Answer:
a. single replacement
Explanation:
Chemical equation:
Cd + H₂SO₄ → CdSO₄ + H₂
In given reaction Cd replace the hydrogen and form cadmium sulfate and hydrogen gas.
Single replacement:
It is the reaction in which one elements replace the other element in compound.
AB + C → AC + B
Other options are incorrect because,
Combustion:
In combustion reaction substances are burn in the presence of oxygen and form carbon dioxide and water.
Synthesis reaction:
It is the reaction in which two or more simple substance react to give one or more complex product.
A + B → AB
Double replacement:
It is the reaction in which two compound exchange their ions and form new compounds.
AB + CD → AC +BD
Answer:
The electrons in an atom move around the nucleus in regions known as electron shells.
Answer:
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Answer:
The BP increases in temperature as you move down the halogen group ( group 7)
Answer:
H2 bond is stronger
Explanation:
In this question, we are trying to make a connection between bond dissociation energy and the strength of a bond.
First of all, we must know that any bond that is quite stable must have a large bond dissociation energy. This means that more energy is supplied in order to cleave the bond.
A high bond dissociation energy actually implies that a bond is of low energy and consequently stable.
