Answer:
Number of moles
Explanation:
Using the number of moles in chemical reactions, we can determine the quantity of products and even the reactants that are combining to form them.
The number of moles is derived using the expression below is;
Number of moles = 
Once we establish the number of moles of any of the specie given from the mass and molar mass, we can relate it to any other species.
Answer:
II. Rearrange the following jumbled words/phrases to make meaningful sentences: 5x1=5
a. certainly/the laughter/is/medicine/best
b. laughter/fact/is/in/a/panacea/for/diseases/all
c. lowers/pressure/by/circulation/it/blood/increasing/blood
d. a sense/and promotes/of/stress/well-being/laughter/decreases.
e. healthy food/ needed/is/better/also/lead/to/a/life
<span>As we know through the principle of conservation of energy, energy can neither be created nor destroyed. Therefore, the energy removed from the water in order to make it freeze is absorbed by the surroundings. This is why the surroundings in which freezing is taking place are below freezing. This is more easily illustrated in the example of condensation. If you were to hold a plate over a pot of boiling water, some of the water would give its energy to the plate and condense on its surface.</span>
