 2s 2p
    8·2 answers
  • Why is the wave energy lower when it reaches the receiver? (Hint: think about what you know about visible light.)
    5·2 answers
  • The Haber Process is the main industrial procedure to produce ammonia. The reaction combines nitrogen from air with hydrogen mai
    8·1 answer
  • In two or more complete sentences describe a primordial soup and explain its importance.
    14·1 answer
  • Complete the chart
    15·1 answer
  • What can do ,when the solution remain in the jet/ nozzle of the pipette?​
    13·1 answer
  • 23.<br> What would happen to the substance in the jar if energy was added?
    13·1 answer
  • The following reaction shows sodium hydroxide reacting with sulfuric acid.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!