Chemical Reactions part 1
Is made of two or more substances that are in the same place, but are Not chemically combined
Mixture
Homogeneous mixture of a solvent and solute
Solution
Definition: A change that alter the form or appearance, but doesn’t change it into a different substance
Example:
Cutting an onion, reshaping play dough
Physical Change
Definition:
Temperature decrease
Example:
Instant ice pack
Endothermic Reaction
Definition: Mixture with distinct components that can be separated
Examples:
Salad, spaghetti and meatballs
Heterogenous mixture
Does the dissolving in a solution
Examples:
Salt in water
Solvent
Definition:
When 2 more chemicals combine and rearrange to form a new substance
Example:
Burning, rusting
Chemical Reaction
Definition: matter cannot be created or destroyed
Law of conservation of matter
Definition:
Mixture that looks the same throughout but cannot be separated.
Examples:
Honey, soy sauce
Homogenous mixture
Definition:
Is dissolve in a solution
Examples:
Sugar in water
Solute
Definition: substance that undergoes a chemical reaction
Reactant
Definition: a system that can exchange matter and energy with the environment
Examples: pond
Open system
Definition: heterogeneous mixture where particles don’t separate/settle out
Examples/picture:
Paint, fog and milk
Colloid
Amount of solute in a given amount of solvent
Concentration
Definition: sustenance that are formed as a result of a chemical reactions
Product
Definition: a system where reactants and products cannot escape
Examples: Terrarium
Closed system
Definition:
heterogeneous mixture where particles will separate/settle out
Examples/picture: muddy water, salad dressing
Suspension
How much solute will dissolve in a certain amount of solvent
Solubility
Definition:
Temperature increases
Example:
Burning a candle
Exothermic Reaction
2+2
4