what are the best five college in AP for intermedite mpc students
what is photosynthesis and respiration
i will teach him to passive voice
gamingranger2020
Asked:
December 2022
What is rancidity? Mention any two ways by which rancidity can be prevented
gamingranger2020
Asked:
December 2022
.(a) Why is respiration considered as an exothermic reaction? (b) Define the terms oxidation and reduction. (c) Identify the substance that is oxidised and reduced in the following reaction.
gamingranger2020
Asked:
December 2022
.A Name the type of chemical reaction represented by the following equation:
What is meant by a chemical reaction?
gamingranger2020
Asked:
December 2022
You have two solutions A and B. The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic ?
gamingranger2020
Asked:
December 2022
Why does the colour of copper sulphate solution change when an iron nail is dipped in it? Write two observations.
gamingranger2020
Asked:
December 2022
You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube ?
gamingranger2020
Asked:
December 2022
Translate the following statement into chemical equation and then balance it Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate. State the two types in which this reaction can be classified.
gamingranger2020
Asked:
December 2022
What is meant by skeltal type chemical equation? What does it represent? Using the equation for electrolytic decomposition of water, differentiate between a skeltal chemical equation and a balanced chemical equation.
gamingranger2020
Asked:
December 2022
Write balanced chemical equation for the reactions that take place during respiration. Identify the type of combination reaction that takes place during this process and justify the name. Give one more example of this type of reaction.
gamingranger2020
Asked:
December 2022
Giving an example list two information which make a chemical equation more useful (informative).
gamingranger2020
Asked:
December 2022
(a) Define a balanced chemical equation. Why should an equation be balanced? (b) Write the balanced chemical equation for the following reaction: (i) Phosphorus burns in presence of chlorine to form phosphorus penta chloride. (ii) Burning of natural gas. (iii) The process of respiration.
gamingranger2020
Asked:
December 2022
(a) Write one example for each of decomposion reaction carried out with help of (i) Electricity (ii) Heat (iii) Light (b) Which of the following statements is correct and why copper can displace silver from silver nitrate and silver can displace copper from copper sulphate solution.