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is a process in which one or more substances are transformed into new substances with different properties
CHEMICAL REACTION
What are the products when calcium carbonate is heated?
Calcium oxide and carbon dioxide
Fireflies produce light through a chemical reaction called
BIOLUMINESCENCE
What is the general pattern of a decomposition reaction?
AB → A + B.
What type of decomposition reaction where light energy causes certain compounds to decompose.
OBSERVABLE CLUES THAT A CHEMICAL REACTION HAS OCCURRED
COLOR CHANGE
GAS PRODUCTION
What type of decomposition reaction where heat provides the energy needed to break down a compound.
Thermal Decomposition
Sometimes two liquids react to produce a solid that was not originally present.This newly formed solid is called
Precipitate
What type of decomposition occurs when electricity is passed through water, and what products are formed?
hydrogen gas and oxygen gas
A and B represent the simpler substances called
Products
The chemical name for NaCl
Sodium Chloride or Salt
What happens when baking soda is heated? What are its products?
sodium carbonate, carbon dioxide, and water.
How many reactants are present in a decomposition reaction?
Only one reactant, and it is always a compound.
What are the chemical names of CO₂?
CO₂ – carbon dioxide.
What is a decomposition reaction?
It is a chemical reaction in which one compound breaks down into two or more simpler substances.
What are the three types of decomposition reactions, and what provides the energy for each?
What chemical process uses electrical energy to decompose water into hydrogen gas and oxygen gas?
Electrolysis
What is the chemical name of H₂O₂?
HYDROGEN PEROXIDE
is commonly used as an antiseptic for cleaning minor wounds or its other name is Agua oxigenada
Hydrogen Peroxide
What type of decomposition reaction where Electricity provides the energy needed to break down a compound.
Electrolytic Decomposition
The arrow (→) means
produces or yields
What is the chemical name of H₂O?
Water or dihydrogen monoxide
What are the products when hydrogen peroxide decomposes?
Water and oxygen gas.
What is the chemical name of CaCO₃?
Calcium Carbonate
AB represents a single compound called
Reactants