They become a piece of matter
Answer:
Caffeine, lead, Copper(ii) chloride, Sodium chloride, silver and tungsten
Answer: 240 mL
Explanation:
(20 kPa)(300 mL) = (25 kPa)V2
V2 = 240 mL
Or my way which was
300 mL / 25 kPa =12
12(5)=60
300-60=240mL
It will float, because it is almost weighs like a pen.
A physical change is when the physical properties of an object change, whereas a chemical change is when the chemical properties of an object change. Iron rusting is a result of a chemical change, because the rust was not there before. Silver tarnishing is a chemical change for the same reason. Gasoline burning is also a chemical change, because gasoline changes chemically. Therefore, metal denting is a physical change, because the shape and position of an object is a physical property, and there are no new substances being formed, which are all indications of a physical change.