Chapter 4 & 5 SN DLP

Definition of mineral.

• A thing that is composed of two or more separate elements; a mixture

• Solid elements or compounds present naturally with definite crystalline structures and chemical compositions

• Each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter

• Solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions

Which of the following minerals is made up of element?

• Gold

• Galena

• Bauxite

• Limestone

What is the common name for Aluminium oxide ?

• Hematite

• Cassiterite

• Pyrite

• Bauxite

Limestone is made up of Calcium carbonate, what is the combination to produce this compound?

• Calcium, oxygen, hydrogen

• Calcium, oxygen, carbon

• Calcium, carbon, hydrogen

• Oxygen, carbon, hydrogen

The following are examples of calcium carbonate, EXCEPT

• Coke

• Shells (Marine Animals)

• Chalk

• Limestone

Which metal produces MOST vigorous reaction when reacts with oxygen?

• Aluminium

• Lead

• Sodium

• Copper

The hydrogen is located between ___________________ in reactivity series of metals.

• Zinc and Iron

• Iron and Tin

• Calcium and Magnesium

• Aluminium and Zinc

Figure shows the extraction of iron in a blast furnace.

Substances below are added at P, EXCEPT

• Iron oxide

• Carbon

• Limestone

• Aluminium ore

Thermochemistry is the study of ____ changes that occur when chemical reactions take place.

• Water

• Pressure

• Heat

• Mass

From Experiment 5.1, name the apparatus used to observe changes in the reactant.

• Polystyrene cup

• Thermometer

• Spatula

• Measuring cylinder