The brick is solid because it's not hollow or containing spaces or gaps
A homogeneous mixture is a mixture that is mixed so well together that you cannot see the different components that make up the mixture as the ingredients will not separate out, even over time.
Opposite pairs form ionic bonds, due to this the answer is D - Li and Br; They have unlike charges.
Coplorites I believe.
Hope this helps!
:)
Answer:
1) during a phase change: particles overcome forces of attraction and temperature stays the same not during a phase change: temperature rises 2)Particle motion decreases, and electrostatic forces pull particles closer together.
3) Gases fill their container, showing that gas particles are not tied together and can move far apart.
Explanation: