Search for Life
What makes water so important for life?
Extreme versatility in being able to sustain life and being habitable for life itself.
Chemical formula of water?
H2O
What are the 4 VERY COMMON atoms seen many times in multiple molecules?
Hydrogen, Oxygen, Nitrogen, and Carbon.
The atomic radius (Increases / Decreases) as we go from left to right across the periodic table.
Decreases
What is the name for a “negative ion”?
Anion
What is one of the three things scientists look for when finding life on a different planet?
Liquid Water / Right atmospheric gases / Global Signs of life
The ability to dissolve a solute in a solvent and create a solution is called ____.
Solubility
What is a Subscript?
A small number written below an atom in a formula of a molecule that shows how many of that atom there is in that molecule.
What is the other way of saying "Dihydrogen Monoxide"?
Water
T/F There is NO prefixes for Ionic substances.
True
What is the Goldilocks Zone?
The radius on a planet's orbit that has the correct conditions keep water a liquid and sustain life.
What is Specific Heat?
The quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree.
Phospholipids are surrounded by water. The water contains charged metal ions. The phospholipids connect to each other to form _____.
Cell membranes
Metals easily conduct electricity due to...?
Having a weak hold on electrons that can freely move.
Compounds formed by ions must be ___.
Neutral
What is Spectroscopy?
The study of the absorption and emission of light and other radiation by matter.
What is the difference between Adhesion & Cohesion?
Adhesion is water sticking onto a different substance, and Cohesion is the sticking of two of the same substance.
How many Bonds does an atom of Nitrogen have?
3 Bonds
An Ionic Bond is the attraction between a ___ and a ___ atom.
Metal, nonmetal.
What ionic charge does Aluminum have?
+3
How is Spectroscopy used when finding life on planets from far away galaxies?
Determining stardust material from blocked or filtered colors of infrared light from the stars (that are forming into planets) itself
How does static electricity work?
When there's an imbalance between positive and negative charges in an object, and another object comes in contact which the first. A shock (or discharge) happens, and both objects become neutral.
How many Hydrogen atoms does a molecule of glucose have?
12 Hydrogen atoms
What is the prefix used for an atom when there's 7 of said atom?
Hepta-
How does Positive & Negative ions form?
Having 2 atoms with very different electronegativity. The nonmetal will take 1 or more electrons from the metal atom.