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ICSE Class 8 Answered

How to remember the colours of the reactant and product in chemical reactions. 
Asked by lk.26111970 | 03 Feb, 2019, 04:56: PM
answered-by-expert Expert Answer
 
There are certain metal salts which give colour as follows:
 
Metal Ion  colour
Co2+ Pink
Cu2+ Blue-green
Fe2+ olive green
Ni2+ bright green
Cr3+ Violet
Mn2+ pale pink
Answered by Ramandeep | 05 Feb, 2019, 04:18: PM

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ICSE 8 - Chemistry
  Balance the following  chemistry equations :   1) Fe + O2 -> Fe2O3 2) H2 + O2 -> H2O 3) Na + Cl2 -> NaCl 4) N2 + H2 -> NH3 5)  CH4 + O2 -> CO2 + H2O
Asked by n.tara345 | 16 Aug, 2023, 06:50: PM
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ICSE 8 - Chemistry
what is the valency of Copper?
Asked by nihalcrj2006 | 27 Jan, 2021, 11:37: AM
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ICSE 8 - Chemistry
Why we use copper of charge +2 charge in most of the reactions while there is copper of charge +1 is also there.
Asked by mishragayatri483 | 27 Dec, 2020, 06:11: PM
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ICSE 8 - Chemistry
The composition of a substance ________________ during chemical change
Asked by sp_colney | 01 Aug, 2020, 04:14: PM
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ICSE 8 - Chemistry
KCLO3 when given heat forms KCL + O2 How does it form
Asked by manishpatil37.8spicertl | 29 Jun, 2020, 11:14: AM
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ICSE 8 - Chemistry
Why does the sodium sulphate solution and barium chloride solution reacts as white solution.
Asked by arushsoni16.8spicertl | 14 May, 2020, 11:25: AM
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ICSE 8 - Chemistry
Write balanced molecular equation of  Calcium + water ➡ calcium hydroxide + hydrogen
Asked by tirthabasibagh77 | 16 Feb, 2020, 07:01: PM
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ICSE 8 - Chemistry
What are double displacement reactions
Asked by Nidhimalhotra888 | 06 Dec, 2019, 04:31: PM
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ICSE 8 - Chemistry
 the white and anhydrous salt that become green upon addition to water is ---
Asked by Sandeephundal574 | 16 May, 2019, 09:56: PM
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ICSE 8 - Chemistry
Explain what happens when A mixture of hydrogen and nitrogen is passed over heated iron catalyst A mixture of carbon monoxide and sulphur vapours are passed in a hot tube Carbon monoxide reacts with chlorine in presence of sunlight and platinum
Asked by divyanshchaubey | 17 Feb, 2019, 11:19: AM
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