Answer: Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged). If an atom gains or loses one or more electrons, it becomes an ion.
10.7 or round it up to 11
Because of friction
, NOT all potential energy is converted to kinetic energy. (B)
Some of the object's potential energy is converted to heat and lost.
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Answer:
B
Explanation:
Technically none of them are completely correct, however the Professor likely just wants you to recognize that endothermic means absorbing heat which therefore means that the product should be hotter than than the reactants.
