Zinc forms many different salts including zinc sulfate, zinc chloride and zinc fluoride.
(a)
People who have a zinc deficiency can take hydrated zinc sulfate
(ZnSO..XH2O) as a dietary supplement.
A student heated 4.38 g of hydrated zinc sulfate and obtained 2.46 g of
anhydrous zinc sulfate.
Use these data to calculate the value of the integer x in ZnSO. XH2O
Show your working.

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.