Answer this n I will mark as brainliest. You will have your class science practical
tomorrow and your science teacher shows a
concern that the school is running out of litmus
paper. There are only a few litmus papers left,
which will not be enough for everyone to use.

May someone me with these science questions

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?