Examlex
A sample of potassium nitrate (49.0 g) is dissolved in 101 g of water at 100 °C, with precautions taken to avoid evaporation of any water. The solution is cooled to 30.0 °C and a small amount of precipitate is observed. This solution is .
Preoperational
A stage in Piaget's theory of cognitive development, typically from ages 2 to 7, where children are unable to understand concrete logic and are instead focused on manipulation of symbols and language.
Concrete Operational
A phase in Piaget's model of cognitive growth where kids develop the skill to reason logically regarding tangible occurrences.
Sensorimotor
Pertaining to the combined processes of sensory input and motor output, often in the context of development or reaction to environmental stimuli.
Preoperational
The second stage in Piaget's theory of cognitive development, occurring roughly between the ages of 2 and 7, characterized by symbolic thinking, egocentrism, and difficulty understanding conservation.
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