Using the name of the ionic compound, select the appropriate chemical formula. Use the periodic table that has been provided. Click here to access the common polyatomic ion sheet.
Sodium acetate
NaC2H2O2
SC2H302
Na2C2H302

Which element would mostly likely have an electron affinity measuring closest to zero

Compare and contrast refraction of light and sound will give brainliest

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)