Determine the Heat Given Off to the Surroundings When 9 $\rarr$

question 66

Multiple Choice

Determine the heat given off to the surroundings when 9.0 g of aluminum reacts according to the equation 2Al + Fe₂O₃ $\rarr$ Al₂O₃ + 2Fe, $\Delta$ H ^$\circ$ _rxn= -849 kJ/mol.

• A) 1.4 * 10² kJ
• B) 2.8 * 10² kJ
• C) 5.6 * 10² kJ
• D) 2.5 * 10³ kJ
• E) 7.6 * 10³ kJ

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Definitions:

Blood Flow

The continuous circulation of blood through the heart and blood vessels, delivering nutrients and oxygen to the body.

Coronary Arteries

Blood vessels that supply blood and oxygen to the heart muscle, crucial for the heart's function and overall health.

Physical Activity

Any bodily movement produced by skeletal muscles that require energy expenditure, such as exercising or sports.

After-School

Pertaining to the time following the end of the school day; often refers to programs or activities that engage students outside of regular school hours.