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Matter

Solids, Liquids and Gases, Phase Change and Physical/Chemical Changes

QuestionAnswer
Cannot be poured: Solid/Liquid/Gas Solid
Particles are not stuck together at all: Solid/Liquid/Gas Gas
Movement of a gas that fills an area Diffusion
Changing of state from a solid to a liquid Melting
Changing of state from a gas to a liquid Condensation
Changing of state from a solid to a gas Sublimation
Changing of state from a gas to a solid Deposition
Changing of state from a liquid to a gas Evaporation
No new substance is formed: physical or chemical change? Physical
Chewing food: physical or chemical change? Chemical
Melting candle wax: physical or chemical change? Physical
Reaction where heat is absorbed and temperature decreases Endothermic reaction
Reaction where heat is given out and temperature increases Exothermic reaction
Ammonium Chloride and what other SOLID make an excellent endothermic reaction? Barium Hydroxide
When magnesium reacts with oxygen what evidence is there of a chemical change? White light given off
When Hydrogen burns what evidence is there of a chemical change? Loud pop/bang
When a glowing stick is placed in pure oxygen what happens? It relights
What is the formula for Hydrogen Peroxide? H2O2
What is the formula for Hydrochloric Acid? HCl
What is the formula for Magnesium Chloride? MgCl2
The formula for density is: Mass/Volume
The units for density for a liquid are: g/ml
The units for density for a solid are usually: g/cm3
The density of pure water is: 1g/ml
The density of a substance is 7.28g/cm3 so it will sink or float in water?
Created by: ChemistryWaltham
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