Ask question

Ask question

All categories

3 years ago

9

What do we know about a star if it has a lot of iron it’s core

1 answer:

Sergeu [11.5K]3 years ago

8 0

When a star is fusing iron in its core, it's still giving off insane amounts of energy. The helium, hydrogen, carbon, oxygen, and silicon are still there in the star in different shells. ... Iron cannot be fused into anything heavier because of the insane amounts of energy and force required to fuse iron atoms.
Hope this helps!

You might be interested in

Water ionizes by the equationH2O(l)⇌H+(aq)+OH−(aq)The extent of the reaction is small in pure water and dilute aqueous solutions

tia_tia [17]

Explanation:

$H_2O(l)\rightleftharpoons H^+(aq)+OH^-(aq)$

The value of $K_w$ :

$K_w=[H^+][OH^-]$

a. pOH = 3.51

The sum of pH and pOH is equal to 14.

pH + pOH = 14 (at 25°C)

pH = 14 - 3.51 = 10.49

The pH of the solution is defined as negative logarithm of hydrogen ion concentration in solution.

$pH=-\log[H^+]$

$10.49=-\log[H^+]$

$[H^+]=3.2\times 10^{-11}$

$3.2\times 10^{-11} M$ is the $H^+$ concentration for an aqueous solution with pOH = 3.51 at 25°C.

b.

At a certain temperature, the pH of a neutral solution is 7.56.

Neutral solution means that concentration of hydrogen ion and hydroxide ions are equal.

$[H^+]=[OH^-]$

$7.56=-\log[H^+]$

$[H^+]=2.754\times 10^{-8} M$

The value of $K_w$ at at this temperature:

$K_w=[H^+][OH^-]$

$K_w=[H^+][H^+]$

$K_w=(2.754\times 10^{-8})^2=7.6\times 10^{-16}$

The value of $K_w$ at at this temperature is $7.6\times 10^{-16}$ .

5 0

4 years ago

What type of extinguisher will extinguish a class a, b or c fire?

RUDIKE [14]

Any fire extinguisher should put out a fire, that is unless the extinguisher is old and faulty.

7 0

4 years ago

(3.88 x 10to the 26th)atoms of copper would be equal to how many moles of copper?

marissa [1.9K]

Answer:

69

Explanation:

hey u said what I said didusbevehdysg

4 0

3 years ago

What is the reactants start for H2 + O2 --> H2O

zaharov [31]

Answer:

H2 + O2

Explanation:

H2 + O2 --> H2O

The items on the left side is the reactants. The arrow means yields, and the item the arrow is pointing at is the product.

7 0

3 years ago

Read 2 more answers

Which is a higher temperature 20°c or 25?

Lunna [17]

25 °c is the higher temperature.

Hope This Helps You!
Good Luck Studying :)

3 0

3 years ago

Read 2 more answers