Soap has both a polar end and a nonpolar end. Thus, it maybe soluble to most of the substances. It exhibits both properties of non-polar and polar molecules. The hydrocarbon chain is the non-polar side while the salt end is the polar end.
Answer:
Respiration is considered as exothermic reaction because energy is released in this process. Glucose combines with oxygen present in our cells to form carbon dioxide and water along with energy.
Explanation:
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Example of correct chemical formula is Al2O3
Explanation
Al2O3 is correct because Aluminium (Al) has a valence of three(3) while oxygen(O) has a valence of two (2) . when writing a chemical formula one start with cation(POSITIVELY CHARGED) symbol followed by anion symbol (negatively charged). The valence number are interchanged between cation and anion and are then written as subscript.
Answer:
B) a substance made of just one kind of atom that cannot be broken down into something simpler
Explanation:
Elements are what you find on the periodic table of elements.
Take oxygen, for example. You can have one or multiple atoms, but if they are all oxygen atoms it's an element.
