Science
Write one chemical equation each for the chemical reaction in which the following have taken place :
(a) Change in colour
(b) Change in temperature
(c) Formation of precipitate
Mention colour change/temperature change (rise/fall)/compound precipitated along with equation.
Related Questions
In the given circuit calculate the power consumed in watts in the resistor of 2 Ω:
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(b) How is a uniform magnetic field in a given region represented? Draw a diagram in support of your answer
(a) The pH of a sample of tomato juice is 4.6. How is this juice likely to be in taste? Give reason to justify your answer.
(b) How do we differentiate between a strong acid and a weak base in terms of ion-formation in aqueous solutions?
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(a) Why is respiratory pigment needed in multicellular organisms with large body size?
(b) Give reasons for the following :
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- The diaphragm flattens and ribs are lifted up when we breathe in.
- Walls of alveoli contain an extensive network of blood vessels.