Answer:
3. It should restate the question
4. a controlled experiment
5. if I freeze a tennis ball then it will not bounce as high
Explanation:
NOOOO NO thats not true at all
<span>Esters can be shown in text as: RCOOR or (occasionally) ROCOR.</span>
Answer:
CaC₂(s) + 2H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
Explanation:
We are given;
The unbalanced equation;
CaC₂(s) + 2H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
We are required to balance the equation;
- We need to know that balancing of chemical equations involves putting the appropriate coefficients on reactants and products to ensure equal number of atoms of each element on both sides of the equation.
- Balancing of chemical equations is a try and error method of making sure that the law of conversation of mass in chemical equations is obeyed.
- In our case, the appropriate coefficients will be, 1, 2, 1, 1
Therefore;
The balanced equation will be;
CaC₂(s) + 2H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
Answer:
T= 265 degree
Explanation:
Given. n = 3
Vf = 0.319m3.
Vi = 0.153m3.
Q = 4.86*10^3 J
For external process, change in internal energy is zero
W= Q= 4.86*10^3
Also work done for isothermal process is given by
W= nRT in(vf/vi)
T= w/nR in(vf/vi)
T = 4.86*10^3/3*8.314in(0.319/0.153)
T = 265degree
