Examlex
An acid
Formal Operational Stage
The last of Jean Piaget's four stages of cognitive development, where abstract, logical thinking develops.
Concrete Operational Stage
A developmental phase in Piaget's theory of cognitive development, from approximately 7 to 11 years old, where children gain the ability to think logically about concrete events.
Sensorimotor Stage
The first of Jean Piaget's stages of cognitive development, where infants learn about the world through their sensory and motor interactions.
Preoperational Stage
A stage of cognitive development, according to Piaget, where children aged 2 to 7 years engage in symbolic play and struggle with taking the perspective of others.
Q14: Calculate the mass in grams of 8.35
Q42: According to valence bond theory, what would
Q47: The compound, NaH<sub>2</sub>PO<sub>4</sub>, is present in many
Q50: Which of the following is a strong
Q53: Calculate the pressure of a helium sample
Q54: The melting points of metals are only
Q56: According to the kinetic theory of gases,
Q72: Barium fluoride is used in embalming and
Q77: Which one of the following pairs of
Q111: The oxidation numbers of P, S, and