Gravity when the mantle cools it becomes heavier and therfore sinks
Their formation involves rapid cooling
Answer:
weak bonds break and strong bonds form
Explanation:
An exothermic reaction is a chemical reaction in which heat energy is evolved during the reaction process.
Bond formation requires energy while bond breakage releases energy. More energy is needed for the formation of weak bonds as compared to strong bonds.
<em>Hence, when weak bonds break, they release more energy than needed to make a corresponding strong bond leading to the release of the remaining energy as heat.</em>
Lydia and Damien will select bases that have a small Kb and which are found in the storage cabinet in solutions with high concentrations.
Explanation:
Before choosing a bottle Lydia and Damien should consult a Kb (base dissociation constant) table of bases. The lower the Kb the weaker the base.
Because they were asked by the profesor to select bottles of concentrated bases they will choose the solution that have the highest concentration. Weak bases that are commonly found in laboratories are triethylamine and pyridine.
Learn more:
about weak bases
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