Biology, 07.07.2019 10:50 alphaaz23415
When salt is mixed with water and stirred, the salt will dissolve, forming a solution. when sand is mixed with water, the sand will not dissolve. why will salt form a solution with water but sand will not? a) salt is pulled apart into two ions by the polar water molecules, and sand is not. b) sand forms complex crystals which dissolve much more slowly than non-crystalline salt. c) salt consists of only 2 atoms and is small enough to dissolve, while sand is too large. d) sand is much harder than salt and so it will not form a solution with water.
Answers: 1
Biology, 22.06.2019 08:00, kajjumiaialome
Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen
Answers: 1
Biology, 22.06.2019 09:00, webbhlharryteach
Which of the following statements about protists are true? a. they are typically found in moist environments. b. they are all unicellular. c. they have a nucleus. d. they are all multicellular.
Answers: 1
When salt is mixed with water and stirred, the salt will dissolve, forming a solution. when sand is...
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