Answer:
for me
Step-by-step explanation:
I think
volume of a cone=1/3πrh
volume of a cone =1/3×22/7×7×4
volume=462/21
volume=22
Answer:
Answer D.
Step-by-step explanation:
Glad to help:)
Explanation: The first line is solid and the 2nd is dashed.
Yes she is correct because 1/3 is only part of one
Step-by-step explanation:
Zn + 2HCl => ZnCl2 + H2
Moles of Zn = 13g / (65.38g/mol) = 0.198mol
Volume of HCl = 0.396mol / (0.25mol/dm³) = 1.58dm³.
Volume of H2 = 0.198mol * (22.4dm³/mol) = 4.43dm³.
