<u>Answer:</u> The gas produced when sodium phosphide reacts with water is phosphine.
<u>Explanation:</u>
When sodium phosphide reacts with water molecule, it leads to the production of flammable, poisonous gas known as phosphine along with the production of sodium hydroxide.
The chemical reaction for the reaction of sodium phosphide with water follows the equation:
By Stoichiometry of the reaction:
1 mole of sodium phosphide reacts with 3 moles of water to produce 1 mole of phosphine gas and 3 moles of sodium hydroxide.
Hence, the gas produced when sodium phosphide reacts with water is phosphine.
Burning and other changes in matter do not destroy matter. The mass of matter is always the same before and after the changes occur. The law of conservation of mass states that matter cannot be created or destroyed
Answer:
B, C, F. and H
Explanation:
<em>The correct answer would be B, C, F, and H.</em>
According to the kinetic theory, the kinetic energy of molecules of a substance is directly proportional to the temperature of the substance.
<u>The intermolecular forces holding the molecules in a solid together become weaker as the temperature of the solid increases along with the kinetic energy. The molecules vibrate and further apart, leading to the melting of the solid.</u>
The fourth option is correct. Energy is transferred from the fire to the pot, and then to the water, and then to the peas.
