What is the value of q when the solution contains 2.00×10−2 m ca2+ and 3.00×10−2m cro42−? express your answer numerically?

Answer is: value of Q is 6·10⁻⁴.

Chemical reaction: CaCrO₄(s) → Ca²⁺(aq) + CrO₄²⁻(aq).

[Ca²⁺] = 0,02 M.
[CrO₄²⁻] = 0,03 M.

Q = [Ca²⁺] · [CrO₄²⁻].

Q = 0,02 M · 0,03 M.

Q = 0,0006 M².

Q is the solubility product when the system is not at equilibrium.

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.