Science Quiz / yr1 chemistry (episode IV)

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Clinton, she's wack. trump, he's wack. ME? I'm tight as,,,

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HintAnswer
the least oxidising halogen
down group 7 (17) more electrons mean stronger ____ _____
at RTP, all halogens exist as _______ molecules
which silver halide is most soluble in aqueous ammonia
which chemical causes lime water to turn cloudy?
chlorine in water offers s______ after a natural disaster
group 2 elements are good ______ agents
what is the charge of a barium ion
pH of solutions of group 2 elements ________ down the group
when chlorine dissolves in water, name the product (/2)
colour of silver iodide
the ______ reactive halogen forms diatomic molecules in solution
silver halides are different c________
how many halogen solutions does bromine react with?
product of a positive ammonium test (/2)
reactivity ______ down group 7 (17)
barium sulfate is _______ in water
chlorine kills w____ b_____ pathogens
what layer is coloured when a halogen is dissolved in cyclohexane (the ______ layer)
group 2 elements react with water forming (/2)
which reagent is used in the carbonate test?
cl2 + 2naoh -> (/3)
what should you bubble the gas produced by a positive carbonate test through?
if water contains dissolved ______ ______ then more chlorine dissolves
aqueous ammonia added to distinguish between which chemical compounds (s______ ________)
the ______ reactive halogen forms forms halide ions in solution
what happens if carbonate is present during a halide test? (what forms? a _____)
silver halides have different ________ in aqueous ammonia
suspension of white magnesium hydroxide is also called:
chlorinated hydrocarbons are c______
what colour is iodine dissolved in water
product of a positive ammonium test (/2)
ammonia gas will not produced bubbles, because ammonia is very _________ in water
silver carbonate and silver sulfate are both p________ in water
reagent used in halide test
group 2 oxides react with water to form an alkaline solution of a
solid state halogens form lattices held together by ____ ______
cl2 +h2o -> hclo +hcl is what special type of redox reaction?
chlorine is a re________ ir________
h2so4 is unsuitable for carbonate test as it contains _____ ions
chlorine is used a _______ ______ agent by south west water
analysis with numerical results
reagent used in sulfate test (/2)
what colour is iodine dissolved in cyclohexane
molecular formula for calcium hydroxide
what precipitate forms if sulfate ions are present during the halide test?
what is the precipitate in a limewater/co2 reaction called
chlorine in drinking water can react with organic hydrocarbons from decaying v______
a redox reaction in which the same element is both oxidised and reduced
colour of fluorine gas
HintAnswer
group 2 bases used as ______ to treat indigestion
stronger london forces exist when there are more _______
group 2 elements react with water forming (/2)
colour of the product solution from cl2 + 2I- reaction
solubility ______ down group 2
which intermolecular force determines the difference in boiling point of solid halogens
chlorine ensures d_____ _______ is safe
chlorine used as a d_____
how many halogen solutions does iodine react with?
trend in halogen reactivity reducing down group 17 due to (/2)
chlorine + organic hydrocarbons can form =
adding a more reactive halogen to a solution with halide ions in, leads to a __________ reaction
what colour is chlorine dissolved in water
what colour is calcium carbonate?
what colour is bromine dissolved in water
what type of analysis is a titration?
a halogen displacement reaction leads to a colour change. the colour is of the diatomic molecules or the halides?
reason for trend in down group 2 (/2)
chlorine is extremely t_____
what precipitate forms if carbonate present during a halide test?
outer electrons of every halogen atom (in form y^z
reducing agents ______ electrons
colour of pH indicator removed by _____ acid
chloric (I) acid acts as a weak b______
what should you do to the mixture in an ammonium test?
the reagent in the carbonate test should be d_____?
ammonium ion is a c_____
only proceed fro the carbonate test to the sulfate test, if ____ _______ is present
molecular formula of chloric(I) acid
reagent used in sulfate test, if a test for a halide will follow after
analysis based on observations rather than measurements
silver bromide is soluble in _______ aqueous ammonia
reason for trend in down group 2 (/2)
what colour is chlorine dissolved in cyclohexane
name the gaseous product of a positive ammonium test
chlorine can be f______
cl2 + 2naoh -> (/3)
calcium carbonate __________ out of lime water
if carbonate is present during the sulfate test, what forms?
during the sulfate test, add an _______ of barium nitrate
trend in halogen reactivity reducing down group 17 due to (/2)
reagent used in sulfate test (/2)
name the bleaching ions in aqueous chlorine
how many halogen solutions does chlorine react with?
oxidising agents ____ electrons
product of a positive carbonate test (/3)
when chlorine dissolves in water, name the product (/2)
ammonia gas will turn the indicator blue because ammonia is very _________
bacteria are killed by _______ (I) ions
colour of barium sulfate
HintAnswer
carbon dioxide reacts with lime water to form:
aqueous ammonia is used to identify silver halides. they are hard to identify due to their similar _______
silver halides ______ out of solution
group 2 bases can be used to treat which medical condition
a positive carbonate test forms how many products?
group 2 hydroxide used in a_____ to neutralise acid
the indicator you use to test for ammonium ions, indicates ____
halide ________ reactions show that reactivity decreases down group 7 (17)
to distinguish between colours, halogens are dissolved in __________
positive carbonate test shown by e_______
colour of silver bromide
what precipitate forms if carbonate is present during the sulfate test?
alkalinity, solubility and pH all increase down which group?
most sulfates are ______ in water
add nitrate acid (during the carbonate test) until e____ s__
product of a positive carbonate test (/3)
what colour is bromine dissolved in cyclohexane
effervescence following a carbonate test, shows that the compound ______ a carbonate
hcl is unsuitable for carbonate test as it contains _____ ion
to test for ammonium, add aqueous _______ _________
chemical formula of household bleach
astatine is rare because it is radioactive and _____ _______ quickly
reaction between chlorine and water is limited by the l___ s____ of chlorine in water
aqueous sodium hydroxide and chlorine react in a ____________ reaction
strongest oxidising agent (element)
product of a positive carbonate test (/3)
what is molecular formula of milk of magnesia?
when testing for anions. what is the first test in the sequence?
excess barium nitrate is used to remove all ______ ____ (during the second anion test)
barium carbonate is _______ in water
which silver halide is least soluble in aqueous ammonia?
chlorine in water prevents c_____ and typhoid epidemics
chlorine is a good d_______
lime water contains which calcium based compound
when testing for anions. what is the second test in the sequence?
silver iodide is _____ soluble in concentrated aqueous ammonia
in solid states, halogens form _____ _______ structures
reactivity ______ down group two
group 2 atoms all have outer subshells (in form Xz^y)
chlorine in drinking water can react with o_____ h______
silver chloride is soluble in _____ aqueous ammonia
when testing for anions. what is the third test in the sequence?
when chlorine is added to water, there is a _______ reaction
bacteria are killed by _______(I) acid
colour of silver chloride
halogens are oxidising agents and they ______ other elements
cl2 + 2naoh -> (/3)
lime water is a ________ aqueous solution of ca(oh)2
silver halides are _______ in water

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