Chemical elements with similar properties are in the same Group of the periodic table.:

1.   ?    helium
2.   ?    iron
3.   ?    sodium
4.   ?    transition metals

Chemical elements with similar properties are in the same Group of the periodic table.:

1.   ?    helium
2.   ?    iron
3.   ?    sodium
4.   ?    transition metals

Chemical elements with similar properties are in the same Group of the periodic table.:

1.   ?    helium
2.   ?    iron
3.   ?    sodium
4.   ?    transition metals

Chemical elements with similar properties are in the same Group of the periodic table.:

1.   ?    helium
2.   ?    iron
3.   ?    sodium
4.   ?    transition metals

Compounds of alkali __(5)__, called salts, can be made by reacting solutions of their hydroxides with __(6)__.
In neutralisation __(7)__ hydrochloric acid produces salts called __(8)__.

What is item (5)?

1.   ?    acids
2.   ?    chlorides
3.   ?    metals
4.   ?    reactions

Compounds of alkali __(5)__, called salts, can be made by reacting solutions of their hydroxides with __(6)__.
In neutralisation __(7)__ hydrochloric acid produces salts called __(8)__.

What is item (6)?

1.   ?    acid
2.   ?    chlorides
3.   ?    metals
4.   ?    reactions

Compounds of alkali __(5)__, called salts, can be made by reacting solutions of their hydroxides with __(6)__.
In neutralisation __(7)__ hydrochloric acid produces salts called __(8)__.

What is item (6)?

1.   ?    acid
2.   ?    chlorides
3.   ?    metals
4.   ?    reactions

Compounds of alkali __(5)__, called salts, can be made by reacting solutions of their hydroxides with __(6)__.
In neutralisation __(7)__ hydrochloric acid produces salts called __(8)__.

What is item (6)?

1.   ?    acid
2.   ?    chlorides
3.   ?    metals
4.   ?    reactions

Rusting happens when __(9)__ is oxidised back to its oxide. For sacrificial protection, iron is connected to __(10)__. To make stainless steel, iron is mixed with __(11)__. The __(12)__ made does not corrode.

1.   ?    alloy
2.   ?    chromium
3.   ?    iron
4.   ?    zinc

Rusting happens when __(9)__ is oxidised back to its oxide. For sacrificial protection, iron is connected to __(10)__. To make stainless steel, iron is mixed with __(11)__. The __(12)__ made does not corrode.

1.   ?    alloy
2.   ?    chromium
3.   ?    iron
4.   ?    zinc

Rusting happens when __(9)__ is oxidised back to its oxide. For sacrificial protection, iron is connected to __(10)__. To make stainless steel, iron is mixed with __(11)__. The __(12)__ made does not corrode.

1.   ?    alloy
2.   ?    chromium
3.   ?    iron
4.   ?    zinc

Rusting happens when __(9)__ is oxidised back to its oxide. For sacrificial protection, iron is connected to __(10)__. To make stainless steel, iron is mixed with __(11)__. The __(12)__ made does not corrode.

1.   ?    alloy
2.   ?    chromium
3.   ?    iron
4.   ?    zinc

Crude oil can be __(13)__ into a number of different fractions each containing similar hydrocarbons. The crude oil is first __(14)__ then the vapours __(15)__ at different temperatures. Large hydrocarbon molecules can then be __(16)__ to produce hydrocarbons with smaller molecules.

1.   ?    condensed
2.   ?    cracked
3.   ?    evapourated
4.   ?    separated

Crude oil can be __(13)__ into a number of different fractions each containing similar hydrocarbons. The crude oil is first __(14)__ then the vapours __(15)__ at different temperatures. Large hydrocarbon molecules can then be __(16)__ to produce hydrocarbons with smaller molecules.

1.   ?    condensed
2.   ?    cracked
3.   ?    evapourated
4.   ?    separated

Crude oil can be __(13)__ into a number of different fractions each containing similar hydrocarbons. The crude oil is first __(14)__ then the vapours __(15)__ at different temperatures. Large hydrocarbon molecules can then be __(16)__ to produce hydrocarbons with smaller molecules.

1.   ?    condensed
2.   ?    cracked
3.   ?    evapourated
4.   ?    separated

Crude oil can be __(13)__ into a number of different fractions each containing similar hydrocarbons. The crude oil is first __(14)__ then the vapours __(15)__ at different temperatures. Large hydrocarbon molecules can then be __(16)__ to produce hydrocarbons with smaller molecules.

1.   ?    condensed
2.   ?    cracked
3.   ?    evapourated
4.   ?    separated

Metal W will displace copper but not magnesium. Metal X will not displace copper. Metal Y will displace both copper and magnesium. Metal Z will displace metal Y.

1.   ?    Metal W
2.   ?    Metal X
3.   ?    Metal Y
4.   ?    Metal Z

Metal W will displace copper but not magnesium. Metal X will not displace copper. Metal Y will displace both copper and magnesium. Metal Z will displace metal Y.

1.   ?    Metal W
2.   ?    Metal X
3.   ?    Metal Y
4.   ?    Metal Z

Metal W will displace copper but not magnesium. Metal X will not displace copper. Metal Y will displace both copper and magnesium. Metal Z will displace metal Y.

1.   ?    Metal W
2.   ?    Metal X
3.   ?    Metal Y
4.   ?    Metal Z

Metal W will displace copper but not magnesium. Metal X will not displace copper. Metal Y will displace both copper and magnesium. Metal Z will displace metal Y.

1.   ?    Metal W
2.   ?    Metal X
3.   ?    Metal Y
4.   ?    Metal Z