Flashcards in C2.3.2 - Changing State Deck (26):
What happens to the forces of attraction whenever something boils or melts?
They are overcome, and some or all of the bonds between its particles break
What could happen when a substance melts or boils?
It could become a liquid, or become a gas
What is the process of a solid turning into a liquid?
What is the process of a solid becoming a gas?
If the bonds in a substance are strong, will it take more or less energy to break them?
Give examples of the forces that could break.
What do you know about a substance if its melting point is high?
It has got a lot of strong bonds
What do you know about a substance that has a low melting point?
It doesn’t have many strong covalent bonds
What is transferred to the surroundings by heat when chemical bonds are formed?
Chemical stored energy
What happens to the bonds inside a substance when it condenses / freezes?
The bonds form again
What is the process of liquid turning into a solid?
What is the process of a gas turning into a liquid?
What are the bonds involved in the state changes of metals?
What is the relative strength of metallic bonds?
What are examples of metals?
What are the bonds involved in state changes in an ionic structure?
What is the relative strength of ionic bonds?
What is an example of an ionic compound?
What are the bonds involved in state changes in giant covalent structures?
What is the relative strength for covalent bonds?
What are examples of giant covalent structures?
What are the bonds involved in state changes in simple molecules?
What is the relative strength intermolecular forces?
What are examples of simple molecules?
Oxygen, water and wax
What state are simple molecules usually in at room temperature?
Usually liquid or gas, but can also be a solid but easily melted