unit 1
deals with knowledge discovery with the main goal of understanding how and why the world works
what is pure science
a characteristic of a substance that can only be observed when it changes during a chemical reaction
what is chemical properties
the rows of the periodic table
what is periods
change that occurs when the identity of a chemical transforms into another substance or substances
what is a chemical reaction
substances that break apart to form an excess of hydrogen ions (H+) when dissolved in water
what is acids
deals with knowledge use and has the main goal of solving problems using information form pure science
what is applied science
determined by how much matter a substance contains
what is mass
a negatively charged ion
what is an anion
the substances formed by changes in a chemical reaction
what is a product
substances that break apart to form an excess of hydroxide ions (OH−) when dissolved in water
what is bases
anything that takes up space and has mass
what is matter
positively charged particle in an atom
what is a proton
shorthand way to depict valence electrons of atoms in an element where each dot represents a valence electron
what is an electron dot diagram
energy that depends on an object’s motion
what is kinetic energy
scale that measures acidity
what is the ph scale