On the ph scale, a 7 indicates
a base
an acid
neutrality

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )