Fossil fuels are also known as__
this is a crossword btw...
Answers: 1
Chemistry, 21.06.2019 19:00
0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?
Answers: 1
Chemistry, 22.06.2019 00:00
Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.
Answers: 1
Chemistry, 22.06.2019 11:40
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.)
Answers: 1
Mathematics, 29.04.2021 04:40
Social Studies, 29.04.2021 04:40
Mathematics, 29.04.2021 04:40
Computers and Technology, 29.04.2021 04:40
Chemistry, 29.04.2021 04:40
Biology, 29.04.2021 04:40
Advanced Placement (AP), 29.04.2021 04:40
Mathematics, 29.04.2021 04:40
Mathematics, 29.04.2021 04:40