Which statememt best explains why the atomic theory developed efficiently? -Scientists ignored all previous knowledge about atoms.
-Scientists had used creativity and the scientific method in their investigations.
-Scientists had used philosphical viewpoint as a method of investigation.
-Scientists rarely repeated experiments to make sure the results were correct.

The answer for #3 is c but i don't know why

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction