1 W is equivalent to 1 J/s
So,
0.5 Wh = 0.5 (J/s) (h)
Converting h to s,
0.5 (J/s) (h) (60min/1h) (60s/1min) = 1800J
Thefore,
0.5Wh is 1800J or 1.8kJ of heat energy
Answer:
Formula: H2O Formula Weight: 18.02 CAS No.: 7732-18-5 Density: 1.000 g/mL at 3.98 °C(lit.)
Explanation:
Answer:
The presence of hydrogen ions
Explanation:
Nitric acid is formed when hydrogen ions combine with nitrogen oxide ions leading to formation of a strong acid. Wheareas for strong bases the hydroxyl iins must be present, for strong acid, the hydrogen ions contribute to the acidity. Therefore, from the formula of nitric acid, it has hydrogen ions, an indicator of a strong acid.
I did the math and i got 450 but i dont know if its right
Answer:
1. a = 2, b = 1 and c = 2
2. a = 1, b = 3, c = 2 and d = 2
Explanation:
According to law of conservation of mass, the mass can neither be created nor destroyed.
Hence, for a chemical equation the left hand side should be equal to the right hand side.
Therefore, the two balanced equations are;
2 CO + O₂ → 2 CO₂
C₂H₄ + 3 O₂ → 2 CO₂ + 2 H₂O
