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What is a catalyst?
A substance that increases the rate of a chemical reaction but it’s not it’s self consumed in the reaction.
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A reaction in which energy is released.
Exothermic reaction
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What are products?
The substance formed by a chemical reaction
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What is subscript?
The number in the bottom right below and element symbol. Tells the number of atoms in each element present in a compound
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There is nothing in this one
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What is precipitate?
A solid product that may form when chemicals into liquids react.
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Reaction in which energy is absorbed?
Endothermic reaction
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bonds broken; methane and oxygen when natural gas is burned; on the left side of a chemical equation.
Reactants
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What is physical change?
A change in a substance that does not involve a change in the identity of the substance
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When an acid and base combine to form a neutral salt and water
Neutralization reactions
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What are reactants?
The substance present at the beginning of a chemical reaction.
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Change the way in which atoms are arranged by causing bonds between the atoms to break and new bonds to form between different atoms.
Chemical reaction
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What is products?
New bonds formed; carbon dioxide and water when natural gas is burned; on the right side of a chemical equation
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What is chemical change?
A change in matter that produces one or more new substances
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A chemical reaction in which a substance reacts rapidly with oxygen often produces heat and light
Combustion
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What is respiration?
The breakdown of glucose to obtain energy.
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Number that indicates how many molecules of a reactant or product are involved in a chemical reaction.
Coefficient
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The Process that uses energy from sunlight to change carbon dioxide and water into glucose and oxygen.
photosynthesis
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What is synthesis reaction?
A reaction in which two or more substances combine to form a new compound
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A chemical change in which one element replaces a second element in a compound
Single replacement reaction
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What is the law of conservation of mass?
The law that states the mass of the reactants is always equal to the mass of the products
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Energy associated with bonds.
Bond energy.
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What is Respiration?
The reverse of photosynthesis; produces carbon dioxide and water from oxygen and glucose; energy released can be used for growth of new cells or movement
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What is decomposition reaction?
A reaction in which a single compound breaks down to form two or more similar substances
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The ions of two compounds change places in an solution to form two new compounds
Double replacement reaction’s
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