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19 Cards in this Set
- Front
- Back
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caloric value
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the Kilocalories obtained per gram of the food types: carbohydrate
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calorie (cal)
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the amount of heat energy that raises the temperature of exactly 1g of water exactly 1 degree C.
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energy
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the ability to do work
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gas
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a state of matter characterized by no definite shape or volume
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heat of fusion
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1. the energy required to melt exactly 1g of a substance at its melting point
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kinetic energy
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the energy of moving particles
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potential energy
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an inactive type of energy that is stored for future use
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Properties
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Each substance has a set of properties that are characteristic of the substance and give it a unique identity.
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? Properties are inherent in the substance and can be determined without altering the composition of the substance: color, taste, odor, density, state of matter, melting point, boiling point.
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Physical Properties
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? Properties describe the ability of the substance to interact with other substances to form different substances.
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Chemical Properties
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Physical Changes
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A physical change is a change in the physical properties or a change in the state of matter for a substance without altering the composition of the substance.
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Chemical change
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In a chemical change different substances are formed that have different properties and composition from the original material.
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Chemical equations
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Chemical changes can be represented by chemical equations: word equations, molecule equations, symbol equations.
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Reactant
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A chemical substance entering into a reaction.
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A chemical substance produced from reactants by a chemical change?
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Products
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? Law that states that matter is neither gained nor lost during a chemical reaction.
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Law of conservation of mass
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The SI unit for heat is the ?
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Joule
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Specific Heat
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The specific heat of a substance is a measure of its heat capacity. It is the quantity of heat required to change the temperature of 1 gram of the substance by 1 degree C.
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Energy can neither be created or destroyed. It can be transformed from one form to another.
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Law of conservation of energy
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