B.......it is believed that moon was formed because a huge body struck earth to break it and form moon......it can be proved due to geological similarities between earth and moon.
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<span>the attraction to the positive end of a water molecule.hope this helps you</span>
Matter<span> in the plasma </span>state<span> has variable volume and shape, but as well as neutral atoms, it contains a significant number of ions and electrons, both of which can move around freely. Plasma is the </span>most common<span> form of visible </span>matter<span> in the universe. The four fundamental </span>states of matter<span>.</span>
The solubility product expressions for the CuBr, ZnC₂O₄ and Ag₂CrO₄ will be represented as [Cu⁺][Br⁻], [Zn²⁺][C₂O₄²⁻] and [Ag⁺]²[CrO₄²⁻] respectively.
<h3>What is solubility product expressions?</h3>
The solubility product expression or constant is denoted by Ksp, and it is the equilibrium constant for a solid substance dissolving in an aqueous solution.
- Balanced chemical reaction of CuBr is CuBr → Cu⁺ + Br⁻ and value of Ksp will be written as Ksp = [Cu⁺][Br⁻].
- Balanced chemical reaction of ZnC₂O₄ is ZnC₂O₄ → Zn²⁺ + C₂O₄²⁻ and value of Ksp will be written as Ksp = [Zn²⁺][C₂O₄²⁻].
- Balanced chemical reaction of Ag₂CrO₄ is AgCrO₄ → 2Ag⁺ + CrO₄²⁻ and value of Ksp will be written as Ksp = [Ag⁺]²[CrO₄²⁻].
Hence balanced equations with solubility product expressions will be shown above.
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Answer: The atomic mass of this element in atomic mass units is 20.3
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number 
of particles.
To calculate the number of moles, we use the equation:
Let atomic mass of element is X amu
atoms weigh = X amu
1 atom weigh = 
Atomic mass of this element in atomic mass units is 20.3
