SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a chemical equation, such as Na + Cl
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Na
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Cl
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the arrow
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NaCl
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Explanation:
Detailed explanation-1: -Sodium (Na) combines with chlorine (Cl2) to form sodium chloride, or table salt (NaCl) is an example of a combination reaction.
Detailed explanation-2: -Na (s) + Cl2 (g) → NaCl (s) Inspection of this equation, however, shows that, while there is one sodium atom on each side of the arrow, there are two chlorine atoms in the reactants and only one in the products.
Detailed explanation-3: -If sodium metal and chlorine gas mix under the right conditions, they will form salt. The sodium loses an electron, and the chlorine gains that electron. This reaction is highly favorable because of the electrostatic attraction between the particles. In the process, a great amount of light and heat is released.
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