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
tatuchka [14]
3 years ago
15

Describe the light spectrum of a star

Chemistry
1 answer:
romanna [79]3 years ago
5 0

Answer:

The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. Essentially, that equates to the colors the human eye can see. It ranges in wavelength from approximately 400 nanometers (4 x 10 -7 m, which is violet) to 700 nm (7 x 10 -7 m, which is red).

(Hope this helps) Sky

You might be interested in
Which of the following represents a hydrocarbon that contains one double bond somewhere in the carbon chain?
SVEN [57.7K]
The answer is alkene.

An alkane is a saturated hydrocarbon, thi is it has only single bonds.

Alkenes and alkynes are unsaturated: alkenes have double bonds and alkynes have triple bonds.

Subsituted hydrocarbon, is a hydrocarbon with one hydrogen substituted by another element or a group.

For example:

CH3 - CH - CH3
           |
          F

8 0
3 years ago
Which substance can be described as cations bonded together by mobile electrons?A) Ag(s)
mart [117]

Answer:A

Explanation:

In a metallic bond, the actions are simply held together by mobile electrons which form an electron cloud. This electron cloud holds the cations together in the solid metallic substance.

6 0
3 years ago
1. Which two groups of elements in the periodic table are the most reactive?(1 point) A) alkali metals and halogens B) alkaline
tatyana61 [14]

Answer:

Explanation:

1) alkali metals and halogens as alkalis have 1 electron they need to get rid of in order to gain a full outer shell of electrons and the halogens have to gain 1 electron.

2) they have the same number of electrons on the outer shells

3)they usually have high melting points

4) low or no reactivity

5) group 7

4 0
3 years ago
An unknown acid has a hydronium ion concentration of 0.00352. what is its ph
Ilia_Sergeevich [38]

Answer:

2.453.

Explanation:

<em>∵ pH = - log[H₃O⁺] </em>

[H₃O⁺] = 0.00352 M.

<em>∴ pH = - log[H₃O⁺] </em>= - log(0.00352) = <em>2.453.</em>

7 0
3 years ago
What is a disadvantage of using solar energy?
Nostrana [21]

Answer:

c

Explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • A chemical names an element
    9·1 answer
  • The chemical formula of glucose is C6H12O6 , so it is classified as a(n) Question 4 options: pure substance. element. solution.
    13·1 answer
  • In which state of matter do molecules have the lowest kinetic energy?
    15·2 answers
  • HELP ASAP SCIENCE PIC IS BELLOW HURRY (pls) i will mark you brainliest and will give you 17 points
    14·1 answer
  • In a titration of 35.00 mL of 0.737 M H2SO4, __________ mL of a 0.827 M KOH solution is required for neutralization.
    6·1 answer
  • Some animals migrate, or seasonally move to a different place. In some bird populations, such as Canada geese, some birds migrat
    7·1 answer
  • 42,000 mL is equal to L
    7·1 answer
  • Will any of these properties change after a couple of hours in the sun
    11·1 answer
  • Please help!
    5·1 answer
  • How to draw ethyl pentanoate?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!