Definitions
Chemical Formulas
History of Chemistry
Chemical or physical change?
100

Cation

What is "a positively charged ion"?

100

Water's chemical formula

What is H20?

100

The man who created the periodic table

What is "Dmitri Mendeleev"?

100

Crinkling up paper into a ball

What is "a physical change"?

200

Every element in a group on the periodic table has this in common

What is "the same number of valence electrons"?

200

Sodium Chloride's chemical formula

What is NaCl?

200

The year the periodic table was created

What is "1896"?
200

Buring wood

What is "a chemical change"?

300

The definition of a chemical formula

What is "a combination of symbols and numbers that represent the number and types of elements (atoms) present in a compound"?

300

Potassium Chloride's chemical formula

What is KCl?

300

The philosopher who claimed that it was possible to turn anything to another substance

What is "Aristotle"?

300

Rusting of iron

What is "a chemical change?"

400

Heat Fusion

What is "the amount of energy needed to melt or freeze a substance"?

400

Aluminum Chloride's chemical formula

What is AlCl3?

400

The Chinese chemist credited with turning mercury into silver

What is "Fang"?

400

A rotting banana

What is "a chemical change"?

500

The Egyptian word/the root for the word "chemistry"

What is "khemia"?

500

Sodium Phosphoride's Chemical Formula 

What is Na3P?

500

The Arabian chemist who claimed there were 7 elements

What is "Jābir ibn Hayyān"? or What is "Gerber"?

500
Food dye in water

What is "a physical change"?