Unit B - Matter and Chemical Change Flashcards
Chemical Properties
How substance interact with each other
Chemical change
occurs when new substance is formed
Metal + Non metal =
Ionic compound
Non metal + Non metal =
Molecular compound
Multivalent
An ionic compound with a metal with two or more possible charges
How to name an ionic compound
add __ide to the non-metal
NaCl = sodium chloride
How to name multivalent compounds
use roman numerals for the amount of energy in the metal
FeO - iron (ll) oxide
How to name molecular compounds
use prefix in front of the element name
Diatomic compounds
two of the same atom bonded
H2 - hydrogen gas
Endothermic
Cold
instant ice pack
Exothermic
Hot
Fire
____+____ —> _________
Chemical equation
reactant —-> products
3 types of chemical reactions
Combustion
Corrosion
Cellular Respiration
Combustion
Exothermic
sparks
Corrosion
Exothermic
rust
Cellular Respiration
Endothermic
living organisms take in energy
Law of conservation
no matter is destroyed or gained in a chemical reaction
4 things that affect rate of a chemical reaction
Catalyst
Change temp
change concentration
change surface area
Catalyst
substance used to speed up reaction but is still apart of the product
Enzyme
A catalyst that living things produce
saliva
Change Concentration
Add more reactant to speed up
Change Temp
Increased temp - faster
decreased temp - slower
Change surface area
smaller the particle the more room for a reaction to occur
