Matter & Water
when a liquid turns into a gas
What is Vaporization or Evaporation
the compactness of matter (or mass/volume)
What is density
The whole number on the periodic table (for Oxygen it is 8)
What is the atomic number
an atom with a positive charge
What is a cation
When the system releases heat energy
What is exothermic
anything that has mass and takes up space
What is Matter
when water is transported from the atmosphere to the Earth's surface
What is precipitation
Who is Ernest Rutherford
electrons in the outermost energy level of the atom (farthest away from the nucleus)
What are valence electrons
The chemicals existing at the end of a reaction
What are the products
when water molecules stick together
What is cohesion
a rock formed by melting
What is an igneous rock
The principle that galaxies are moving away from each other
What is red shift, universal expansion or Hubble's Law
What are covalent compounds
A reaction that has only 1 product
What is a synthesis reaction?
a change where a new substance is formed
What is a chemical change
the process by which water removes loose rock and dirt away from land
What is erosion
the least reactive family on the periodic table
What is the Noble Gas Family
A bond where electrons are not shared equally
What is a polar covalent bond
What is the product of this reaction?
Na + Cl2 -->
NaCl
something that is made of a solvent and a solute
What is a solution
when water gets into cracks, freezes, and causes the rock to split
What is frost wedging
atoms of the same element with a different number of neutrons
What is an isotope?
the name of KCl
What is potassium chloride
What is the balanced version of the following equation:
Na + Cl2 --> NaCl
2Na + Cl2 --> 2NaCl