What happens when magnesium ribbon burns in air?
1•>What happens when magnesium ribbon burns in air?
2•>What happens when quick lime is aded to the water?
3•>Write three equations for decomposition reaction where energy is supplied in [1] the form of heat, light and electricity?
4•>What is the significance oft, or = in a chemical equation? Perisible
5•>Why displacement reaction is also known as single displacement reaction?
6•>What does the symbol (aq) represent in a chemical equation? aqua» Selilis
7•>Balance the chemical equation and identify the type of chemical
reaction:HgO(s) -> (Heat) -> Hg() + 0 2 (g)
8•>What happens when a dilute solution of ferrous sulphate was gradually added to a beaker containing acidified permanganate solution. Explain the reason.
9•>During the reaction of some metals with dilute hydrochloric acid, the observation was made:Silver metal does not show any change Explain the observations by giving a suitable reason.
10•> In the reaction, Be2 C + xH 2 O -> Be(OH) 2 + CH 4 Write the values of x and y.
11•>Name the type of reaction: Iron reacts with chlorine to form ferric chloride..
12•>Write the balanced chemical equation for the following reaction and identify the type of reaction.Potassium bromide (aq) + Barium iodide (aq) -Potassium iodide (aq) + Barium bromide (s)
13•>Which gas is evolved when Znreacts with hydrochloric acid?
12•>Indicate the oxidizing and reducing agent in the reaction.
2Na + CI2- 2 NaCI
15•>On mixing solutions of lead (I) nitrate and potassium iodide, (i) what is the colour of the precipitate formed? Name the compound. (it) write a balanced chemical reaction. (li) What kind of chemical reaction does it represents?
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