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
Natalija [7]
3 years ago
15

Scientists study the dark lines in a star's spectrum to identify _____.

Chemistry
2 answers:
lisov135 [29]3 years ago
8 0

Answer:

the star's origin (i think)

Explanation:

Sergeeva-Olga [200]3 years ago
6 0
Elements in the star,
but from spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star.
You might be interested in
What is the pressure of 4 moles of helium in a 50 L tank at 308k using PV=nRT
Ilya [14]

Hey there!:

p = ??

n = 4 moles

V = 50 L

T = 308 K

R =  0.082 atm

p*V = n * R * T

p * 50 = 4 * 0.082 * 308

p*50 = 101.024

p = 101.024 / 50

p = 2.020 atm


Hope that helps!


8 0
3 years ago
Read 2 more answers
Which of the following substances heats the fastest?
Aneli [31]

Answer:

Zinc

Explanation:

The specific heat capacity can be described as the amount of heat required to raise the temperature of a substance by one degrees Celsius. It is represented by C or S. The greater the carrying capacity of a substance, the more will be the heat required for that substance.

As we can see in the information given in the question, the specific heat capacity of zinc is the lowest as compared to steel, water and aluminium. Hence, zinc is the correct option.

7 0
3 years ago
This is science not chemistry
snow_lady [41]

That is actually physics because it talks about motion.

7 0
2 years ago
Solve the following problem and round the correct number of significant
RUDIKE [14]

Answer:

4.5 + 2.34 = 6.8

Sig Figs:

2

Decimals:

1

Scientific Notation:

6.8 × 10ⁿ

Words:

six point eight

5 0
2 years ago
What is the name of the compound with the formula B2C14?​
agasfer [191]

Answer:

Diboron tetrachloride --->  B2Cl4

6 0
3 years ago
Other questions:
  • A solution used to chlorinate a home swimming pool contains 7% chlorine by mass. An ideal chlorine level for the pool is one par
    7·1 answer
  • If element X has 25 protons, how many electrons does it have?
    6·2 answers
  • Is glue a suspension colloid or solution?
    10·2 answers
  • Given the following equation: 8 Fe + S8 —> 8 FeS what mass of iron is needed to react with 5.65 mol of sulfur S8
    6·1 answer
  • You are balancing an ionic compound. Let's call it: AB.
    9·1 answer
  • 22.4 liters is the same as:
    8·1 answer
  • An electromagnetic wave has a wavelength of 0.12 meters. what is that in nanometers?
    13·1 answer
  • Can somebody help me name this organic compound!!​
    15·2 answers
  • How many grams are in 6.8L of Oxygen gas (O2) at STP
    15·1 answer
  • When a substance is added to water, bubbles form. How can you confirm the type of change that took place?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!