Unit 1
What is scientific process?
A process of checking conclusions against nature. After observing something.
How does liquid change to gas?
Added energy breaks the bonds allowing for more motion for the particles.
What is a chemical bond?
A chemical bond is the physical phenomenon of chemical substances being held together by attraction of atoms to each other through sharing, as well as exchanging, of electrons -or electrostatic forces.
What is a balanced chemical equation?
A balanced chemical equation occurs when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side.
What is nuclear fusion?
A nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
What is the seven SI system units
the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd).
How does a solid become a liquid?
Added energy breaks the bonds allowing the particles to slide past one another.
What is an ionic bond?
Ionic bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
What is half-life?
The interval of time required for one-half of the atomic nuclei of a radioactive sample to decay.
What is nuclear fission?
A nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
what is a molecule?
A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
How does gas form into liquid
Removed energy, slower particle motion, and bonds are forming.
What is a covalent bond?
A type of chemical bond involving the sharing of electrons between atoms in a molecule.
What is a nuclear reaction?
A change in the identity or characteristics of an atomic nucleus that results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay.
What is a solute?
The minor component in a solution, dissolved in the solvent.