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
mixer [17]
3 years ago
10

Huge amount of energy is being produced in the core of a hot star due to

Chemistry
1 answer:
ss7ja [257]3 years ago
5 0
The answer is below !


D.

You might be interested in
Find the total number of atoms in a sample of cocaine hydrochloride, c17h22clno4, of mass 23.0 mg .
Nataliya [291]
From the periodic table:
mass of carbon = 12 grams
mass of hydrogen = 1 gram
mass of nitrogen = 14 grams
mass of oxygen = 16 grams
mass of chlorine = 35.5 grams
Therefore,
molar mass of <span>c17h22clno4 = 17(12) + 22(1) + 35.5 + 14 + 4(16) = 339.5 grams

number of moles = mass / molar mass
number of moles = (23*10^-3) / (339.5)
number of moles = 6.77 * 10^-5 moles

number of atoms = number of moles * Avogadro's number
number of atoms = 6.77*10^-5 * 6.022*10^-23
number of atoms = 4.079 * 10^-27 atoms</span>
3 0
3 years ago
Which of the following vary for isotopes of atoms of the same element?
cupoosta [38]

Answer:

The answer is B. Atomic Mass

7 0
2 years ago
Read 2 more answers
Which of the following can be separated by physical means: a compound or a mixture. Explain.
sineoko [7]

Answer:

a mixture

Explanation:

in a mixture the substances havent chemically combined so it is easy to just separate them through physical means

4 0
3 years ago
Compare the number of valence electrons in an atom of oxygen, o, with the number of valence electrons in an atom of selenium, se
Fiesta28 [93]
Oxygen and selenium both have 6 valence electrons. They're in the same group hope this helps
4 0
3 years ago
All of the following statements about carbohydrates are true EXCEPT: Group of answer choices they are composed of carbon, hydrog
vitfil [10]

Whats the question?                            Cause idk

                             

6 0
2 years ago
Other questions:
  • What are the important chemical reactions in the food industry
    5·1 answer
  • What is the limiting factor in determining the accumulation of siliceous ooze/calcareous ooze, respectively?
    13·1 answer
  • Three beakers contain clear, colorless liquids. One beaker contains pure water, another contains salt water, and another contain
    14·2 answers
  • Calculate the initial rate for the formation of c at 25 ∘c, if [a]=0.50m and [b]=0.075m
    8·2 answers
  • A fog forms over a lake. What two changes of state must occur to produce the fog?
    10·2 answers
  • The hydrogen peroxide solution used on cuts and scrapes is 3%. Stronger solutions can cause chemical burns. If you mistakenly bu
    5·1 answer
  • What is the formula of phosphorus pentabromide
    11·1 answer
  • Calcium atoms have 20 protons, but tend to form ions with a 2+ charge. How
    7·2 answers
  • What charge is a complete atom​
    10·1 answer
  • What are the sex cells of the plants that Mendel studied?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!