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"I weigh ..." is "je pèse (... kilogrammes)" in French.
Astrounaut mass(kilogrammes)*1.62(metre/second^2)
... 8 ounces
387 pounds 27 stone 9 pounds or 175.54 kilogrammes
The Sun has a mass of 1.9891(plus loads more decimals)×1030 kg 1,989,881,989,610,210,000,000,000,000,000 kilogrammes
The specific gravity of liquid oxygen is 1.141 Therefore 1 cu.m. will weigh 1141 kilogrammes.
Up to 150 pounds. The Spanish Ibex male can reach up to 100 Kilogrammes (http://www.wildsideholidays.com/natural/Mammals/73-mammals-of-iberia/88-spanish-ibex) The nubian Ibex is quite small and weighs as low as 25 Kilogrammes (http://www.ultimateungulate.com/Artiodactyla/Capra_nubiana.html)
ist a tube containing Ca[OH]2 is weighed then pass carbon dioxide and again weigh out the difference shows the weight of the gas..
Vaquita's are not actually whales, they are a rare species of porpoise. Mature Vaquita's can measure 4-5 feet in length (that's approximately 1.5 metres) and weigh between 35-125 kilogrammes.
2.2
No, hydrogen, oxygen and carbon dioxide have very different weights.
A carbon Atom. Sodium Atoms Weigh Less Than Carbon Atoms And Also They Are Smaller Overall.