A solid is a state of matter. Solids don't readily mix.
Particles never actually disappear.
You can lose them in fluid if they readily dissolve in that fluid. When dissolving, the particles may break up (ionize) and you could probably call that "disappearing". Some solids will absorb gas particles. For example, concrete can absorb oxygen molecules. But the oxygen is still there, it hasn't disappeared, just been absorbed.
Concrete is a mixture and oxygen can be absorbed by it so it would seem the answer is "yes". However, this is kind of skewing the original question a bit.
Short answer: No, particles never disappear.
Solution
In this case a solution is formed.
The process in which a solid mixes with a liquid and disappears into it is called dissolution. During dissolution, the solid particles break apart and interact with the liquid molecules, effectively becoming evenly distributed throughout the liquid. This process often involves the solute (solid) being surrounded by solvent (liquid) molecules, leading to a homogeneous solution. Factors such as temperature, stirring, and the nature of the substances can influence the rate of dissolution.
A liquid in which something has been dissolved is usually referred to as a 'solution'.
When enough heat is added to a solid, it can transition into a liquid state through a process called melting. The added thermal energy increases the vibrational motion of the particles, overcoming the forces that hold them in a fixed position. Once the melting point is reached, the solid becomes a liquid.
Solution
In this case a solution is formed.
Heat is added to a solid to make a liquid... this is called melting. some additional liquid (water,ethanol,acid…) also change solid into a liquid.
Carbon changes from gas, to liquid, to solid form, and never disappears, so in that sense it is renewable.
The solid being added to the liquid is called a solute. When the solute is dissolved in the liquid, it forms a solution.
when a solid disappears in the solution we can say the solid?
When energy is added to a solid, it can reach its melting point where it transitions from a solid to a liquid.
A liquid in which something has been dissolved is usually referred to as a 'solution'.
solid is it?
LIQUID
heat
well i do not everyone