Question

1.​MINT CANDIES MAKE YOUR MOUTH FEEL COOLER BUT DOES ​IT ACTUALLY?
​TOPIC – TO FIND OUT WHETHER THE MINT CANDIES WILL ​GIVE/ABSORB THE HEAT
​NOTE: YOU CAN USE A SOLVENT AS A MEDIUM OF EXCHANGE ​OF HEAT.

2.​WRITE WHICH MIXTURE CAN BE SEPERATED BY THE ​METHOD MENTIONED BELOW AND PERFROM THE ​PROCEDURE
​1. Centrifugation
​2. Filtration, Evaporation
​2. Crystallization
3.​REFER THE PPOINTS GIVEN BELOW FR THE WRITE-UPS.
​1.​Aim
​2.​Procedure
​3. ​Observation and conclusion
​4.​Include photographs

Answer 1

Answer:

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)

Explanation:

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