EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a chemical equation such as Na + Cl
A
products
B
phases
C
reactions
D
reactants
Explanation: 

Detailed explanation-1: -Answer and Explanation: Reactants are to the left of the equation, whereas products are to the right of the equation. For the chemical equation NaCl → Na + Cl we have to look at the beginning atoms/compounds on the left side of the arrow.

Detailed explanation-2: -A combination reaction is one in which two or more substances (the reactants) are combined directly to form a single product (the product). An example is the reaction in which sodium (Na) combines with chlorine (Cl 2 ) to form sodium chloride, or table salt (NaCl).

Detailed explanation-3: -2Na (s) + Cl2 (g) 2NaCl (s) This can be understood by saying that two sodium atoms combine with one diatomic chlorine molecule to form two ionic units of sodium chloride. Another aspect of chemical reactions is the physical properties of compounds, or how atoms and molecules fit together.

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