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
lions [1.4K]
2 years ago
10

How do astronomers observe and learn about celestial objects?

Chemistry
1 answer:
MatroZZZ [7]2 years ago
8 0

Answer:

Astronomers use a number of telescopes sensitive to different parts of the electromagnetic spectrum to study objects in space. Even though all light is fundamentally the same thing, the way that astronomers observe light depends on the portion of the spectrum they wish to study.

Explanation:

You might be interested in
What is the effect of on the volume of a<br> gas?
Scrat [10]

Answer:According to Boyle's Law, the volume of a gas is inversely proportional to the pressure of a gas. Therefore, increasing the volume has the same effect as decreasing the pressure. If the volume in which a gas reaction takes place is DECREASED, the reaction will shift toward the side with fewer moles of GAS.

Explanation:

3 0
3 years ago
Read 2 more answers
15g of magnesium (II) oxide decomposes, find the number of oxygen particles produced at 100% yield.
erastova [34]

2.258625 *10²³ oxygen atoms will be produced.

<h3><u>Explanation:</u></h3>

Decomposition reaction is defined as the type of reaction where one single reactant breaks to produce more than one product only by means of heat or other external factor.

Formula of magnesium oxide = MgO.

The molecular mass of magnesium oxide = 24 +16= 40.

So in 40 grams of magnesium oxide, number of molecules is 6.023 * 10²³.

So in 15 grams of magnesium oxide,, number of molecules is 6.023 *1023 * 15/40 = 2.258625 *10²³.

From one molecule of magnesium oxide, one oxide atom will be produced.

So number of oxide atoms with 100% yeild = 2.258625 *10²³

6 0
3 years ago
What type of compound is Sodium hydroxide?<br> A.acid<br> B.base<br> C.element<br> D.salt
morpeh [17]
The answer is B
b base
3 0
3 years ago
Read 2 more answers
Whats the Number of molecules in 1.500 mole of H2O
deff fn [24]

Answer:

6.02 × 10 23

Explanation:

3 0
3 years ago
Read 2 more answers
A base _____. A.accepts hydrogen ions, B.releases hydrogen ions, C.accepts hydrogen atoms
xxMikexx [17]
<span>C.accepts hydrogen atoms
i think
</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • What do you call anything that has mass and volume?
    14·2 answers
  • Which of the following is the main disadvantage to using fossil fuels?
    10·2 answers
  • How is copper disposed of after use ?
    15·1 answer
  • HELP FAST Plz!!!!!!
    7·1 answer
  • Scientific notation is
    13·2 answers
  • If 5.58 g of iron reacts with sulfur to produce 8.79 g of iron sulfide, what is the mass of reacting sulfur? A) 3215 B) 14:37 C)
    13·1 answer
  • how many H+ ions are in a solution with a pH of 2 and how many H+ ions are in a solution with a pH of 6?
    14·1 answer
  • What is the acceleration of a 50 kg object pushed with a force of 500 newtons?
    6·1 answer
  • What evidence is there of energy release after chemical reaction
    10·1 answer
  • 2. Work is done only when an object.<br> in the<br> of the force<br> that is being applied.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!