Chemical Reactions

What is a chemical reaction?

• A chemical reaction is a process that involves the transformation of one or more substances into different substances with different properties.

• A chemical reaction is a process that involves the transformation of one substance into multiple substances with different properties.

• A chemical reaction is a process that involves the transformation of one substance into multiple substances with the same properties.

• A chemical reaction is a process that involves the transformation of one substance into another substance with the same properties.

What are the reactants in the baking soda and vinegar experiment?

• baking soda and vinegar

• water and salt

• sugar and lemon juice

• flour and oil

What are the products formed in the baking soda and vinegar experiment?

• carbon monoxide gas, water, and sodium chloride.

• methane gas, water, and sodium carbonate.

• carbon dioxide gas, water, and sodium acetate

• oxygen gas, water, and sodium hydroxide.

What type of reaction is the baking soda and vinegar experiment?

• redox reaction

• combustion reaction

• precipitation reaction

• acid-base reaction

What is the chemical equation for the baking soda and vinegar experiment?

• NaHCO3 + CH3COOH -> CO2 + H2O + CH3COOH

• NaHCO3 + CH3COOH -> CO2 + H2O + NaCH3COOH

• NaHCO3 + CH3COOH -> CO2 + H2O + CH3COONa

• NaHCO3 + CH3COOH -> CO2 + H2O + CH3COONa + HCl

What is the role of baking soda in the experiment?

• Baking soda acts as a thickening agent.

• Baking soda helps to preserve the experiment.

• Baking soda acts as a leavening agent.

• Baking soda adds flavor to the experiment.

What is the role of vinegar in the experiment?

• To act as an acid and react with other substances

• To act as a catalyst and speed up the reaction.

• To act as a solvent and dissolve other substances.

• To act as a base and neutralize other substances.

What are some other examples of chemical reactions?

• Combustion, photosynthesis, rusting of iron, digestion of food, and fermentation

• Oxidation, reduction, and precipitation

• Boiling, freezing, and melting

• Evaporation, condensation, and sublimation

What are the signs of a chemical reaction?

• Change in temperature, change in state, change in odor

• Formation of a precipitate, release of gas, change in color, production of heat or light, and formation of a new substance.

• Change in density, change in pressure, change in shape

• Change in volume, change in texture, change in taste

Why is it important to understand chemical reactions?

• To understand how substances interact and transform.

• To impress friends with scientific knowledge.

• To learn about the history of chemistry.

• To memorize the periodic table.