SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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2KClO3
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CaBr2 + Na2CO3
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Zn + S
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2Li + FeBr2
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Detailed explanation-1: -CaBr2 + Na2CO3 → CaCO3↓ + 2NaBr This reaction is an acid-base reaction and is classified as follows: Precipitation reaction.
Detailed explanation-2: -A double replacement reaction can be represented by the general equation: AB + CD → AD + CB. AB and CD are the two reactant compounds, and AD and CB are the two product compounds that result from the reaction.
Detailed explanation-3: -In turn, green liquor is a liquid solution with a large quantity of sodium carbonate that reacts with calcium hydroxide producing sodium hydroxide and calcium carbonate, according to the causticizing reaction: Na2CO3(aq) + Ca(OH)2(s) → 2 NaOH(aq) + CaCO3(s). This reaction is slightly exothermic.
Detailed explanation-4: -Count each type of atom in reactants and products. Place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances. Repeat steps 1 and 2 until the equation is balanced. 22-Jun-2020