Answers: 1
Chemistry, 21.06.2019 17:30
Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?
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Chemistry, 22.06.2019 15:00
Answer explain why it is not possible to deduce a complete order of reactivity.
Answers: 3
Chemistry, 22.06.2019 17:50
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
Chemistry, 23.06.2019 00:30
The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils
Answers: 2
Who asks scientific questions? a. someone trying to determine right from wrongb. only someone with a...
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