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...

2010 Summer

Theory

CH2 - SEPARATING SUBSTANCES

A fruit drink coloured orange contains a dissolved mixture of red and yellow colouring agents. One of these colouring agents is suspected of being ill...

2010 Summer

Theory

CH1 - STATES OF MATTER

A student carries out an experiment to find how fast 3 cm pieces of magnesium ribbon dissolve in 10 cm³ samples of sulfuric acid at different tempera...

2010 Summer

Theory

CH4 - ATOMS COMBINING

Which row shows the change that takes place when element X gains the new particle shown?[Table_1]Table 1| | particle gained | change || --- ...

2010 Summer

Theory

CH3 - ATOMS AND ELEMENTS

The diagram shows an atom.key𝑒 electronnucleus containing nine particlesWhat is the proton number and neutron number of the atom?[Table_1]| | ...

2010 Summer

Theory

CH3 - ATOMS AND ELEMENTS

The symbols of two atoms may be written as shown.$$^{52}_{23}\text{X} \quad {}^{52}_{24}\text{Y}$$Which statement about these atoms is correct?A. They...

2010 Summer

Theory

CH14 - MAKING USE OF METALS

Which name is given to mixtures of metals?A. alloysB. compoundsC. oresD. salts

2010 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 ionB by losing six electrons ...

2010 Summer

Theory

CH4 - ATOMS COMBINING

In which compounds are pairs of electrons shared between atoms?1. sodium chloride2. methane3. lead bromideA 1 only B 2 only C 1 and 3 D 1, 2 and 3

2010 Summer

Theory

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Hydrogen and chlorine react as shown.What is the equation for this reaction?A. $2H + 2Cl \rightarrow 2HCl$B. $2H + 2Cl \rightarrow H_2Cl_2$C. $H_2 + C...

2010 Summer