If 15.5g of aluminum are reacted with 46.7g of chlorine gas, then aluminum choloride, AlCl3, is formed.a) Which reactant is in excess?b) Calculate the number of grams in excess?c) Calculate the mass of aluminum chloride produced.Ok, so I figured out the equation is 2Al + 3Cl2 -gt; 2AlCl3I did the work but I got a negative answer for (a), but I don't think that's possible.
It is very hard to find the location of a proton and electron because they have to be cooled to a sub atomic levell that would make them hold position otherwise the light would refract and move themThey are not static otherwiseI am not sure about your model.
As long as the electrons are on the outside, and the protons and neutrons are somewhere in the nucleus, i don't think it matters
according to modern quantum theory, it's impossible to know where an electron is going to be at any given time because of heisenburg's uncertainty principlethe best we can do is to define a region, called an electron cloud, where the electron is located 90% of the timeif this is outside of what you'll be learning in your science class, you'll have to stick to the (outdated) Bohr model of the atom, where the electrons are confined to well-defined orbitsas for their placement along the circles, you might want to have them evenly spaced to minimize repulsive forces since all the electrons have like chargesthe positions of the neutrons do matter because the protons all have like charges, so they'd repel each other if they were all touchingtherefore, you need to put a neutron in between them to act like a buffer region.
No, it incredibly is long incorrectElectrons are no longer in orbit around the nucleus, they are interior probability clouds noted as orbitalsThe Rutherford kind did artwork for a while, yet is already out of dateit fairly is barely nevertheless commonly used as image for exhibiting that something is an atom, because of the fact it fairly is tremendously placativeThe tension that keeps electrons in place isn't gravity, yet electrostatic charm coupled with another quantum actual forces that are rather complicated of their perfect habitit fairly is all defined via the Schr?dinger equation, between the middle equations of quantum physicsThe relation between photograph voltaic device and the present atom kind could in line with risk be defined as such: you're making a image each 365 days of the photograph voltaic device - after a century, you overlay the photographs and calculate the probability of a planet to be able - the orbitalswe gained't precisely tell the place the electron certainly is, yet we are able to tell the place it maximum in all probability is.
Eqtn tells you 2Al + 3Cl2 - 2AlCl3 2 x27 54g Al reacts with 6 x 35.5 213g chlorine forming 267g AlCl3 so each Al needs about 4X as much chlorineYou haven't got that so chlorine must be the limiting agent Check mathematically 213g Cl react with 54g Al forming 267g AlCl3 so 46.7g Cl react with 54/213 x 46.7 11.84g Al and forms 267/213 x 46.7 58.54g AlCl3 All your answers were there You got a negative answer as you probably worked on Al mass to find the chlorineIt is in fact the other way round for the excess.
