The answer is 4)change in enthalpy
<span>Step 1)
write out all aqueous compounds as ions
2H+ (aq) + 2Br- (aq) + Ba2+ (aq) + 2OH- (aq) --> 2H2O (l) + Ba2+ (aq) + 2Br- (aq)
Step 2)
Cross out the spectator ions (ions that appear on both sides of the reaction)
2H+ (aq) + 2OH- (aq) --> 2H2O (l)
what you have left is the net ionic equation.
I hope this helped.</span>
Answer:
The total volume of the buffer is 75,0mL
Explanation:
A buffer is a mixture of a weak acid with its conjugate base or a weak base with its conjugate acid.
The buffer than Stu and Doc made is:
CH₃COOH ⇄ CH₃COO⁻ + H⁺
Doc add 30.0 mL of 0.0635 M CH₃COOH while Stu add 45.0 mL of 0.0285 M NaCH₃COO (CH₃COO⁻)
Thus, the total volume of the buffer is:
30,0mL + 45,0mL =<em> 75,0 mL</em>
I hope it helps!
Answer:
Chemical I would assume.
Explanation:
This is because drugs have chemicals in them.
I have the same question right now and i think that it is D
