General
The study of the elemental building blocks of life; their properties and how they interact
What is 'chemistry'?
What is an 'acid'?
The center of an atom
What is the 'nucleus'?
The chemical equation for water
What is 'H2O'?
An atom with an electrical charge (either positive or negative)
What is an 'ion'?
The purest form of a substance, in which all atoms are the same
What is an 'element'?
How we measure acidity or alkalinity (from 0 to 14)
What is the 'pH scale'?
What are 'protons and neutrons'?
The symbol for the most abundant (and lightest) element in the universe
What is 'H'?
The product of two or more elements chemically reacting with one another
What is a 'compound'?
The chart devised by chemist Dmitri Mendeleev in the mid-1800s, to organize the known chemical elements
What is the 'periodic table'?
Substances ranging from above 7 to 14 on the pH scale (e.g., bleach); often used for cleaning
What is a 'base'?
The atomic particle responsible for how an atom interacts with other atoms; holds a negative charge
What is 'an electron'?
The number of hydrogen atoms in a molecule of rotten egg-smelling hydrogen sulfide (chemical formula is H2S)
What is 'two'?
The type of bond formed between a sodium (Na+) ion and a chloride (Cl-) ion in table salt
What is an 'ionic' bond?
The three phases of elements
What are 'solid, liquid, and gas'?
The pH of pure water
What is '7' or 'neutral pH'?
The number of protons in an atom of a particular element; used to sequentially organize the elements into rows (periods) and columns (groups)
What is 'atomic number'?
The chemical formula for table salt (hint: otherwise known as sodium chloride)
What is 'NaCl'?
A type of reaction that gives off heat (e.g., our steel wool in vinegar reaction)
What is an 'exothermic' reaction?
The number of naturally occurring elements
What is '92'?
The two common products formed when acids and bases react (otherwise known as a neutralization reaction)
What are 'salts and water'?
(For example, HCl reacting with NaOH to form NaCl and H2O)
In models, how the electrons are arranged around a nucleus (think of how we drew atoms)
What is an 'electron shell'?
The chemical symbol that all organic life is based upon, due to its ability to form bonds with 4 other elements at a time
Hint: it forms diamonds as well as charcoal
What is 'C'?
The type of chemical bond where the atoms 'share' the valence electrons
What is a 'covalent' bond?