A
The melting point of silver is a __________ property
physical
An exothermic reaction _________ thermal energy
releases
The ability to react with oxygen is a physical property. T/F?
FALSE
Flammability is a __________ property
chemical
When a peeled banana turns black it is a _______ _________
chemical change
Density is a physical property T/F?
TRUE
The ability of a pond to freeze over in winter is a ________ property
physical
A characteristic of matter that allows it to change to something new is a _________ ____________.
chemical property
Breaking a chemical bond _________ energy from the surroundings.
absorbs
Titanium reacts less with oxygen than most metals do. This is a chemical property. T/F?
TRUE
Explain the law of conservation of mass.
The total mass of the reactants equals the total mass of the products because atoms are rearranged but not created or destroyed during the reaction.
A dish holding a solution of sugar and water is left in a sunny spot. After a few days, the solution has disappeared and a white residue remains on the dish. Has a physical change or a chemical change taken place? Explain.
A physical change happened as the water evaporated. The white residue is the sugar. No change in composition happened.