Ce cantitate de precipitat(BaSO4) se obține prin reacția dintre 196g soluție acid sulfuric 40% cu clorură de bariu?
Se dau masele atomice: A S = 32, A O = 16, A Cu = 64, A H = 1, A Ba =137.
repede va rog

b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3.

can you attach the

they are all solids.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.