Examlex
What is the coefficient of H2O when the following equation is properly balanced with the smallest set of whole numbers?
___ Na + ___ H2O ___ NaOH + ___ H2
Active Role
The act of taking initiative, participating directly, and being engaged in activities or decisions.
Piaget
A Swiss psychologist known for his pioneering work in child development and cognitive theory.
Cause And Effect
A relationship where one event (the cause) leads to the occurrence of another event (the effect).
Preoperational Stage
A stage in Jean Piaget's theory of cognitive development where children from ages 2 to 7 learn through pretend play but struggle with logic and taking the point of view of other people.
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