Theory

CH13 - THE BEHAVIOR OF METALS

The table gives information about three different metals G, H and J.[Table_1: metal vs reactivity]What is the order of reactivity of these metals?[Tab...

2009 Summer

Theory

CH13 - THE BEHAVIOR OF METALS

Which property do all metals have?A. They are hard.B. They conduct electricity.C. They form acidic oxides.D. They react with water.

2009 Summer

Theory

CH13 - THE BEHAVIOR OF METALS

Which property do all metals have? A) They are hard. B) They conduct electricity. C) They form acidic oxides. D) They react with water.

2009 Summer

Theory

CH13 - THE BEHAVIOR OF METALS

The table gives information about three different metals G, H and J. [Table_1] metal | does it react with | water | steam | G | ✗ ...

2009 Summer

Theory

CH13 - THE BEHAVIOR OF METALS

The reactivity series of metals given below contains both familiar and unfamiliar elements.For most of the unfamiliar elements, which are marked *, th...

2009 Summer

Theory

CH13 - THE BEHAVIOR OF METALS

Compound X is heated with carbon using the apparatus shown. A brown solid is formed in the reaction tube and the limewater turns cloudy.What is compo...

2009 Winter

Theory

CH13 - THE BEHAVIOR OF METALS

Some reactions of three metals are listed in the table.[Table_1]What is the order of reactivity of the metals?[Table_2]

2009 Winter

Theory

CH13 - THE BEHAVIOR OF METALS

Which property do all metals have?A They are soluble in water.B They conduct electricity.C They have high melting points.D They react with dilute sulf...

2009 Winter

Theory

CH13 - THE BEHAVIOR OF METALS

Some reactions of three metals are listed in the table.What is the order of reactivity of the metals?

2009 Winter

Theory

CH13 - THE BEHAVIOR OF METALS

Compound X is heated with carbon using the apparatus shown. A brown solid is formed in the reaction tube and the limewater turns cloudy. What is co...

2009 Winter

Theory

CH1 - STATES OF MATTER

The diagram shows a cup of tea. Which row describes the water particles in the air above the cup compared with the water particles in the cup?[Table_1...

2013 Summer

Theory

CH11 - ACIDS AND BASES

Crystals of sodium chloride were prepared by the following method.1 25.0cm3 of dilute hydrochloric acid was accurately measured into a conical flask....

2013 Summer

Theory

CH11 - ACIDS AND BASES

Lead iodide is insoluble in water.Lead iodide is made by adding aqueous lead nitrate to aqueous potassium iodide.Which pieces of apparatus are needed ...

2013 Summer

Theory

CH3 - ATOMS AND ELEMENTS

Element X is represented by $^{27}_{13}X$.Which statement about element X is correct?A. An atom of X contains 13 protons and 13 neutrons.B. An atom of...

2013 Summer

Theory

CH12 - THE PERIODIC TABLE

The positions of four elements are shown on the outline of the Periodic Table.Which element forms a coloured oxide?

2013 Summer

Theory

CH4 - ATOMS COMBINING

For which substance is the type of bonding \textbf{not} correct?[Table_1]The table contains the following:\begin{center}\begin{tabular}{|c|c|c|c|}\hli...

2013 Summer

Theory

CH4 - ATOMS COMBINING

Element X has six electrons in its outer shell. How could the element react? A by gaining two electrons to form a positive ion B by losing six elec...

2013 Summer

Theory

CH1 - STATES OF MATTER

The diagram shows an incomplete circuit. Which substance causes the lamp to light when added to the glass tube? A. aqueous sodium chloride B. aqu...

2013 Summer

Theory

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

A compound with the formula XF$_2$ has a relative formula mass of 78.What is element X?A) argonB) calciumC) neonD) zirconium

2013 Summer

Theory

CH13 - THE BEHAVIOR OF METALS

What is the balanced chemical equation for the reaction between calcium and water?A. $\text{Ca} + \text{H}_2\text{O} \rightarrow \text{CaOH} + \text{H...

2013 Summer