Chapter 13 & 14 Flashcards
What value relates to the # of moles of solute per mass of solvent?
Molality
What substance is composed of 2 or more elements bonded together?
Compound
When atoms with different electronegativities bond, what type of bond is formed between the atoms?
Polar
General term for a physical combination of pure substances.
Mixture
Chemical name with a compound SCL4
Sulphur tetra chloride
Only metal that is a liquid at room temperature
Mercury
What idea states that no 2 electrons in an atom can have the same set of 4 quantum numbers?
Poly exclusion principle
What type of nuclear decay occurs when a non stable atom ejects a clump of 2 protons and 2 neutrons?
Alpha decay
Type of radio active decay releases energy without changing the number of protons and neutrons.
Gamma decay
What is one way diffusion through a semipermeable membrane.
Osmosis
What is the strongest intermolecular force?
Hydrogen bond
Prefexes used when naming fluoride in a covalent molecule which would be SEF6.
Hexa
What is an atom that has a positive electric charge because of loosing electrons
Cation
What substances are composed of a single type of atom?
Element
C =
Carbon
Na
Sodium
Ag
Silver
Au
Gold
O
Oxygen
K
Potassium
What unit refers to 6.022.10 to the 23rd power particles of a substance
Mole
What terms refers to the sum of the atom’s atomic mass of all atoms in a molecule
Molecular mass
What are the electrons located in the outer most shell of any atom called.
Valence electron
Type of intermolecular force is present between all polar molecules but not between non polar molecules
Dipole-dipole force
By physical properties elements are divided into 3 groups
metals, semi metals, fluorine = non metals
The chemical name for covalent compound that contains one uranium atom and 6 fluorine atom
una hexa fluoride
A homogenous mixture that contains and consists of a solute dissolved in a solvent is,
A solution
The process of mixing molecules of one substance with another substance by random molecular motion
Difusion
The organized study of the composition and interaction of matter
Chemistry
The mixture containing suspended clumps of particles called
colloids
Term that refers to the time required for one half of radioactive sample to decay into a new substance
Half life
T/F Mod: In a solution the substance that is dissolved is the SOLVENT
FALSE - SOLUTE
T/F Mod: The process of combining 2 nuclei to form a heavier nucleus is FISSION
FALSE - FUSION
T/F Mod: If a molecule of a mixture are not completely mixed together the substance is a HOMOGENIUS mixture
FALSE - HETEROGENIUS
T/F Mod: Magnesium is a alkaline earth metal and Chlorine is a halogen. The substance magnesium and chlorine most likely have IONIC bonding
TRUE
T/F Mod: Protons and neutrons are found in the NUCLEUS
TRUE
T/F Mod: The law stating that elements show regular and repeating properties when arranged by increasing atomic numbers is the PERIODIC LAW
TRUE
