Advertisements
Advertisements
Question
Balance the following equation :
Fe + H2O → Fe3O4 + H2
Advertisements
Solution
3 Fe + 4H2O → Fe3O4 + 4H2
APPEARS IN
RELATED QUESTIONS
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron pipes coated with zinc do not get rusted easily.
FILL IN THE BLANK
In a double decomposition precipitation reaction both the reactants must be ............ soluble.
Fill in the blank
A new substance is always formed in a _______ change.
Complete the statement by filling the gap using an appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
An ______ is drawn in between the reactants and products while writing the equation for a chemical reaction.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
Define the following term:
Precipitate
Give reason for the following:
Blue solution of copper sulphate changes to green when a piece of iron is added to this solution.
Name: A brown gas
What do you observe when H2S is passed through a lead nitrate solution.
Give a word equation for the following reaction.
Two gases which combine to give a solid.
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc nitrate to nitrogen dioxide
______ is not a chemical change.
Limestone contains ______ mainly.
What is the role of a catalyst in a chemical reaction?
A reaction between an acid and a base is called ______.
The changes in which new substance with new chemical properties are formed are ______.
Burning of paper is the best example of ______ change.
Define the following term:
Chemical change
