Answer:
b: LEADS
Explanation:
i guessed and got it right ahh
Answer:
Sodium sulfite (Na2SO3)
Explanation:
Sulfuric acid is able to displace volatile acids from their corresponding salts and the acids displaced are unstable and they break down to give volatile products
For example, in to reaction of sulfuric acid and sodium sulfite; two processes occur
1. Sulfuric acid forms sodium sulfate and sulfurous acid
Na2SO3(s) + H2SO4(aq) -------> Na2SO4(aq) + H2SO3
2. The H2SO3 is unstable thereby decompose spontaneously to water and sulfur dioxide gas.
H2SO3 -----------> H2O(l) + SO2(g)
Final reaction gives;
Na2SO3(s) + H2SO4 (aq) ---------> Na2SO4(aq) + H2O(l) + SO2(g)
The statement above is TRUE.
When heat is added to a substance, the heat increases the kinetic energy of the particles of the substance and enable to vibrate or move faster, this usually increase the temperature of the substance. However, adding heat does not always increase the temperature of a substance. For instance, during the process of boiling point of water, the additional heat energy that is added to the water is used to break the chemical bonds in water and not to increase the temperature of water.<span />
The Answer Is 12
I Hope This Helps You.
An endothermic reaction is the opposite. This is when a reaction starts colder and ends up hotter, taking in energy from start to finish. In an endothermic reaction, the system gains heat as the surroundings cool down. In an exothermic reaction, the system loses heat as the surroundings heat up.