This experiment involves the reaction of ba(oh)2 with h2so4. which of the following gives the balanced chemical reaction used in the experiment?
ba(oh)2 (aq) + h2so4(aq) → h2ba(s) + so4(oh)2(l)
ba(oh)2 (aq) + h2so4(aq) → baso4(s) + h2o(l)
baso4(s) + 2 h2o(l) → ba(oh)2 (aq) + h2so4(aq)
ba(oh)2 (aq) + h2so4(aq) → baso4(s) + 2 h2o(l)

Ba(OH)2 (aq) + H2SO4(aq) → BaSO4(s) + 2 H2O(l)

That's the right one.

Explanation:

You should see that this equation is balanced, not as

Ba(OH)2 (aq) + H2SO4(aq) → BaSO4(s) + H2O(l)

(on reactive we have 4 H, on products, we have only 2)

Ba(OH)2 (aq) + H2SO4(aq) → H2Ba(s) + SO4(OH)2(l)

(this is impossible, it's a nonsense)

BaSO4(s) + 2 H2O(l) → Ba(OH)2 (aq) + H2SO4(aq)

(it is the same with the right one but is the other way around. The statement says, reaction of Ba(OH)2 with H2SO4, not BaSO4 with water. Also, it is not a chemical balance.

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.