Chemical Reactions Flashcards
To learn Chemical Reactions (5 cards)
What is a chemical reaction?
A chemical reaction is a process where substances (reactants) are transformed into new substances (products) with different properties.
What are some signs of a chemical reaction?
Signs of a chemical reaction include color change, gas formation, temperature change, and the formation of a precipitate.
What is combustion?
Combustion is a chemical reaction where a substance reacts with oxygen to release energy, usually in the form of heat and light.
What is the law of conservation of mass?
The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction; the mass of the reactants must equal the mass of the products.
What factors affect the rate of a chemical reaction?
Factors include concentration, temperature, surface area, and the presence of a catalyst.
