Question

what type of reaction occurs when dry hydrogen gas is reacted with lead II oxide?​

Answer 1

Answer:

Lead(II) oxide react with hydrogen to produce lead and water. This reaction takes place at a temperature of 200-350°C.

Explanation:

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Answer 2

Answer:

Let us first write the reactants and products they are given to us on the left and right sides of the equation respectively. The reactant side has copper oxide and hydrogen gas and the product side has copper and steam. Thus, we have:

H2+CuO→Cu+H2O

Now let us count the number of atoms of each element on both sides. There are two hydrogens on both sides, two copper atoms on both sides and one oxygen atom on both sides. Hence, since both sides have equal numbers of atoms, the equation is already balanced.

As we know, substances getting oxidized are the ones which gain oxygen. As we can see, hydrogen is gaining oxygen to form steam. Thus, the substance getting oxidized is hydrogen.

Similarly, we know that substances getting reduced lose oxygen. Since in this reaction, copper oxide is losing its oxygen to form copper, the substance getting reduced is copper.

Hence, the set of answers are:

H2+CuO→Cu+H2O

(i) Hydrogen

(ii) Copper

Explanation:

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