This two-part chemical formula is the most common compound on Earth, and it's essential for all known forms of life.
what is H2O
This element, represented by the symbol "H", is the lightest and most abundant element in the universe
What is hydrogen?
How many atoms are in one molecule of water (H₂O)?
what is two hydrogen atoms (H) and one oxygen atom (O)
This element, known for its ability to conduct electricity and be stretched into wires, has the symbol "Cu".
What is copper?
This is the chemical formula for ordinary table salt
What is NaCl?
This group of highly reactive nonmetals, including fluorine and chlorine, is known for forming salts.
What are the halogens?
Used by plants for photosynthesis, this chemical has a formula that combines one atom of carbon with two atoms of oxygen
What is carbon dioxide?
Each horizontal row on the periodic table is known by this term.
What is a period?
This common household substance, used in baking and as an odor absorbent, has the chemical formula.
baking soda?