Biology
TRUE
What is the smallest unit of matter that retains its physical and chemical properties of its respective element?
The atom
What element is represented by the letter "C"?
Carbon
What is the chemical formula for water?
H2O
What is a hydrocarbon?
A molecule made up of only carbon and hydrogen
A form of logical thinking that uses related observations to arrive at a general conclusion.
Inductive Reasoning
Proton
Neutron
Electron
195.084
What two key properties of water make it critical for life?
What provides the energy released to generate heat when hydrocarbons (i.e. methane) are burned?
List 1 of the 7 key properties of life.
1. Order and organization
2. Sensitivity or response to stimuli
3. Reproduction
4. Growth and development
5. Homeostasis
6. Energy processing
7. Adapt and Evolve
What subatomic particle dictates what element an atom is?
What element has 98 protons?
Californium
What term is used to define water's ability to stick to itself? Give a biological example where this is relevant.
Cohesion
Surface tension, capillary action
What is another name for hydrocarbon rings?
Aromatic Hydrocarbons
What biological level of organization comes after cells?
Tissues
Define the octet rule...
The outermost electron shell (valence shell) wants to hold 8 electrons, not including the first electron shell.
How many electrons would Chloride have if it was an ion with a charge of (-1)?
18
What type of bonds hold the water molecule together? Do they have a special characteristic?
Covalent bonds. The bonds are polar
Molecules that have the same chemical formula but differ in placement/arrangement of atoms or types of bonds between atoms are known as...
Isomers
Defined as unicellular organism with no membrane bound nucleus, believed to be the oldest living organisms on earth.
Archaea
Describe elemental isotopes....
an isotope is an element with a different number of neutrons than other forms of that element (ex. Carbon 12 vs Carbon 14)
How many neutrons does Argon have? (approximately)
approximately 22
Briefly describe how ice (solid water) is able to float on liquid water. Is this a common phenomenon?
When water becomes solid, it is less dense and the molecules are more spread apart, allowing it to float on the more dense liquid form of water.
This is not the common trend of molecules in their liquid and solid states of matter.
A type of isomer that is defined as a "mirror image"?
Enantiomer