2. it becomes a liquid
4. its molecules lose energy
The change in state is due to the loss of energy.
Answer:
Should be 0.6106 though i could be wrong
Explanation:
4 Movement of less dense material
3 Heating of cooler material
1 cooling of warmer material
2 movement of denser material
Answer:
Option B. Both have a pH less than 7, but H3PO4 has a lower pH than HCl
Explanation:
Those are acid, so the pH would be < 7.
H₃PO₄ is a weak acid with 3 dissociations
HCl is a strong acid.
pH depends on [H]⁺
H₃PO₄ → 3H⁺ + PO₄⁻³
HCl → H⁺ + Cl⁻
If both acid, have the same concentration, [H⁺]H₃PO₄ > [H⁺]HCl, that's why the pH from the phosphoric will be lower.
