Elements & Periodic Table
What is the symbol for Gold?
AU
What state of matter has a definite shape and volume?
Solid
What is produced when an acid reacts with a base?
Water and salt!
What is the pH of a neutral solution?
What is the charge of an electron?
Negative
This element is the most abundant in Earth's atmostphere.
Nitrogen
What happens to the particles of a substance when it heats up and changes from liquid to gas?
The particles move faster and spread out!
What is the name of the reaction when one substance breaks down into two or more simpler substances?
Decomposition reaction.
What does acid release when it dissolves in water?
Hydrogen ions.
How many protons are in a neutral atom of Carbon?
6
Name the element that has the chemical symbol "W"
Tungsten.
What is the difference between evaporation and boiling?
Evaporation occurs at the surfce of a liquid at any type of temperature, while boiling only occurs when the liquid is at it's boiling point.
In a combustion reaction what are the typical products?
Carbon Dioxide and water.
What is the pH range of a basic solution?
Greater than 7
What is an ion?
An ion is an atom that has gained or lost electrons and has a charge.
Which group on the periodic table contains the most reactive nonmetals?
Halogens
What is the term for energy to change a substance from solid to liquid?
Hear of Fusion
What is the law that states matter cannot be created or destroyed in a chemical reaction.
Law of conservation of Mass.
What does the term neutralization mean (in chemistry?)
when acid and a base reacts to form water and salt.
What type of bonde forms when electrons are shared between two atoms?
Covalent bond
What is the periodic trend for atomic radius as you move across a period?
It decreases.
How does the concept of plasma differ from the other states of matter?
Plasma is really highly ionized electricallt conductive state of matter found at very high temperatures!
What is the general equation for a neutralization reaction?
Acid + Base > Salt + Water.
what is an example of a weak acid commonly found in food?
Vinegar, which contains acetic acid!
What is the name of the bond formed when one atom gives an electron to another atom?
Ionic bond