a square boat made from iron has overall dimensions of 2.00 cm x 11.0 cm x 11.0 cm. it has a mass of 213 g. what is its density
2 answers:
Answer: Density of the boat will be
Explanation: Density of a substance is calculated using the formula:
.....(1)
Here, Dimensions of a boat is given, we can calculate the Volume using:
Volume = length × breadth × height
Dimensions are 2.00cm × 11.00cm × 11.00cm
Volume = 2cm × 11cm × 11cm =
Mass of the boat = 213 grams
Putting values in equation 1, we get
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Explanation:
1. Water decomposition
- Decomposition reactions are represented by-
The general equation: AB → A + B.
- Various methods used in the decomposition of water are -
- Electrolysis
- Photoelectrochemical water splitting
- Thermal decomposition of water
- Photocatalytic water splitting
- Water decomposition is the chemical reaction in which water is broken down giving oxygen and hydrogen.
- The chemical equation will be -
Hence, balancing the equation we need to add a coefficient of 2 in front of on right-hand-side of the equation and 2 in front of
on left-hand-side of the equation.
∴The balanced equation is -
→
2. Formation of ammonia
- The formation of ammonia is by reacting nitrogen gas and hydrogen gas.
→
Hence, for balancing equation we need to add a coefficient of 3 in front of hydrogen and 2 in front of ammonia.
∴The balanced chemical equation for the formation of ammonia gas is as follows -
→
.
- When 6 moles of
react with 6 moles of
4 moles of ammonia are produced.