Chemistry for Life
The study of matter and the changes it undergoes.
What is Chemistry
A change in state or shape that does not alter the identity of the material.
What is a Physical Change?
An act of comparing an unknown quantity to a standard unit. Must include a unit and number
What is a Measurement?
If I take away electrons from an atom, then I have formed
What is Cations
Formulated the concept of Triads
Johann Dobereiner
Takes up space and has Mass.
What is Matter?
The number of Iron, Oxygen, and Hydrogen atoms in 4 Fe2OH3
What is Fe=8 O=4 H=12
Equation for Density
What is D=m/v
States that at most each orbital can only contain two electrons and that electrons want to be single in an orbital if they can
What is Hunds Rule
Known for the discovery of neutrons
Chadwick
3 Three things Naturalist and Creationist have in common
What is Both are biased, both are worldviews and both require Faith.
2 Types of pure substances 2 Types of mixtures
What is Element and Compound
Homogeneous and Heterogeneous
A set of data are not close to each other, but the average of the data is very close to the actual value.
What is Accurate?
The horizontal rows on a periodic table.The vertical columns on a periodic table.
What is Period (horizontal), and group/family(vertical)
Found that atoms have a dense positive charge, alpha Particle experiment, and discovered that atoms are mostly empty space.
What is Ernest Rutherford
3 Basic concepts of a Christian Worldview
What is Creation, Fall, Redemption.
3 Laws of Thermodynamics
What is: 1st Energy can not be created or destroyed.
2nd All natural processes tend to wind down (entropy)
3rd It is impossible to reach absolute zero
The 3 main Base Units
What is Meter, Liter, Gram,
1s22s22p63s23p64s23d104p4
What is (Se) Selenium
The 7 Diatomic Elements
What is H2, N2, O2, F2, Cl2, Br2, I2
Experimental Variables w/description
What is control group- left alone
Experimental group- changed/experimented on
Dependent variable- Responding you measure this variable-
Independent Variable- Manipulated what your changing.
6 Phase changes and examples of each
What is Condensation- gas--> liquid on mirror after shower Vaporization- liquid ---> gas mist above a lake Freezing- liquid --> solid ice Melting- solid--> liquid Ice cream melting. Sublimation- solid-->gas dry ice Deposition- gas-->solid snowflake frost on leaves
The number of Sig Figs. in each:
a. 9.370 kg c. 705.06mL
b. 63000 g d. 0.0001s
What is....
a.4 sig fig c.5 sig fig
b. 2 sig fig d.1 sig fig
Name and describe 4 Periodic Trends
What is 1.Atomic radius decrease left-->right increase top--> bottom
Ionization energy, Electron Affinity, Electronegativity Increase left--->right Decrease top-->bottom
Name 2 things JJ Thompson did and How did Mosley arrange the elements ?
What is Discovered the electron,, and the cathode ray experiment.
Arranged elements by atomic number