CBSE X Chemistry Chemical Reactions and Equations
Are all decomposition reactions endothermic and are all combination reactions exothermic?
Asked by
11th March 2008
3:57 PM
Answered by Expert
CBSE X Chemistry Metals and Non Metals
Sir , m not able to understand what is nascent oxygen ? And what do you mean by decomposition of acids ? If others acids are oxidizing agent then why then liberate H2 ?
Asked by sucharitasahoo1
28th August 2017
6:25 PM
Answered by Expert
CBSE X Chemistry Metals and Non Metals
Sir , m not able to understand what is nascent oxygen ? And what do you mean by decomposition of acids ? If others acids are oxidizing agent then why then liberate H2 ?
Asked by sucharitasahoo1
28th August 2017
6:25 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
1.quick lime with water 2.Decomposing Ferrous sulphate 3.Displacement of Cu and irons sulphate 4.Double displacement of Barium chloride and sodium sulphate.for all these reactions give equations and also give the colour of product and reactant side.
Asked by aahlad06
10th January 2018
10:21 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
What type of reaction is represented by digestion of food in our body??? Explain....
Asked by Ashokuraw34
3rd February 2018
8:11 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
State observation BaCl2 is added.to Na2SO4 solution
Asked by lovemaan5500
17th March 2018
5:08 PM
Answered by Expert
ICSE IX Chemistry Chemical Changes and Reactions
Pplz answer as fast as u can
Asked by lovemaan5500
18th March 2018
5:14 PM
Answer Verified by Expert
CBSE X Chemistry Chemical Reactions and Equations
Differentiate between decomposition and combination reaction
Asked by ABHILASHA
6th April 2018
10:12 AM
Answered by Expert
CBSE X Chemistry
I COULD NOT UNDERSTAND THE CHEMICAL EQUATION- 2FeSO4 = Fe2O3 + SO2 +SO3 how is it formed and why once SO3 and then SO3. pse define how do we make equation ie. on the basi of reactivity of elements or some other basis. regards
Asked by sharma.niki.2003
15th April 2018
11:02 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
The conversion of calcium hydroxide into calcium carbonate is which type of reaction? Ca(OH)2 (aq) + CO2 (g) ---> CaCO2(s) + H2O
Asked by KONDA VENKATA KHEERTHANA
13th May 2018
10:19 AM
Answered by Expert
ICSE VIII Chemistry Chemical Reactions
differenciate between direcet combination reaction and a decomposition reaction ii. displacement reaction and a neutralization reaction
Asked by subbiahkalavathi
30th September 2018
7:25 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Why are decomposition reactions called opposite of combination reactions?
Asked by turanjay02826.sarkar
5th December 2018
12:05 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
What is Thermolytic decomposition reaction?
Asked by Kumarashish6345
27th December 2018
4:29 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Why are decomposition reactions called opposite of combination reactions
Asked by manas97976
30th December 2018
2:48 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Explain activity 1.5
Asked by kaveriadiga99
11th February 2019
8:16 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
When KClO3 is heated in the presence of manganese dioxide catalyst, it decomposes to form potassium chloride and oxygen gas. Represent this in the form of balanced chemical equation.
Asked by adev141203
13th February 2019
12:02 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Why are decomposition reactions called opposite of combination reactions?
Asked by chrisberetto2013
4th March 2019
4:16 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Describe an activity to show the decomposition reaction of ferrous sulphate in the laboratory
Asked by ssharish8503
9th March 2019
2:59 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Why are decomposition reaction are called opposite of combination reaction?
Asked by chaitanyaraj998
10th March 2019
1:09 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
when potassium chlorate (KClO3) is heated in the presence of manganese dioxide catalyst, it decomposes to form potassium chloride and oxygen gas. Represent this in the formof a balanced chemical equation
Asked by shubhamdhiman185
10th March 2019
7:46 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Q)when potassium chlorate is heated in the presence of manganese dioxide catalyst it decomposes to form potassium chloride and oxygen gas . represent this in the form of a balanced equation
Asked by ajayrath7
25th March 2019
10:34 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Compound A, the main supporter of life on Earth, needs a drop of sulphuric acid to give a rocket fuel and the supporter of combustion. Compound B, with the same components of A are colourless and kept away from sunlight, produces A and the supporter of combustion. compound C is prepared by using diamond and the supporter of combustion. This compound forms a precipate with slaked lime unless excess amount is passed into it. (a) Identify A, B and C (b) Write balanced chemical equations in each case (c) Name the type of reaction in each case (d) What is the colour of the precipitate left behind in the last case?
