Describe the motion solid of particles in a solid

As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter

Can someone me with 6 to 10 plz this is for masteries test.

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring