Bauxite Is an Ore That Contains the Element Aluminum

question 114

Multiple Choice

Bauxite is an ore that contains the element aluminum.If you obtained 108 grams of aluminum from an ore sample that initially weighed 204 grams,what is the mass percent of aluminum in this bauxite ore?

• A)52.9
• B)15.6
• C)0.53
• D)47.1
• E)none of the above

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Definitions:

Epigenetics

The study of changes in organisms caused by modification of gene expression rather than alteration of the genetic code itself.

Neurogenesis

The process of generating new neurons in the brain, which continues to occur in certain regions throughout life.

Neural Pruning

The process of eliminating unused neurons and synaptic connections in the brain to enhance the efficiency of neuronal transmissions.

Plasticity

The brain's ability to change and adapt as a result of experience or injury.