Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
caloric value
|
the Kilocalories obtained per gram of the food types: carbohydrate
|
|
calorie (cal)
|
the amount of heat energy that raises the temperature of exactly 1g of water exactly 1 degree C.
|
|
energy
|
the ability to do work
|
|
gas
|
a state of matter characterized by no definite shape or volume
|
|
heat of fusion
|
1. the energy required to melt exactly 1g of a substance at its melting point
|
|
kinetic energy
|
the energy of moving particles
|
|
potential energy
|
an inactive type of energy that is stored for future use
|
|
Properties
|
Each substance has a set of properties that are characteristic of the substance and give it a unique identity.
|
|
? 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.
|
Physical Properties
|
|
? Properties describe the ability of the substance to interact with other substances to form different substances.
|
Chemical Properties
|
|
Physical Changes
|
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.
|
|
Chemical change
|
In a chemical change different substances are formed that have different properties and composition from the original material.
|
|
Chemical equations
|
Chemical changes can be represented by chemical equations: word equations, molecule equations, symbol equations.
|
|
Reactant
|
A chemical substance entering into a reaction.
|
|
A chemical substance produced from reactants by a chemical change?
|
Products
|
|
? Law that states that matter is neither gained nor lost during a chemical reaction.
|
Law of conservation of mass
|
|
The SI unit for heat is the ?
|
Joule
|
|
Specific Heat
|
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.
|
|
Energy can neither be created or destroyed. It can be transformed from one form to another.
|
Law of conservation of energy
|