Answer:
Explanation:
Tommy's misconception in the problem below, is that his expression of the shaded area is the shaded area / non-shaded area, when the fraction for the shaded area should be the shaded area / total area
Answer:
1) B. The change in energy in a system during an exothermir reaction
2) B. In the air, only the oxygen is part of the system
3) B. The energy found in the reactants....
4) D. This is an endothermic reaction because the system took energy from the surroundings.
5) B. Energy is released by the formation of chemical bonds
Explanation:
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Okay so Nancy wrote hers in expanded form is a method of representing a number through an addition statement by totaling the values of its digits.
it is a disease, commonly found in young children.
