Answer:
Why then is carbon dioxide a nonpolar molecule while water is a polar molecule? Carbon dioxide is a nonpolar molecule because its atoms equally share the electrons. Water is polar because its atoms share the electrons unequally.
Explanation:
The sun is the correct answer
Ionic bonds are formed due to tendency of a metal to donate an electron and tendency of non metal to gain an electron.
2,000,000 times
Explanation:
One gram of U-235 produces approximately 2,000,000 times more energy than one gram of coal.
The energy in 1g of U-235 is a nuclear energy whereas energy obtained from coal is chemical energy by combustion. During combustion chemical bonds are broken between the carbon atoms.
- Uranium decays the radioactive fission.
- When it is bombarded with particles, an artificial disintegration is induced.
- Most nuclear reactions are chain reactions in which one step leads to another until stability is produced.
- Each step produces energy for the next process.
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Answer:
(a).
(4 × C) + (8 × H)
= (4 × 12) + (8 × 1)
= 48+8
= 56 g
(b).
= (4 × C) + (6 × H)
= (4 × 12) + (6 × 1)
= ( 48+6 )
= 54 g
(c).
= ( 2 × Si ) + ( 4×Cl ) + (2×H)
= (2×28) + (4×35.5) + (2×1)
= 56 + 142 + 2
= 200 g
(d).
= (1×P) + (4×O) + (3×H)
= 31 + 64 + 3
= 98 g