CHAPTER 4 - REACTIVITY OF METALS

What is meant by mineral?

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

• 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.

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

Which of the following minerals is made up of element?

• Hematite

• Bauxite

• Galena

• Silver

Tags

NGSS.MS-PS1-1

Figure above shows a Quartz. Quartz is a combination from several elements. What are those elements?

• Silicon and carbon

• Carbon, calcium and oxygen

• Silicon and oxygen

• Tin and oxygen

Tags

NGSS.MS-PS1-1

What is the common name for Aluminium oxide ?

• Bauxite

• Calcite

• Pyrite

• Cassiterite

Calcium carbonate is a combination of:

• Calcium, carbon and nitrogen

• Calcium, hydrogen and nitrogen

• Calcium, oxygen and carbon

• Calcium, carbon and hydrogen

Tags

NGSS.MS-PS1-1

The following are examples of calcium carbonate, EXCEPT

• Calcite

• Coke

• Limestone

• Marble

Which metal produces MOST vigorous reaction when reacts with oxygen?

• Iron

• Magnesium

• Potassium

• Sodium

Tags

NGSS.MS-PS1-2

Magnesium + oxygen ----------> X

What is X ?

• Magnesium oxide

• Magnesium dioxide

• Magnesium trioxide

• Magnesium(II) oxide

Tags

NGSS.MS-PS1-1

Which of the following arrangements is TRUE about the arrangement of metals according to increasing reactivity.

• Fe ----> Mg ----> Al ----> Ca ----> Na

• Fe ----> Na ----> Ca ----> Mg ----> Al

• Fe ----> Al ----> Mg ----> Ca ----> Na

• Na ----> Ca ----> Mg ----> Al ----> Fe

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

• Zinc and hydrogen

• Zinc and Iron

• Magnesium and Aluminium

• Aluminium and Zinc