1 2 3 u can count on me! Flashcards
Exploding Dynamite
Chemical
Water dissovle
Physical or chemical
Wine turned into vinegar
C
Iron rusting
C
bending clay
p
condensing water
p
cutting a paper
p
oxidation of aluminum
c
combining sodium and chlorine
C
Elements
the most basic B## Like payton! only periodic table shit
Matter
Anything that takes up space. Ex the trees Ellie payton za blackie
Chemistry
The study of the composition of matter and the changes that it undergoes.
-chemistry answers many questions you may have about the world
-Chemistry affects mostly all aspects of life because all living and nonliving things are made up of matter
-Chemistry is also known as the central science because it mixes with all other science
FUN FACT: Everything is made up of matter therefore everything contains Chemicals
Why is chemistry the central science
Overlaps with all other sciences
Organic Chemistry
The study of all carbon based lifeforms. Ex: payton
Inorganic
THe study of chemicals that do not contain any carbon
Biochemistry
The study that takes place in living organisms
Analytical Chemistry
The study of chemistry that focuses on the composition of matter
Physical Chemistry
The study of the area that deals with the mechanisms, rate, energy transfer which occurs when matter undergoes a change.
Theoretical Chemistry
explanation of chemical phenomena by methods of theoretical physics
Pure Chemistry
Pursuit of chemical knowledge for its own sake
Applied Chemistry
Research that is directed towards a practical goal
What do elements contain
Atoms and each atom contains a nucleus and electon(S)
Kinetic Theory
The particles are always in constant motion
Extensive properties
A property that depends on the amount of matter in a sample
-Volume
-Mass
Intensive Properties
a property of matter that depends only on the type of matter in a sample and not on the amount
- Color
-Temp
-Solubility
Chemical Changes
Is a change that produces matter with a different composition that the original matter.
-Burning of paper and log of wood.
-Digestion of food.
-Boiling an egg.
-Chemical battery usage.
-Electroplating a metal.
-Baking a cake.
-Milk going sour.
-Various metabolic reactions that take place in the cells.
Physical Change
Properties of a material change, but the composition of the material does not change.
-boiling water,
-breaking a glass,
-melting an ice cube,
-freezing water,
-mixing sand and water,
-crumpling of paper, and
-melting a sugar cube
Mixtures: Hetero and Homo???
-A mixture is a physical blend of two or more components
-Heterogeneous is a mixture where u can see the different components
-Homogeneous is a mixture where u can’t see the different components. #UNIFORM
Compound
A substance that contains two or more elements chemically combined in a fixed proportion. Compounds can be broken down into simpler parts. elements cant
Density
Mass/Volume
How to distinguish between substance and mixture
if there is more than 1 version such as milk and cream. Cream. Cheese and other stuff. so therefore mikk is a mixture
Physical Properties
density, color, hardness, melting and boiling points, and electrical conductivity
a characteristic of a substance that can be observed or measured without changing the identity of the substance
Chemical Properties
the characteristic ability of a substance to react to form new substances. flammability, toxicity, acidity, reactivity (many types), and heat of combustion.
hypothesis
A testable statement used for making predictions and carrying out further experiments is a
Scientific method order
observation, proposing and testing hypotheses, and developing theories
Scientific Law
A concise statement that summarizes the results of many observations and experiments.
Phase
Used to describe any part of a sample with uniform composition and properties.
Filtration
The process that separates a solid from a liquid in a hetero mixture
Distillation
A liquid is boiled to produce a vapor that is then condensed into a liquid.
Periodic Table rows vs columns
Rows are the periods
Columns are groups and have similar attributes
conservation of mass
in a chemical reaction mass is neither created nor destroyed
What is the zigzag
The elements to the left of the staircase are metals (and metalloids) while the ones on the right are the non-metals
Volume
the space that an object takes up
Reactant and product
reactant is at the start product as at the end
