Stage in a star's evolution formed as the core of a main sequence star uses up its helium and the outer layers escape into space
Answers
Answer:
The stars when they release their helium and get rid of their cape and throw it into space is because it is already the end of their life
Explanation:
During a portion of its life, a bright star due to the thermonuclear fusion of hydrogen in helium in its nucleus, which releases energy that crosses the interior of the star and then radiates into outer space. When the hydrogen in the nucleus of a star is almost depleted, almost all heavier elements than naturally produced helium are created by stellar nucleosynthesis during the life of the star and, in some stars, by nucleosynthesis of supernovae when explode At the end of its life, a star can also contain degenerate matter
Answer: the answer is white dwarf
Explanation:
Related Questions
Write the proper word equation to express the following chemical reaction: 4Fe (s) + 3Sn(NO3)4 (aq) Imported Asset 4Fe(NO3)3 (aq) + 3Sn
What occurs when NaCl(s) is added to water?(1) The boiling point of the solution increases, and the freezing pointof the solution decreases.(2) The boiling point of the solution increases, and the freezing pointof the solution increases.(3) The boiling point of the solution decreases, and the freezing pointof the solution decreases.(4) The boiling point of the solution decreases, and the freezing pointof the solution increases.
Which two gases make up most of the atmosphere?
the metal iridium becomes superconducting at temperatures below . calculate the temperature at which iridium becomes superconducting in degrees celsius. be sure your answer has the correct number of significant digits.
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Kb = [pOH⁺][OH⁻] / [ pH] = 1.7×10⁻⁹
Let x mol dissociate:
[pOH⁺] = [OH⁻] = x [pH] = 0.032 - x ≈ 0.032
[x] [x] / [0.032] = 1.7×10⁻⁹
x₂ = 0.032 * 1.7 x 10⁻⁹
x = 5.44 x 10⁻¹¹ = [OH⁻]
pOH = -log [OH⁻] = -log[ 5.44 x 10⁻¹¹] = 10.26
pH = 14.00 - pOH
pH = 14.00 - 10.26
PH = 3.74
hope this helps!
Answers
Answer:
T(K) = 373.15 K
Explanation:
The kelvin is the base unit of temperature in the International System of Units (SI). The symbol used to express temperature in kelvins is K.
The temperature of zero kelvins is called the absolute zero. It is considered to be the lowest possible temperature, although nothing has reached it. The absolute zero (0K) is - 273.15 degrees Celsius.
This is the equation we can use to solve this question:
We have 100*C.
releasing CO2 that dissolves and forms acid in the oceans
b.
releasing pollutants that lead to smog
c.
releasing CO that dissolves and forms acid in the oceans
d.
releasing pollutants that lead to acid rain
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Answer: Option (a) is the correct answer.
Explanation:
When is released from driving cars, some of which is absorbed by the plants but the rest of
reacts with the sea or ocean water.
It reacts with water molecules and changes the chemistry of ocean water by lowering its pH. As it is known that when pH becomes lower then the substance becomes acidic in nature.
Thus, we can conclude that driving cars lowers the pH of the oceans by releasing that dissolves and forms acid in the oceans.
b. Número de electrones _______________
c. Número de neutrones _______________
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b. Número de electrones es treinta
c. Número de neutrones es veintiseis
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So there is calcium, symbol is Ca and an atomic number of 20.
Carbon: symbol is C and an atomic number of 6.
Oxygen: symbol is O and an atomic number of 8.
In one molecule of CaCO3, there is one atom of Ca, one atom of C, and three atoms of O as shown by the subscript next to O in the formula. There are no other subscripts to indicate more than one atom of the other elements, so there is only one atom of the other two elements
b. False
Answers
Answer:
Correct answer is FALSE I just tested it and it came out right.
Explanation: