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
saw5 [17]
1 year ago
12

How do we know that sunspots are associated with the sun's magnetic field?

Chemistry
1 answer:
Genrish500 [490]1 year ago
8 0

Answer:

astronomers know that sunspots are associated with magnetic fields because they can look at the spectral lines that come from the sunspots and measure by how much these lines are split.

You might be interested in
Some properties of liquid water are very different from those of solid water (ice). Explain why freezing is considered a physica
drek231 [11]

Answer:

A chemical change is a change in the chemical makeup of a substance and results in a new substance. Ice and water both have the same chemical makeup - ice is just a different state and has the same atoms but in an expanded form.

Explanation:

8 0
3 years ago
Sodium chloride is an example of a
Andrei [34K]
C. Weak acid is the correct answer
6 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST! Explain how a pure metal is held together. Include a definition of a metallic bond in your explanation. Pl
vazorg [7]

Explanation:

A chemical bond which is formed in between positively charged atoms when there is sharing of free electrons in a lattice of cations is known as a metallic bond.

In a pure metal, atoms are surrounded by free moving valence electrons which move from one part of metal to another.

Thus, we can conclude that pure metals are held together by metallic bonds due to attraction between mobile valence electrons and positively charged metal ions.


7 0
3 years ago
Read 2 more answers
Chlorine is a toxic, corrosive, reactive gas. Which representation (structural formula, electron dot structure, or three-dimensi
DanielleElmas [232]

electron dot structure

Explanation:

Chemical reactions are driven by transfer or sharing of electrons between two or more atoms. To show a specie that is reactive, a sound knowledge of the distribution of electrons in the atom is necessary.

  • The electron dot structure shows only chemical symbol of the element surrounded by dots which represents the valence electrons.
  • The chemical symbol represents the nucleus and all electrons except the valence ones.
  • The dots arranged on the four sides are called lone pairs. Those that are unpaired are called odd electrons.
  • Chlorine has 7 valence electrons in its outermost shell.
  • It is made up of 3 lone pairs and 1 odd pair of electron.
  • The odd pair accounts for the reason why chlorine is very reactive.
  • It will only require just one electron to join the odd pair so as to complete the octet and be like the noble gases.

Learn more:

lewis dot structure brainly.com/question/5248264

resonance brainly.com/question/6786947

#learnwithBrainly

6 0
3 years ago
Select all that apply.
Fed [463]
 To improve the efficiency of fireplaces, technologies such as A. addition of catalytic combustors and B. <span>addition of boilers are used in so far. Addition of catalytic combustors hastens the process and makes use of inerts that cannot be used. The addition of boilers also adds to the efficiency by converting fluids to higher temperatures,</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Hydrogen produced from a hydrolysis reaction was collected over water and the following data was compiled.
    12·2 answers
  • How many moles of HCL are in 20 ml sample of .10 M HCL
    8·1 answer
  • Molality (m) is _______. A. the number of moles of solute / the number of kilograms of solvent B. the number of kilograms of sol
    15·1 answer
  • Is matter and mass always the same
    14·2 answers
  • What is the molar mass of magnesium
    6·1 answer
  • Non-metal atoms can form:
    10·2 answers
  • Which of the following is an example of an alloy?
    11·1 answer
  • URGENT, TEST DUE AT MIDNIGHT
    9·2 answers
  • Denver constructs an electric bell as shown in the diagram below.
    9·1 answer
  • Write the balanced chemical equation for the reaction of glucose (C6,H12,O6) with oxygen gas to produce carbon dioxide gas
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!