When h forms a bond with h2o to form hydronium ion, h3o , this bond is called a coordinate covalent bond because question 16 options: the oxygen no longer has eight electrons surrounding it. both bonding electrons come from the oxygen atom. it is an especially strong bond. the electrons are equally shared?

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

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.)

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2