These are all physical properties.
hopefully it helps.
Answer:
0.0957 M
Explanation:
Equivalence appears to occur upon addition of 20 mls of 0.0957 M HCl.
0.02 L x 0.0957 mole/L = 0.001914 moles HCl added
CH3NH3 + HCl ==> CH3NH4^+ Cl^-
Molarity of CH3NH3 initially present = 0.0957 M
pH < 7 because the reaction is between a strong acid (HCl) and a weak base (methylamine)
<span>C. The stratosphere. About 90% of the ozone is in the stratosphere which begins about 8 miles above the Earth's surface.</span>
Answer:
A new element
Explanation:
As you add mopre and more protons and electrons and neutrons it keeps on crating new.