Tijuan mixed a solid and a liquid together in a beaker. He determined that a chemical change occurred. If his conclusion is correct, which substances could he have been observing and why? A) ice mixed into warm oil, because the change of state that occurred when the ice melted cannot be reversed. B) baking soda mixed into vinegar, because the production of bubbles indicates that a new substance formed. C) sugar mixed into hot water, because the disappearance of solid indicates that the chemical identity of the sugar changed. D) sand mixed into water, because when sand was added the mass of the beaker increased.
Answers: 3
Chemistry, 21.06.2019 17:30
Aspirin has a density of 1.40 g/cm3 what is the volume in cubic centimeters of a tablet weighing 320 mg ?
Answers: 1
Chemistry, 22.06.2019 12:30
Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
Answers: 2
Chemistry, 22.06.2019 19:30
Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons
Answers: 2
Tijuan mixed a solid and a liquid together in a beaker. He determined that a chemical change occurre...
History, 03.08.2019 19:30
History, 03.08.2019 19:30
Mathematics, 03.08.2019 19:30
English, 03.08.2019 19:30
Mathematics, 03.08.2019 19:30
Mathematics, 03.08.2019 19:30