Answer:
Bombardment by asteroids
Explanation:
All of the other ones explain themselves
Answer: 30.978
Explanation:
From the equation 2 moles of Fe will result in 3 moles copper
so .325 moles Fe will result in .4875 moles Cu
Cu weights 63.546 gm per mole
.4875 moles * 63.546 gm / mole = 30.978 gm of Cu
Release of heat, color change, or produce of bubbles create are chemical changes that create sound.
Negative symbol which means that gain of electron.
I not sure about the answer sorry!! if you will get wrong in your book
KOH(s) ----> K⁺(aq)+OH⁻ (aq)
s-solid,
aq - aqueous
