8/12/2019 Teks Listening Bahasa Inggris

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Nama : Ni Luh Putu Mega Wahyuni

NIM : 1308105008

Jurusan : Kimia

Chmvid09m!v

"!me #ater has $een added int! an em%ty &an and it's $een set !n a h!t %(ate t! $!i( When

a(( the #ater has $een &!nverted t! steam) a st!%%er is %(a&ed !n the &an *hen it's rem!ved

+r!m the heat s!ur&e and %ut in a $ea,er !+ #ater

Chmvid10m!v

*he dua( +(as, !r therm!s &!ntains (i-uid nitr!gen at a tem%erature !+ ../ Ke(vin *he

$a((!!n has $een $(!#n u% #ith air

Chmvid13m!v

(uminium meta( is a very str!ng redu&ing agent *he +(!#er %!t &!ntains *hermite) a

miture !+ +ine(y gr!und a(uminium meta( and ir!n 2III !ide %(us a starter miture

&!ntaining magnesium meta( *he rea&ti!n is initiated $y igniting the magnesium meta(

ri$$!n "!me !+ the m!(ten ir!n has +(!#ed !ut thr!ugh the $!tt!m !+ the +(!#er %!t) int! the

$u&,et !+ sand

Chmvid14m!v

"a(t !+ meta(s) #hen heated in a +(ame) emit a (ight !+ &hara&teristi& &!(!rs *he $!tt(es

&!ntain sam%(es !+ vari!us sa(ts (!!% !+ %(atinum #ire #i(( $e used t! intr!du&e a sma((

am!unt ! ea&h sa(t) int! the +(ame *his is s!dium a&etate *his is &!%%er 2II &h(!ride N!#

$!ri& a&id *his is %!tassium &h(!ride *his is (ead 2II nitrate N!# &!%%er 2II nitrate *he

(ast sa(t is (ithium &h(!ride

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Chmvid18m!v

*his magnet is very str!ng *he %!(es !+ the magnet is 1 &entimeter a%art !&us y!ur

attenti!n !n the %!(es !+ the magnet *he dua( +(as, !r therm!s &!ntains (i-uid nitr!gen at the

tem%erature !+ ../ Ke(vin *he test tu$e &!ntains (i-uid !ygen at the tem%erature !+ 90/

Ke(vin *he residua( #hite s!(id is i&e) #hi&h +!rmed +r!m #ater in the atm!s%here

Chmvid66m!v

*he (e+t $ea,er &!ntains hydr!gen %er!ide *he midd(e $ea,er &!ntains %!tassium i!date

and su(+uri& a&id *he right $ea,er &!ntains ma(!ni& a&id) manganese 2II su(+ate) and star&h

7-ua( v!(ume !+ these three s!(uti!ns are added t! the (arge $ea,er *he &hemist #h!

dis&!vered this rea&ti!n #ere t#! "an ran&is&! high s&h!!( tea&hers) *h!mas " riggs and

Warren C aus&her *he detai(ed nature !+ this system is a &!m%(i&ated rea&ti!n #hi&h is

sti(( $eing investigated n(i,e m!st &hemi&a( rea&ti!n) this !ne &y&(es thr!ugh a series !+

&!(!r &hanges severa( times $e+!re +ina((y st!%%ing at $(ue

Chmvid6.m!v

When e(e&tri&ity is %assed thr!ugh #ater) it's de&!m%!sed int! e(ementa( hydr!gen and

!ygen *he e(e&tr!(ysis se%arat!r is designed) s! that these gases &an $e &!((e&ted and

measured P(atinum e(e&tr!des are used t! %ass e(e&tri&a( energy +r!m the ;C %!#er s!ur&e

int! the #ater *he a%%aratus is +i((ed #ith #ater) and e(e&tr!(yte s!dium su(+ate has $een

mied #ith the #ater t! &!ndu&t &urrent *he green &!(!r is due t! the %resen&e !+ the a&id

$ase indi&at!r $r!m!thym!( $(ue *he st!%&!&,s are n!# &(!sed *he e(e&tri&a( &ir&uit is

&!m%(eted nd the %!#er su%%(y is s#it&hed !n N!te the &!(!r !+ the s!(uti!n as #e(( as the

v!(umes !+ the gase!us %r!du&t *he indi&at!r turns $(ue and $asi& s!(uti!n) it turns ye((!# in

the %resen&e !+ a&id *he v!(ume !+ gas !n the right hand side) is 668 mi((i(iters) the v!(ume

!n the (e+t hand side is 4.6 mi((i(iters

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Chmvid68m!v

n e(e&tr!&hemi&a( &e(( that generates e(e&tri&a( %!tentia( !r v!(tage is &a((ed in&?&!%%er &e(( is a ty%i&a( v!(tai& &e((

&!nstru&ted +r!m t#! di++erent meta(s and a-ue!us s!(uti!n !+ their sa(ts *he &!%%er ha(+ &e((

&!nsists !+ a %ie&e !+ &!%%er meta( di%%ing int! a-ue!us s!(uti!n !+ &!%%er 2II su(+ate *he

>in& ha(+ &e(( &!nsists !+ a %ie&e !+ >in& meta( in &!nta&t #ith a-ue!us s!(uti!n !+ >in& 2II

su(+ate sa(t $ridge #hi&h &!ntained an a-ue!us s!(uti!n !+ an e(e&tr!(yte %r!vides indire&t

&!nta&t $et#een the t#! ha(+ &e((s and &!m%(etes the e(e&tri&a( &ir&uit v!(tmeter measures

the e(e&tri&a( %!tentia( generated $y the &hemi&a( rea&ti!n *he &urrent +(!#s in the dire&ti!n

!+ the s%!ntane!us &hemi&a( rea&ti!n Wi(( >in& 2II $e s%!ntane!us(y redu&ed t! >in& meta(

$y &!%%er) !r vi&e versa@ *he &!%%er meta( remains un&hanged ut the >in& meta( has

a&-uired a dar, &!ating !+ &!%%er meta( *he &!%%er a%%ears dar, $e&ause it is in a very

+ine(y divided state *his (em!n $attery is re(ated t! the >in&?&!%%er &e(( A!u &an $ui(d this

$attery +r!m (em!n) ga(vani>ed nai(s) and %ennies B!# mu&h e(e&tri&a( %!tentia( is generated

$y a three?(em!n $attery@

Chmvid69m!v

*he dis& is a su%er?&!ndu&ting serani& it is $eing &!!(ed $y (i-uid nitr!gen at a tem%erature !+

../ Ke(vin *he &u$e is a magnet

Chmvid33m!v

*! ma,e ny(!n) #e %!(ymeri>ed t#! !rgani& m!(e&u(es *he right $ea,er &!ntains an

a-ue!us s!(uti!n !+ 1)?;iamin!heane and s!dium hydr!ide *he (e+t $ea,er &!ntains

di%!y( &h(!ride diss!(ved in heane n a&id?$ase indi&at!r has $een added t! the a-ue!us

s!(uti!n in !rder t! ma,e the t#! (i-uid (ayers m!re visi$(e *he rea&ti!n !&&urs at the

inter+a&e !+ the t#! (i-uid (ayers *he ny(!n thread is %u((ed !ut thr!ugh the t!% (ayer