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i have a set of drill-bits, but they are round, nothing for the drill chuck to grabwhat are the pieces i need for them to attach? they are robe drill bitsmy existing drillbits are inside metal hexagons that the drill can grab onto
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For science, we need to find fifteen objects, it can be basically anything, that has an element in themWe need to make a display of them with the ingredient label and example of the object.So far, I have:Crystal Light on the Go Packet for PotassiumPencil lead for CarbonSalt for SodiumMustard for WaterDietary Supplement for MagnessiumLight bulb for MercuryMilk for Calciumand Aluminum Foil for AluminumI need help with thinking of more, please only comment if you're willing to help.
If it were possible for you, I would tell you to go back in time and choose not to bleach your hairThe chemicals really kill it (literally)But since you cannot, maybe you should get some sort of conditioning mask.
1Write balanced chemical equations for each of the following reactionsDon’t forget to indicate phaseIf a precipitate forms, circle itIf all “products” are predicted to be soluble, indicate that there is no reaction by writing “NR”aAqueous sodium iodide is mixed with aqueous silver nitratebAqueous potassium hydroxide is mixed with lead(II) nitratecAqueous magnesium nitrate is mixed with aqueous sodium phosphatedAqueous barium nitrate is mixed with sulfuric acideAqueous aluminum nitrate is mixed with aqueous ammonium sulfidefAqueous lead(II) nitrate is mixed with sodium sulfate.
You get a definitive reaction if a portion of the reactants leave the solution, either by becoming a gas or by becoming a precipitateThat being said: a) Silver iodide precipitates so there is a reaction b) lead hydroxide will tend to precipitate so there is a reaction c) Magnesium phosphate will tend to precipitate so there is a reactiond) Barium sulphate is not very soluble so there is a reaction e) Aluminum sulphide will tend to precipitate so there is a reaction f) Lead sulphate should tend to precipitate so there is a reaction You do the balanced equations.
I want to burn text out of paper? how would I make a stencil which doesn't get caught on flamesI have tried metal but it is hard to cut letters neatly, is there a a type of paper which doesn't get caught on fire?
Newspapers use off set printingAs a part of the process, they use aluminum sheetsThey are heavier than heavy duty aluminum foil, but thinner that the construction grade aluminum.
Domestic electricity costs about 8.75 cents/kwhOne mole of electrons 96,500 coulombs1 kwh 3.6010^6 coulombsAl (0) -gt; Al (+3) +3 electronsI am super confused and have no idea where to start so please also explain how you got your answer so I can learn for other questions like those that may be on the exam- thanks in advance :)
RE: are you able to point a lunch bag/field which could keep foodstuff warm for 4 hours? My son doesnt like something 'packable'So we could desire to discover some thing that could desire to keep his lunch warm (or heat a minimum of) for 4 hoursWe'd be packing products like pancakes or spaghetti noodles - not something particularly perishablei attempted a warmth %from a pyrex serving dish, besides the shown fact that it purely stayed.
1) what do alkali metals do when they become ions?a) lose one electronb)lose two electronsc) gain one electrond) gain two electrons2) which statement is true?a)neon accepts one electron when it becomes ionb)aluminum accepts three electrons when it becomes ionc)iodine accepts one electron when it becomes iond)nitrogen accepts two electrons when it becomes ion3) which of the following is an acid?a) CH3OHb)CH3COHc)CH3COOHd)CH3CCIH3)which is a salt?a)BeCl2b) BrCl2c)BCl3d)BiCl2which is a covalent compound?a)Br2b)NaOHc)CaCl2d)Ne2
1)Alkali metals have a electronic configuration resulting in the presence of one valence electron in their valence shellFor ex: Li(Atomic number3) - 2,1 Na(Atomic number11) - 2,8,1 And metals are electropositive in nature,ie they lose an electron to form a monopositive ion(+1).It can lose only lose only one electron during ionisation since it has only one electron in its valence shell.(There is second and further ionisations which you dont have to bother about)So ur answer is a) 2) Neon being a noble gas does not accept or donateAluminium being a metal,it is electropositive like I said above and hence forms a tripositive ion(+3) which is unstable.So in order to become stable again,it accepts 3 electronsIodine is electronegative(It has tendency to lose electron),so c) is wrongNitrogen too is electronegative(It wont accept electrons)So ur answer is b) 3) -COOH is an acid group.So this one is c) -COH or -CHO is an aldehye -OH is an alcohol 4)Becl2 is a salt.Ur answer is a) Br and Cl are in the same group,both are non metals.So BrCl2 is not a saltBCl3 is not a salt.It is covalent5) Br2 is covalent.Once u find the right option,dnt worry about hte rest,go for itCaCl2 is ionicNe2 does not exist as Ne is an inert gasNaOH could be bothBut Br2 is sure shot covalentSo your answer is a)
In Aluminium Oxide
Not sure about B C, A is The Time Machine with Guy Pearce, its based on the HG Wells novel of the same name.
Why is aluminium more reactive than lead?
stretch bending images.google.ca/images?hlensou ram bending images.google.ca/images?gbv2hl Ch