Answer: C. Atoms cannot be subdivided, created, or destroyed. This is the correct answer
B.) Heterogeneous
The prefix homo is referred to meaning the same or equal
Given:
Volume of KOH = 53.0 mL
Concentration of KOH = 0.320 M
Volume of HNO3 = 28.0 mL
Concentration of HNO3 = 0.250 M
Balanced Equation:
KOH + HNO3 ===> KNO3 + H2O
0.320 0.250 0 0
H2O ===> H+ + OH-
Solve for the concentration of OH-
Rate of effusion gas/rate of effusion H2 = √(M(H2))/√(M(gas))
0.344= √2/√(M(gas))
√(M(gas))= √2/0.344
M(gas)= (√2/0.344)² =2/(0.344)² ≈16.9
Answer:
a. increase
Explanation:
Based on the kinetic molecular theory of gases, the average kinetic energy of the system will increase.
- The average kinetic energy is heat
- If temperature increases, heat of a system will also rise.
- According the kinetic molecular theory "the temperature of the gas is a measure of the average kinetic energy of the molecules"
Therefore, due to the increase in temperature, the average kinetic energy of the system increases.
