Maybe not all of it because the heat would go back in forth in the aluminum bar and some of it will be given and some may even be lost because heat is just atoms moving faster and eventually those atoms will slow down
Yes, the correct answer is b
Density is mass divided by volume.
49g/14cm^3 = 3.5 g/cm^3
The answer is Mixture. Two more substances put together but each retaining their own identity is a Mixture. They are t<span>wo or more substances dispersed in one another but each retaining their own identity.</span>
KOH + HBr ---> KBr + H2O
0,3 moles of HBr ---in-------1000ml
x moles of HBr-------in------75ml
x = 0,0225 moles of HBr
according to the reaction: 1 mole of KOH = 1 mole of HBr
so
0,0225 moles of HBr = 0,0225 moles of KOH
0,0225 mole of KOH------in-----45ml
x moles of KOH -----------in------1000ml
x = 0,5 moles of KOH
answer: 0,5 mol/dm³ KOH (molarity)
