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Recap - Mystery Powder

Part of the Food Chemistry and the Lab section of Coddy's Chemistry journey. Lesson 25 of 27.

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Challenge

A white powder fizzes when hydrochloric acid is added, and the gas turns limewater cloudy: it is calcium carbonate. Balance the equation of the test:

CaCO₃ + HCl → CaCl₂ + H₂O + CO₂

Try it yourself

Equation balancerBalance the equation

CaCO3HClCaCl2H2OCO2

All lessons in Food Chemistry and the Lab

1Carbohydrates

SugarsGlucose and FructoseStarch and CelluloseRecap - Sugar Detective

4Food Energy and Additives

Energy in FoodVitaminsPreservatives and pHRecap - Food Label

7Practice Problems

Recap - Fat in ChipsRecap - Vitamin C Titration

2Fats and Oils

Fatty AcidsSaturated and UnsaturatedTriglycerides and EstersRecap - Oil or Fat

5Laboratory Skills

Lab SafetyMeasuring Mass and VolumeMaking a SolutionSeparating MixturesRecap - Lab Notebook

3Proteins

Amino AcidsPeptide BondsDenaturing ProteinsRecap - Protein Builder

6Experiments

Titration in the LabTests for IonsRates in the LabRecap - Mystery Powder