Answer:
Physical changes are when the object can be returned back into their original form. Chemical changes are when the object gets changed and can't get reversed.
Explanation:
1-physical
2-physical
3-physical
4-chemical
5-chemical
6-chemical
7-physical
8-chemical
9-chemical
10-chemical
Filtration<span> is the mass movement of water and solutes from plasma to the </span>rena<span>tubule that occurs in the </span>renal<span> corpuscle, hope it helps</span>
No of atoms = 6Ca + 4(1P + 4O)] = 6 atoms + 4x5 atoms = 6 atoms + 20 atoms
= 26 atoms
Answer:
Hey there
Explanation:
The process where organisms better adapted to their environment tend to survive and produce more offspring is called natural selection. It is one of the points of Darwinism by Charles Darwin.
Hope it helps
Explanation:
The reaction is as follows.
Standard values of bond energies are as follows.
C-C = 347 kJ/mol
C-H = 414 kJ/mol
C-O = 360 kJ/mol
O-H = 464 kJ/mol
O=O = 498 kJ/mol
C=O = 799 kJ/mol
Hence, calculate the change in enthalpy of the reaction as follows.
= [5(C-H) + 1(C-C) + 1(C-O) + 1(O-H) + 3(O=O)] - [4(C=O) + 6(O-H)]
= ![[5 \times 414 + 1 \times 347 + 1 \times 360 + 1 \times 464 + 3 \times 498] kJ - [4 \times 799 + 6 \times 464]kJ](https://tex.z-dn.net/?f=%5B5%20%5Ctimes%20414%20%2B%201%20%5Ctimes%20347%20%2B%201%20%5Ctimes%20360%20%2B%201%20%5Ctimes%20464%20%2B%203%20%5Ctimes%20498%5D%20kJ%20-%20%5B4%20%5Ctimes%20799%20%2B%206%20%5Ctimes%20464%5DkJ)
= (4735 - 5980) kJ
= -1245 kJ
Thus, we can conclude that the enthalpy of given reaction is -1245 kJ.
