Answer:
The definition of a physical change is: A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed but no chemical reactions occur.
An example of physical change is: crumbling a piece of paper or freezing water into ice.
Answer:
Answer:
Kc = 0.20
Explanation:
N₂O₄ ⇄ 2NO₂
moles 5.3mol 2.3mol
Vol 5L 5L
Molarity 5.3/5M 2.3/5M
= 1.06M = 0.46M
Kc = [NO₂]²/[N₂O₄] = (0.46)²/(1.06) = 0.1996 ≅ 0.20
Note:
All credit goes to <em>drpelezo </em>(Ace) who created and explained the answer.
Have a nice day, and I hope this helps
<em>-kiniwih426</em>
Answer:
6.52 × 10^14 Hz
i don't know if that's right tbh
A volcanic <em>eruption</em> occurs when the <em>pressure </em> in a magma <em>chamber</em> becomes so great it is released like a valve. Magma is released through the volcano's <em>cone</em> in an eruption of <em>lava</em> rocks (bombs) and ash. A volcanic <em>cone</em> develops over centuries as flowing <em>lava</em> from the active volcano <em>cools </em>to form layers of rock.
Hope this works,
Ahawk
He paid 2 dollars for each bag. Then add 15 cents for that and he would charge $2.15 for each bag.
