Chemistry
State the main characteristics of chemical reactions. Give at least one example in each case.
Related Questions
Why is energy involved in a chemical change?
A metal X (used for galvanization) is immersed in the aqueous solution of a blue salt YSO4. Metal Y is deposited on the surface of the solution and a strip of metal X dissolves.
(a) Predict the metal X.
(b) What type of reaction is it?
(c) Write the word equation for this reaction and balance it.
State the effects of endothermic and exothermic reactions on the surroundings with examples.