saiyada

This page lists questions and answers that were posted by visitors named saiyada.

Questions

The following questions were asked by visitors named saiyada.

Answers

The following answers were posted by visitors named saiyada.

calculate the percent my mass of zinc in the post-1982 penny using the following information: total mass of each penny is 2.500g, density of copper is 8.96g/ml, density of zinc is 7.14g/ml and the mass of a penny if it were 100% copper would be 3.11g
13 years ago