combustion of magnesium in air 1.reaction 2. no.of reactants 3. no.of products 4.type of chemical reaction...
Answers
Answer:
Consider the following situations of daily life and think what happens
when –
milk is left at room temperature during summers.
an iron tawa/pan/nail is left exposed to humid atmosphere.
grapes get fermented.
food is cooked.
food gets digested in our body.
we respire.
In all the above situations, the nature and the identity of the initial
substance have somewhat changed. We have already learnt about physical
and chemical changes of matter in our previous classes. Whenever a chemical
change occurs, we can say that a chemical reaction has taken place.
You may perhaps be wondering as to what is actually meant by a
chemical reaction. How do we come to know that a chemical reaction
has taken place? Let us perform some activities to find the answer to
these questions.
Figure 1.1
Burning of a magnesium ribbon in air and collection of magnesium
oxide in a watch-glass
Combustion of Magnesium in air
1. Reaction :
2. No of Reactants :
- In the above reaction, there are 2 reactants. (Magnesium and Oxygen)
3. No of products :
- One
- Magnesium and oxygen reacts together and formed Magnesium oxide as a product.
4. Type of chemical reaction :
- Combustion reaction
Chemical reaction: It is a process in which one or more reactants react to form a new product is called a chemical reaction.
Types of Chemical reactions:
- Combination reaction
- Decomposition reaction
- Displacement reaction
- Redox reaction (Oxidation and reduction reactions)
- Exothermic and Endothermic Reactions.