It's 42 kHz which can be be achieved by either ultrasound or radiowaves or both but because you need pure water to split it at this frequency so it's kinda impractical-tho if you vibrate water at this frequency it makes standard electrolosys more efficient-several designs to do this exist in the literature. Best Answer.
QuÃ©bec is the largest province in Canada. Its territory represents 15.5 per cent of the surface area of Canada and totals more than 1.5 million km2. QuÃ©bec shares borders with Ontario, New Brunswick and Newfoundland. The province also neighbours on four American states: Maine, New Hampshire, Vermont and New York.
1 Quebec is the capital and Montreal the largest city.  also Quebec City or QuÃ©bec City The capital of Quebec, Canada, in the southern part of the province on the St. Lawrence River. Founded in 1608 by Samuel de Champlain, it served as capital of New France before becoming a provincial capital under the British.