Recent questions and answers in Chapter 3: Chemical reactions and equations

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1 answer 625 views

Identify from the following reactions the reactants that undergo oxidation and reduction

answered May 25, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 1.2k views

5. Observe the following picture a write down the chemical reaction with explanation.

answered May 23, 2021 in Chapter 3: Chemical reactions and equations by anonymous

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1 answer 621 views

d. It is recommended to use air tight container for storing oil for long time

answered May 23, 2021 in Chapter 3: Chemical reactions and equations by anonymous

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1 answer 189 views

c.While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory,

answered May 23, 2021 in Chapter 3: Chemical reactions and equations by anonymous

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1 answer 439 views

b. It takes time for pieces of Shahabad tile to disappear in HCl, but its powder disappears rapidly

answered May 23, 2021 in Chapter 3: Chemical reactions and equations by anonymous

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1 answer 490 views

a.When the gas formed on heating limestone is passed through freshly prepared lime water, the lime water turns milky

answered May 23, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 187 views

d. Displacement reaction 3. Explain the following terms with examples.

answered May 23, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 303 views

c. Balanced equation 3. Explain the following terms with examples.

answered May 23, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 149 views

b. Combination reaction 3. Explain the following terms with examples.

answered May 23, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 134 views

Endothermic reaction

answered May 13, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 1.1k views

e. Explain the similarity and difference in two events, namely adding NaOH to water and adding CaO to water.

answered May 11, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 2.3k views

d. Explain the types of reaction with reference to oxygen and hydrogen. Illustrate with examples.

answered May 11, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 667 views

c. Explain the term reactant and product giving examples.

answered May 11, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 278 views

b. How can the rate of the chemical reaction, namely, decomposition of hydrogen peroxide be increased?

answered May 11, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 397 views

a. What is the reaction called when oxidation and reduction take place simultaneously?

answered May 11, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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1 answer 718 views

1. Choose the correct option from the bracket and explain the statement giving reason. (Oxidation, displacement

answered May 10, 2021 in Chapter 3: Chemical reactions and equations by Doubtly (98.9k points)

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