8/12/2019 4th Form Test Acids Bases Salts Period 3 Elements Intro to Chemical Bonding and Ionic Bonding Mon Nov 12 2012

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4thform Test Acids, Bases, Salts, Period 3 elements and Chemical Bonding

Name.

1. A metal is placed in a dilute acid solution and there as rapid effer!escence.

"hat T"# deductions can $e made from this o$ser!ation%

A metal cannot $e copper, gold or sil!er and the acid is a ea& acidB metal cannot $e magnesium or 'inc and the acid is a strong acid

C metal cannot $e copper, sil!er or golf and the acid is a strong acid

( the acid is a strong acid and no gas as produced

). *ni!ersal indicator as added to ethanoic acid and the solution turned

orange. A fe drops of su$stance + as added and the solution then turned

purple. "hat p range is responsi$le for the orange colour and hat possi$le

su$stance could su$stance + $e%

A - 3 and h/drochloric acid B 4 0 and calcium sulphate

C 4 0 and sodium h/droide ( 112 14 and sodium h/droide

3. "hen ma&ing a sample of an insolu$le salt, the residue is rinsed ith

distilled ater. "hich of the folloing is the $est reason for doing this%

A To produce more of the salt B To remo!e an/ impurities

C To preser!e the salt ( To ensure the colour is hite

4. "h/ do elements react% To achie!e2A an outermost shell of ) electrons B an outermost shell of electrons

C a filled outermost shell ( a shell containing electrons

5. 6onic $onding occurs $eteen

A metal and metal B metal and non2metal

C non2metal and non2metal ( metal, non2metal and semi2metal

0. 6n period 3, the elements on the left act as

A non2metals B metals C semi2metals( inert su$stances

7. The ord amphoteric means

A reacts ith acids onl/ B reacts ith $ases onl/

C reacts ith $oth acids and $ases ( reacts ith neither acids nor $ases

. "hich of the folloing elements in period 3 has the highest melting point%

A sodium B siliconC chlorine ( sulphur

8. A su$stance is placed in an acid solution. The su$stance dissol!ed

completel/ $ut no gas as produced. This su$stance is most li&el/ a9an2

A car$onate B metal C h/drogencar$onate ( oide

8/12/2019 4th Form Test Acids Bases Salts Period 3 Elements Intro to Chemical Bonding and Ionic Bonding Mon Nov 12 2012

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1-. :cess solid is ala/s used hen a salt is $eing prepared $ecause2

A it ensures the salt is ala/s hite

B it ensures that all the acid has $een used up

C it ensures the reaction occurs ;uic&l/

( it ensures the salt can $e filtered

11. To form an ionic $ond, hat MUST$e present%

A molecules B oppositel/ charged ions C onl/ cations ( onl/ anions

1). "hich element in period 3 ould notconduct electricit/%

A sodium B silicon C aluminium ( chlorine

13. A period 3 oide dissol!es in ater forming a solution ith a

p of 1). "hich of the folloing period 3 elements it is most li&el/ to $e%

A silicon B sodium C chlorine ( phosphorous

14. A period 3 oide reacts onl/ ith $ases. "hich of the folloing period 3

oides BESTfits this description% A Al)#3 B S#) C