Answer:
C.) That all matter was composed of earth, fire, water and air
Explanation:
Just took the test
<span>C. Their direction of motion is south and north. </span>
C. CO2, carbon dioxide is a covalent compound,it is not formed from its respective ions,it does not donate or receive electrons to form a compound
Answer:
212.5 mL
both the original and the diluted solution have 0.765 moles of KCl
Explanation:
c1V1 = c2V2
V2 = c1V1/c2 = (1.8 M×425 mL)/1.2 M = 637.5 mL
(637.5 - 425) mL = 212.5 mL
n = (1.8 mol/L)(0.425 L) = 0.765 moles of KCl
since it's a dilution, the diluted solution has the same number of moles as the original solution, 0.765 moles of KCl
