I think the correct answer from the choices listed above is option A. The three components of air are all <span>classified as pure substances since they are not chemically bonded so they can be separated by certain processes and be present as a pure substance. Hope this answers the question.</span>
Answer:
It is (c) because acceleration is the of velocity with time
Answer:
exothermic entropy is increased
Explanation:
An exothermic process is one whose rate increases when the temperature is decreased. Hence if a decrease in temperature favours the dissolution of more solute at equilibrium, then the process is exothermic.
Similarly, the dissolution of a solute in a solvent increases the disorderliness (entropy) of the system because of the increase in the number of particles present. Hence once a solute in dissolved, the entropy of the system increases.
Answer:
C₇ H₁₆ + 11O₂ → 7CO₂ + 8H₂O
Explanation:
Given equation
C₇ H₁₆ + O₂ → CO₂ + H₂O
To solve this problem,
We use a mathematical approach to balance the equation:
aC₇ H₁₆ + bO₂ → cCO₂ + dH₂O
Conserving C; 7a = c
H ; 16a = 2d
O: 2b = 2c + d
Let a = 1
c = 7
d = 8
b = 11
Now insert the parameters and solve;
C₇ H₁₆ + 11O₂ → 7CO₂ + 8H₂O