SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The small number on the right of the chemical symbol.
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The large number to the left of a formula.
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Either A or B
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None of the above
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Detailed explanation-1: -In Chemistry the coefficient is the number in front of the formula. The coefficient tells us how many molecules of a given formula are present.
Detailed explanation-2: -The number in front of a chemical formula in a reaction equation is called the coefficient. It’s there to balance the equation.
Detailed explanation-3: -The numbers placed in front of formulas to balance equations are called coefficients, and they multiply all the atoms in a formula. Thus, the symbol “2 NaHCO3” indicates two units of sodium bicarbonate, which contain 2 Na atoms, 2 H atoms, 2 C atoms, and 6 O atoms (2 X 3= 6, the coefficient times the subscript for O).
Detailed explanation-4: -Hint: Coefficients are the numbers or terms used to balance chemical equations and are placed in front of a chemical symbol or formula. It tells us about how many atoms or molecules of substance or compound are involved in the reaction.
Detailed explanation-5: -The number of atoms of each element in a chemical formula is designated by the small number behind each element symbol. If there is no number, it is assumed there is only one of that element. A large number in front of a compound designates how many units there are of that compound.