Water is made of two hydrogen atoms and one oxygen atom bonded together. julia is describing how water undergoes a physical change when it boils. she says that the particles shift to be farther apart and that the oxygen and hydrogen separate. she also says that the total mass of the steam is the same as the initial water, and that heat energy was required to cause the change. she finishes her description by saying that the steam can be turned back into water if it is cooled. which is the mistake in her description? a)the total mass remains the same in physical changes. b)the arrangement of particles may change in physical changes. c)atoms remain bonded to each other in physical changes. d)energy changes may occur in physical changesthe answer is c
Answers: 2
Physics, 21.06.2019 23:20, nathalyviruete
Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons
Answers: 1
Physics, 22.06.2019 12:10, JN02
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.
Answers: 1
Physics, 22.06.2019 14:30, zuleromanos
70 give a real life example showing how sensory neurons work with the motor neurons
Answers: 2
Water is made of two hydrogen atoms and one oxygen atom bonded together. julia is describing how wat...
Mathematics, 17.02.2021 22:40
English, 17.02.2021 22:40
Biology, 17.02.2021 22:40
English, 17.02.2021 22:40