Examlex
How many biosphere reserves have been established worldwide?
H2O
The chemical formula for water, a compound consisting of two hydrogen atoms bonded to one oxygen atom.
Balanced Equation
A chemical equation where the number of atoms for each element is equal on both the reactant and product sides, indicating mass conservation.
SiO2
The chemical formula for silicon dioxide, a naturally occurring oxide of silicon commonly found in quartz and many other minerals.
Balanced Equation
A chemical equation that has equal numbers of atoms for each element involved in the reaction on both reactant and product sides, adhering to the law of conservation of mass.
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