EXPE 3 ( COMPOUND AND MIXTURE) Flashcards
___ is any variety of matter that has identical composition and properties. May either be an element or a compound
Pure substance
An element made up of only one kind of atom and cannot be transformed into a simpler substances
Element
A substance composed of two or more kinds of atoms combined in definite proportions by weight.
Compound
Can be decomposed into its elements, or into simpler compounds
Compounds
Made up of two or more substances in varied proportions intimately jumbled together
Mixture
No differing parts can be distinguished
Homogeneous
Visible differing parts
Heterogeneous
Ferrous sulfide (compound of iron and sulfur) when heated the classification is ?
Compound
The iron and sulfur in a beaker are classification of ?
Mixture
When ferrous sulfide is mixed in another watch glass and mix using another glass rod, the classification is ?
Compound
When a magnet over the watch glass in which mixture of iron and sulfur is taken, the classification is?
Physical mixture
When no particles cling to the magnet, showing that the iron has lost its magnetic properties in the compound the classification is?
Chemical compound
The sulfur dissolve in carbon disulfide and forms a yellow colored solution. The classification is?
Mixture
When a small of quantity of compound to a clean boiling tube and add a few drops of carbon disulfide into it and shake the boiling tube, the classification is ?
Compound
Transfer a small quantity of mixture to a boiling tube and place it in the test tube rack. The classification is?
Compound
Similarly transfer a small quantity of compound to a boiling tube and add a small quantity of dilute HCI into it, the classification is?
Compound
Cork the boiling tube which has a bent tube connected to it. Insert the other end of the bent tube to copper sulfate solution, the classification is?
Compound
