Answer:
gasss
Explanation:
gas increases the kinetic energy of the particles, causing the gas to expand.
Answer:
(a) Equation of reaction:
2Na + 2H20 = 2NaOH + H2
(b) 0.46g of sodium was used in the reaction
Explanation:
(a) 2 moles of sodium reacted with 2 moles of water to yield 2 moles of sodium hydroxide and 1 mole of hydrogen gas
(b) mass of hydrogen gas produced (m) = PVM/RT
P = 101.3kpa = 1atm, V = 246mL = 246cm^3, M = 2g/mol, R = 82.057cm^3.atm/gmol.K, T = 25°C = 25+273 = 298K
m = (1×246×2)/(82.057×298) = 0.02g of hydrogen gas
From the equation of reaction
2 moles (46g) of sodium produced 1 mole (2g) of hydrogen gas
0.02g of hydrogen gas was produced by (46×0.02)/2 = 0.46g of sodium
Explanation: Some of the most important properties of synthetic materials are as follows: 1. Tensile strength 2. The Action of water 3. The Action of heat and flame 4. Thermal conductivity 5. Electrical conductivity. The usefulness or otherwise of a synthetic material depends upon the following properties. 1. Tensile strength:
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The stoichiometry of the reaction gives the molar ratio in which the reactants react with each other and the ratio in which products are formed.
The coefficients of the reactants in the reaction follow the stoichiometry
the balanced chemical equation for the reaction is as follows;
2C₃H₆(g) + 9O₂(g) ---> 6CO₂(g) + 6H₂O(l)