Parsecs or abbreviated pc
Phenolphthalein
In acid it is colourless and in water also colourless
Answer:
Atoms gain energy as a solid changes to a liquid. If atoms energy during a change of state, they are pulled together by attractive forces and become more organized.
A homogeneous mixture is a solid, liquid or gaseous mixture that has the same proportions of its components throughout any given sample & a heterogeneous mixture has components in which proportions vary throughout the sample. They are both similar because they’re often referred to as solutions
NH₄Cl → NH₄⁺ + Cl⁻
NH₄⁺ (the ammonium cation)
