Types of chemistry
This is the study of all chemicals containing carbon
What is organic Chemistry?
This person transformed chemistry from a science of observation to the science of precise measurement it is today
Who is Antoine Lavoisier?
This process refers to making observations, proposing and testing a hypothesis and developing a theory.
What is the scientific method?
This variable is what is changed during an experiment
What is the independent (manipulated) variable?
how much “stuff” (or matter) something contains. Often measured in grams.
What is mass
The study of all chemicals that do not contain carbon
What is Inorganic Chemistry?
Famous for transforming science in to the practice of measurement it is today this Early French scientist from the 1700's is known for these TWO things
**Must get both for credit**
Designing a balance that could measure mass to the nearest 0.0005 grams.
Demonstrating that oxygen is required for something to burn
Observing that a flashlight does not work and assuming it is because the batteries are dead is an example of this
What is an example of a hypothesis?
This variable is a variable that is observed as we change the independent variable
What is a dependent variable?
how much space something takes up. The basketball has more volume than the golf ball.
What is volume?
The study of the PROCESS that takes place in living things
What is Biochemistry?
Retired practice popular before chemistry was an official study. This method of experimentation attempted to change elemental metals into others like lead into gold.
What is Alchemy?
For the results of an experiment to be accepted by a scientific community this is required
A claim is testable, repeatable and predictable by all who perform the experiment.
Though it is not always the case the independent variable can typically be found on this axis of a graph
X axis
depend on the amount (or size) of the sample.
Ex: mass, volume, heat
What are extensive properties
The study of mechanism rate and energy transfer....... specifically when matter undergoes a change
What is Physical chemistry
**Must name all reviewed**
developed processes for separating mixtures and purifying chemicals
Designed equipment still in use today like a mortar and pestle, beakers, tongs, flasks, ect...
Scientist will often create these when hypothesis are difficult or impossible to test otherwise.
What is a model?
These properties do not depend on how much of a sample there is
What is an intensive property?
ability of substances to undergo specific chemical changes. Can only be observed by actually doing that chemical reaction (or change).
What are chemical properties?
Study that analyzes the composition of matter
What is Analytical chemistry
Though this retired practice did contribute to chemistry as we know it today, it failed to accomplish these
Provide a logical set of explanations for changes in matter
Change one element into another
This higher regarded part of the scientific method, is a well tested explanation for a broad set of observations often explaining a process.
What is a theory?
These properties are largely dependent on the size of a sample
What is an extensive property?
does not change the identity of the substance during the change
What is a physical change?