1. What is molecule? Explain with example.
2. Write down the atomicity for following:
(A)S8
(B)CO2
(C) P4
(d) H2O
3. Write down the common name of following
(a)CaO
(b) CuSO4.5H2O
(c) NaOH
(d) H2SO4
4. Write down the chemical formula of following
(a) calcium nitrate
(b) calcium phosphate
5. What is ion ? Define cation and anion.
please answer me all the five questions
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Answers
Answer:
1. A molecule is a particle made up of two or more atoms that are chemically bonded together; the number of atomic nuclei making up a molecule is a determinate number. For example, HCl(g) is a molecule made of one hydrogen atom bonded to one chlorine atom. It is made of two atoms and is called a diatomic molecule.
5. An ion is an atom or molecule that has a net electrical charge. Since the charge of the electron is equal and opposite to that of the proton, the net charge of an ion is non-zero due to its total number of electrons being unequal to its total number of protons.
If an atom, or atoms, has a balanced number of electrons (negative charge) and protons (positive charge) they are neutral overall. However, if they are not balanced, they will be charged. These charged species are called ions.
Answer:
answer of first is a molecule is a made up of two or more atoms that are chemically bonded together. For example HCl