1.1 moles of C10H8 is the limiting reagent in the reaction between reaction C10H8 and O2
.
C10H8 + 12O2 ----> 10CO2 + 4H2O
C10H8 is the limiting reagent since 1.1 moles of C10H8 is totally consumed during the reaction
Given the choices;
A) A candle flame
B) Baking bread
C) The chemical reaction in a "cold pack" often used to treat injuries
D) The vaporization of water
The correct answer would be A, a candle flame.
An exothermic reaction is a type of reaction where energy is lost from the system to the surroundings in form of heat and light energy. The opposite of exothermic reaction is the endothermic reaction where energy is absorbed from the surrounding to the system.
<h3>Answer:
234 90Th → 0 -1e + 234 91Pa Explanation:
Given that :
Thorium 234 decays by beta emission Beta emission = 0, - 1 e
234 90Th → 0 -1e + 234 91Pa Hence, when Thorium 234 90 undergoes a beta Decay ; mass number remains the same at 234 while atomic number increases by 1, becoming (90 + 1) = 91 to form a protactinium nuclide.
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