When a 21. 5 ml sample of a 0. 454 m aqueous hydrocyanic acid solution is titrated with a 0. 339 m aqueous sodium hydroxide solution,.

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.