Answer:
It is most likely C
Explanation:
People get sick and maybe the twin/sibling has a medical condition that may interrupt the experiment.
The large number of areas covered by the chemical energetics can be explained by the different forms in which chemical energy can be released: heat and combustion work, electrical energy in electrochemistry, radiant energy in chemiluminescent systems.
The chemical energy provided by a reaction reflects the energy balance associated with the electronic modifications suffered by the species involved.
From an energy point of view, a chemical reaction between molecules can be schematized in two stages. The first requires a supply of energy and corresponds to the rupture of the bonds of the reactant molecules with release of the atoms which constitute them.
The second releases energy and concerns the creation, by recombination of these atoms, of new bonds entering the structure of the reaction molecules.
As a general rule, the energy released in the second stage is greater than the first. We are talking about exothermic reaction. The difference between these two energies (reaction enthalpy) measures the amount of chemical energy transferred to the external environment.
It is conceivable that this quantity translates, not only the number, but also the strength of the connections involved.
In an experiment, that subjected participants to increasing isolation in a computerized ball-tossing game, fMRI scans showed activity in the cingulate cortex, a region of the brain that is active during EMOTIONAL PAIN.
Cingulate cortex is the limbic lobe involved in emotion formation, memory, learning, problem solving and self control.
Answer:11,508 liters per week
Explanation: Since the turner family uses 548 liters per day and the hill family uses 3 times that much you would multiple 548 by 3 giving you 1,644 liters per day. 1,644 liters is the amount of water they use in one day so you would have to multiply the amount of water used in one day with the total days of the week. Therefore 1,644x7= 11,508 liters per week.
