Oil is a powerful source of energy used for cars, machines, and many other purposes. while studying sources of energy that could replace the use of oil, a student thinks about solar power, wind power, nuclear power, and electric batteries. the students asks,"which type of source will waste the least energy and provide the most energy in all situations? "

which best describes why a scientist would ask a different question than this one? a. the question asks about subjective personal preferences regarding energy.

b. the question focuses on the objective measurements of amounts of energy.

c. the question has too wide of a focus, as though all situations can be studied at once.

d. the question is focused on the future and finding new answers about changing needs.

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent

Which substance has non polar covalent bonds