Asked by Shivani
25th May 2019
6:58 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
on heating green coloured ferous sulphate crystal reddish brown solid is left and smell of a gas having odour of burning sulphur is absorbed ? why is the amount of a gas collected in one of the test tube in activity 1.7 double of the amount collected in other. name these gases? give five example of ridox reaction? during the reaction of some metal with dilute hydrochloride following observations were make: the temperature of the reaction rises when aluminium is added. the reaction of sodium metal is found to be highly explosive. some bubbles of a gas are seen when lead is reacted with the acid
Asked by himanshitanda2605
30th May 2019
1:21 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Which two reactions are used in black and white photography
Asked by harjap.kaur1815
3rd July 2019
10:44 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
silver nitrate solution is kept in colored bottles.why?
Asked by ytdaggerknight09
17th July 2019
7:16 PM
Answered by Expert
CBSE VII Science Physical and Chemical Changes
what is the chemical equation of quick lime?
Asked by ezeeswati
11th September 2019
6:36 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Write two observations when lead nitrate is heated in a test tube
Asked by rajviswakarma903
18th January 2020
7:42 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
what is thermolytic decomposition reaction?
Asked by arindeep.singh
24th March 2020
3:14 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
What is the relationship between black and white photography and decomposition of silver chloride
Asked by saradamahapatra9999
31st March 2020
10:49 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Differences between combination and decomposition reaction
Asked by diyaa
11th April 2020
1:47 PM
Answered by Expert
CBSE X Science Chemical Reactions and Equations
Q-If 100g of water is decomposed, how many grams of oxygen and hydrogen are obtained?
Asked by karanbora625
15th April 2020
4:10 PM
Answered by Expert
ICSE IX Chemistry Chemical Changes and Reactions
2kclo3 on Mno2 gives 2kcl + 3O2 return with Heat is which reaction
Asked by malharshah5920.9sdatl
25th April 2020
11:07 AM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
Is Digestion a Decomposition Reaction?
Asked by adipadmakarri
30th April 2020
9:14 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
wht is decomposition reaction
Asked by santoshibehera46
22nd May 2020
10:48 PM
Answered by Expert
ICSE VIII Chemistry Physical and Chemical Changes
Write true or false: Distilled water decomposes on passing electric current.
Asked by samruddhikhedkar85.8spicertl
19th June 2020
5:29 PM
Answered by Expert
CBSE X Science Chemical Reactions and Equations
identify the type of chemical reaction.
Asked by arindeep.singh
11th July 2020
3:59 PM
Answered by Expert
CBSE X Science Chemical Reactions and Equations
from the following chemical reaction identify combination reaction, decomposition reaction, displacement reaction ZnCo3 = Zno + Co2.
Asked by anjalikashayap3
4th February 2021
9:15 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
. 2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction
Asked by Naresh
17th February 2021
7:13 PM
Answered by Expert
ICSE IX Chemistry Chemical Changes and Reactions
what do we observe when lead nitrate is heated
Asked by jailakshmitradersdnn
4th March 2021
12:00 AM
Answered by Expert
ICSE IX Chemistry Chemical Changes and Reactions
Write the observation when quicklime is added to water.
Asked by patnaikarpita14
3rd September 2021
8:13 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
State the type of chemical reactions and chemical equations that take place in the following: (i) Magnesium wire is burnt in air. (ii) Electric current is passed through water. (iii) Ammonia and hydrogen chloride gases’are mixed.
Asked by pachchigarkeyur
8th March 2022
12:05 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction.
Asked by pachchigarkeyur
8th March 2022
12:05 PM
Answered by Expert
ICSE VII Chemistry Language of Chemistry
How do we know product of decomposition reaction
Asked by honeybhatia28
16th November 2022
12:52 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
an iron metal compound 'Y', after decomposition changes into a solid brown substance and evolve a gas having characteristic odour of burning sulphur. Write the chemical reaction associated with this observation.
Asked by nehashekh291
3rd January 2023
3:11 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
On heating blue coloured powder of Copper (I) Nitrate in a boiling tube, Copper Oxide (black), Oxygen gas and a brown gas X is formed (a) Write a balanced chemical equation of the reaction. (b) Identify the brown gas X evolved. (c) Identify the type of reaction. (d) What could be the pH range of the aqueous solution of the gas X ?
Asked by susrisangita792
7th June 2023
11:54 AM
Answered by Expert
CBSE X Science Chemical Reactions and Equations
Red brown gas is release along with oxygen and lead oxide on heating lead nitrate it is example of which reaction
Asked by muskanprayagraj78
26th February 2024
5:44 PM
Answered by Expert
CBSE X Chemistry Chemical Reactions and Equations
BaCl2 +NaSO4 gives NaCl+BaSO4 is a neutalisation reaction?
Asked by prassanna.j
1st March 2024
11:59 AM
Answered by Expert
CBSE X Science Chemical Reactions and Equations
when hydrogen gas burns in presence of oxygen then water is formed and when water is electrolysed then hydrogen and oxygen gases are produced . state which type of reaction takes place
Asked by srinivasansriharinia9
1st March 2024
8:17 PM
Answered by Expert
