Lab Safety/Measurements
Always wear when chemicals or equipment are present
What is safety googles
Everything around is
Matter
Full electron configuration for Carbon
What is 1s² 2s² 2p²
A negatively charged ion is called a(n) …
What is a cation
A bond between atoms that equally share electrons is a(n) _______ bond.
What is nonpolar covalent
metric system, the main units for volume, mass, temperature, length
Liter, gram, degrees celsius, meter
Has a definite volume but no definite shape
An isotope is
What is a form of a chemical element where the atoms have the same number of protons (same atomic number) but different numbers of neutrons, resulting in different atomic masses
Elements in a(n) ______ in the periodic table can be expected to have similar properties.
What is group
The greater the electronegativity difference between two bonded atoms, the greater the percentage of
What is the ionic character
Temperature is used in gas law calculations?
What is Kelvin
Rusting is an example of
What is a chemical reaction
Name this compound N2O4
What is Dinitrogen Tetroxide
Each horizontal row in the periodic table is called a…
What is a period
The pair of elements that forms a bond with the least ionic character is
a) Na and Cl. d) Br and Cl
b) H and Cl
c) O and Cl
What is letter d
All non-zero digits are significant?
What is called Sig Figs
Boyles law states
What is a fixed amount of gas at a constant temperature, pressure and volume are inversely related; meaning if you squeeze a gas (decrease volume), its pressure goes up, and if you let it expand (increase volume), its pressure goes down,
The electrons in an atom's outermost energy shell
What are valence electrons
To which group of the periodic table do lithium and potassium belong?
What is alkali metals
Name given to the pairs of valence electrons that do not participate in bonding in diatomic oxygen molecules?
What is lone pair
Graduated cylinder measures what?
What is volume
What is higher average kinetic energy and faster speeds.
Percent composition of C in CO2
What is 27.3%
Non-reactive (inert) gases that have eight valence electrons are the...
What is
Noble Gases
Valence electrons are transferred from the calcium atom to iodine in the formation of the compound calcium iodide?
What is 2