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 the result of dropping a purple crystal into water.Which processes take place in this experiment?[Table_1]| | chemical reac...

2014 Summer

Theory

CH2 - SEPARATING SUBSTANCES

The four pieces of apparatus shown below are used in chemical experiments.Which statement about the apparatus is correct?A. The burette measures the v...

2014 Summer

Theory

CH2 - SEPARATING SUBSTANCES

Alcohol and water are completely miscible. This means when mixed together they form only one liquid layer.Which method is used to separate alcohol fro...

2014 Summer

Theory

CH3 - ATOMS AND ELEMENTS

The diagram shows the structure of an atom of element X. What is X?A. boronB. carbonC. sodiumD. sulfur

2014 Summer

Theory

CH3 - ATOMS AND ELEMENTS

The diagrams show four particles. Which two diagrams show atoms that are isotopes of each other?A 1 and 2B 1 and 3C 2 and 3D 2 and 4

2014 Summer

Theory

CH4 - ATOMS COMBINING

The 'lead' in a pencil is made of a mixture of graphite and clay. When the percentage of graphite is increased, the pencil slides across the paper mor...

2014 Summer

Theory

CH4 - ATOMS COMBINING

Element X is in Group I of the Periodic Table. X reacts with element Y to form an ionic compound.Which equation shows the process that takes place whe...

2014 Summer

Theory

CH4 - ATOMS COMBINING

Solid F is an element.Solid G is a compound.Neither solid conducts electricity but G conducts electricity when dissolved in water.These properties sug...

2014 Summer

Theory

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

A compound contains one atom of calcium, two atoms of hydrogen and two atoms of oxygen.What is the correct chemical formula of the compound?A CaO_2H_2...

2014 Summer

Theory

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

In athletics, banned drugs such as nandrolone have been taken illegally to improve performance. Nandrolone has the molecular formula $C_{18}H_{26}O_{2...

2014 Summer