When potassium chlorate is heated, it decomposes into potassium chloride and oxygen gas according to the following chemical equ
2 KClO3 (5) — 2 KCl (s) + 302 (g)
If you start with 0.75 moles of potassium chlorate, what mol-mol ratio would you use to determine how many moles of oxygen are produced

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

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.)

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n