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false all solutions are mixtures but not all mixtures are solutions
False. As an example wet sand is a mixture of water and sand, but it is not a solution as the two substances remain as distinct phases.
false
true
tRUE
Yes. If all the question's parts are true, then the answer is true. If all the question's parts are false, then the answer is false. If one of the question's parts is false and the rest true, then the answer is false. Logically, this is illustrated below using: A = True, B = True, C = True, D = False, E = False, F = False A and B and C = True D and E and F = False A and B and D = False If you add NOT, it's a bit more complicated. A and NOT(D) = True and True = True NOT(D) and D = True and False = False NOT(A) and NOT(B) = False and False = False Using OR adds another layer of complexity. A OR NOT(E) = True OR True = True NOT(D) OR D = True OR False = False NOT(A) OR NOT(B) = False OR False = False Logic is easy once you understand the rules.
True. All squares are rectangles, but not all rectangles are squares.
true
It is true.
Dictionary meaning's are all true they are not false.
False: solid solutions exist.
True