Alloys
Steel is an alloy of iron with this element.
What is Carbon?
It is element #1, found in the upper left of the periodic table.
What is hydrogen?
It is what we call a combination of two or more pure substances, that is essentially constant in its composition and properties throughout.
What is a homogeneous mixture?
In 1808 he published his atomic theory, which tied together the concepts of atoms, element, compounds and reactions.
Who was John Dalton?
This alloy combines copper with tin, to make it much harder.
What is bronze?
What is boron?
This is the principle that matter cannot be created or destroyed by ordinary chemical or physical processes.
What is the Law of Conservation of Mass?
The "Laughing Philosopher", this man proposed that all matter was made of individual atoms -- 500 years before the birth of Jesus Christ!
Who was Democritus?
This shiny, golden alloy of copper with zinc is often used in fancy home furnishings, musical instruments and plumbing fixtures.
What is brass?
Carbon is this number on the Periodic Table.
What is six?
It is the term for when two or more atoms, of the same or various elements, are joined together by chemical bonds.
What is a molecule?
He solved the phlogiston confusion and stated the Law of Conservation of Mass, but was beheaded as an enemy of the people during the French Revolution.
Who was Antoine Lavoisier?
This alloy was very popular in the days of colonial America for making dishware. It is make from tin, with small amounts of copper, antimony and bismuth.
What is pewter?
It is element number 11 and has the symbol Na, for natrium (its original neo-Latin name).
What is sodium?
It is the term for atoms of different elements joined together by chemical bonds.
What is a compound?
He discovered oxygen, although he called it "dephlogisticated air", and found that it had positive effects on flames, mice and even himself!
Who was Joseph Priestly?
Amalgam, which used to be used for dental fillings, is an alloy of silver, tin or coppers with this very hazardous liquid metal.
What is mercury?
The symbol for this element is Ag, because it was originally called Argentum in Latin.
What is silver?
This "law" states that a given compound is always formed by the same ratio of it component elements (e.g. it always takes 2 grams of hydrogen per 16 grams of oxygen to make water).
What is the Law of Definite Proportions?
Who was Humphrey Davy?