1st quiz Flashcards
Anything that has mass and occupies space
Matter
Measurement of the amount of matter
Mass
made up of atoms
Mass
Atoms is building blocks of
matter
Smallest amount/unit of life
Atom
What is elements
simplest form of atom
Does elements can be breakdown into molecules?
Yes
What are the states of matter?
SOLID, LIQUID, GAS, & PLASMA
H2O molecule are enclose together
Solid
has a fixed volume and shape and cannot change
Solid
h2o molecule are still enclose but can move around into some extent
Liquid
Definite volume, doesn’t have fixed shape
Liquid
takes the shape of container or copy the shape
Liquid
Doesn’t have definite volume and fixed shape
Gas
molecule that can move freely
Gas
What are the 5 transitions of matter?
Condensation
Freezing
Melting point
Sublimation
Evaporation
Gas- liquid
Condensation
Liquid- solid
Freezing
Solid- liquid
Melting
liquid- gas
Evaporation
solid-gas
sublimation
Attributes of matter that is independent of its chemical composition
Physical Properties
Does physical Propeties constant and can change?
Yes
What composes physical properties? MHEDBC
Melting point (0 degree celcius)
Hardness
Electrical conductivity
Density
Boiling point (100 degress celcius)
Color
What composes chemical properties? FRAT
Flamibility
Reactivity
Acidity
Toxicity
Tendency of matter to combine chemically with other substance.
REACTIVITY
Example of reactivity
- KI + iodine crystal = Povidone Iodide
- Fe + O = Rust
Rust doesn’t cause tetanus, what bacteria cause it?
Clostridium tetani
Tendency of matter to burn
Flamibility
Refer to a combination of chemical element that may cause harm to the organism.
Toxicity
measure the acidity and alkalinity
pH
It is alkaline / basic if
8-14
It is acid if
1- 6.9
Neutral ph is
7
What is INTENSIVE PROPERTIES?
-constant
- you can’t change
- do not depend on the matter that is present
INTENSIVE PROPERTIES involves: BDMFSC
Boiling Point
Density
Melting point
freezing point
specific gravity
conductivity
Example of intensive properties
water= density is 1g/mL
What is EXTENSIVE PROPERTIES?
-depends on the amount of matter
-not constant
- it will/ can change
EXTENSIVE PROPERTIES involves: WEV
Volume
Weight
Energy
Physical Changes is
changes in physical properties such as size, shape, and density
Changes in matter without undergoing a change in composition of the substance
Physical Changes
Example of physical changes
- paper-shred= still paper
- melt + water = still water
- wood-cut= still wood
- Blowing Balloon= still balloon
Chemical change is
change is irreversible
Changes in matter undergoes change in its composition and or its structure
Chemical Change
What change where there is new substance are formed.
Chemical Change
Example of Chemical Changes
- wine- go through fermentation
- rusting iron
- curdling milk
- burning of paper
What are the 2 classification of matter?
Mixture and Pure substance
Definition of pure substance
- can’t separate
- compose of compound + element
- it’s constant and have definite composition
What is compound?
combination of 2 or more element in a FIXED PROPORTION
What is fixed proportion?
has fixed amount
Does sulfuric acid can be separated?
Yes, through DECOMPOSITION PROCESS
T/F: Element cannot separate in simpler substance.
True
What process can make to separate an element like H2O?
ELECTROLYSIS
Definition of Mixture?
consist of 2 or more different elements /compounds
Can separate easily or into its components by physical means
Mixture
Proportion of components may vary
Mixture
Mixture can be divided into 2 : __________
- Homogenous
- Heterogenous
It is uniform composition throughout mixture
Homogenous
Components can easily be seen
Heterogenous
Example of Homogenous
- powdered juice + water
- vinegar ( acetic acid + h2O)
Example of heterogenous
- rice + water
- oil + water
Mixture can be separated through:
Rice + water = through DECANTATION
Oil + water = through filtration
Suspension= filtration
What are the methods of separation? (3)
Distillation
Evaporation
Filtration
Process of separating the component of a liquid mixture through selective evaporation and condensation
Distillation
conversion of liquid to gas
Evaporation
process which solid particles in a liquid or gaseous fluid removed by the use of filter medium (mesh) that permits fluid to pass through but retains the solid particles.
Filtration
