The aluminum is the independant factor, which means that it is the factor that is tested. it will change from Trial to Trial to try to reap different results.
Explanation:
The gas planets are Jupiter, Saturn, Uranus and Neptune.
Answer:
Because electronegativity of Oxygen is higher than electronegativity of Carbon.
Explanation:
The electrons in a bond between carbon and oxygen, C-O, closer to the oxygen atom than the carbon atom because electronegativity of Oxygen is higher than electronegativity of Carbon.
A. A design is remodeled after analysis and tested again.
The correct option is C. A calorimeter is an isolated system. In isolated systems there is no exchange whatsoever with the surrounding. In an isolated system, an endothermic reaction results in a decrease in the temperature of the system. This is in contrast to the effect of an endothermic reaction in an open system. The heat of reaction remains a positive quantity.