Q: In chemistry, pH (/piet/) is a logarithmic scale used to specify the acidity or basicity of an aqueous solution. It is approximately the negative of the base 10 logarithm of the molar concentration, measured in units of moles per liter, of hydrogen ions. More precisely it is the negative of the base 10 logarithm of the activity of the hydrogen ion. Solutions with a pH less than 7 are acidic and solutions with a pH greater than 7 are basic. Pure water is neutral, at pH 7 (25 C), being neither an acid nor a base. Contrary to popular belief, the pH value can be less than 0 or greater than 14 for very strong acids and bases respectively.
Can we conclude that is a solution with a ph of 12 acidic?
OPTIONS:
- no
- yes
A: no

Q: Linseed oil, also known as flaxseed oil or flax oil, is a colourless to yellowish oil obtained from the dried, ripened seeds of the flax plant (Linum usitatissimum). The oil is obtained by pressing, sometimes followed by solvent extraction. Linseed oil is a drying oil, meaning it can polymerize into a solid form. Due to its polymer-forming properties, linseed oil can be used on its own or blended with combinations of other oils, resins or solvents as an impregnator, drying oil finish or varnish in wood finishing, as a pigment binder in oil paints, as a plasticizer and hardener in putty, and in the manufacture of linoleum. Linseed oil use has declined over the past several decades with increased availability of synthetic alkyd resins--which function similarly but resist yellowing.
Can we conclude that is flax oil the same as linseed oil?
OPTIONS:
- no
- yes
A: yes

Q: Crane fly is a common name referring to any member of the insect family Tipulidae, of the order Diptera, true flies in the superfamily Tipuloidea. Cylindrotominae, Limoniinae, and Pediciinae have been ranked as subfamilies of Tipulidae by most authors, though occasionally elevated to family rank. In the most recent classifications, only Pediciidae is now ranked as a separate family, due to considerations of paraphyly. In colloquial speech, crane flies are sometimes known as mosquito hawks or daddy longlegs, a term also used to describe opiliones or the family Pholcidae, both of which are arachnids. The larvae of crane flies are known commonly as leatherjackets.
Can we conclude that is there such a thing as a mosquito hawk?
OPTIONS:
- no
- yes
A: yes

Q: This is a list of train stations served by Metro-North Railroad. This includes stations shared with NJTransit, but only those within New York State. Stations are listed in alphabetical order. Stations along the Pascack Valley Line from Hoboken, NJ to Montvale, NJ and along the Main Line and Bergen County Line from Hoboken, NJ to Mahwah, NJ are operated solely by New Jersey Transit.
Can we conclude that does the metro north go to new jersey?
OPTIONS:
- no
- yes
A:
no