At a certain temperature, the solubility of zinc(i) chromate is (7.0x10^-5) m. what is the ksp?

Ksp = 4.9 E-9

Explanation:

solubility:       S            S             S

⇒ Ksp = [ Zr²+ ] * [ CrO4²- ]

⇒ Ksp = S * S = S²

⇒ Ksp = ( 7.0E-5)²

⇒ Ksp = 4.9E-9

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms