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'Copper' pennies actually contain very

How much pennies could pennies become pennies just like mother pennies and father pennies with alot of pennies without a little
1. 1 answer
2. asked by Pennies
3. 423 views
My physical science class is doing an experiment on the mass of pennies. I hypothesized that newer pennies would have less mass
1. 3 answers
2. asked by Beth
3. 1,181 views
Peter has 5 pennies. His mom gives him 3 more.How many pennies does Peter have in all? A ten-frame has 5 counters. (1 point)
1. 1 answer
2. 27 views
hi! this question confuses me."Pennies have mass of approximately 2.5 g. How many pennies are needed to make a mole of copper?"
1. 2 answers
2. asked by Carly
3. 1,588 views
A man places 1 penny on the square of a chess board, 2 pennies on the next square, 4 pennies on the third square, and continues
1. 1 answer
2. 33 views
Calcium chloride is used to make pickles. The calcium atom transfers electrons to chlorine atoms, leading to the formation of
1. 1 answer
2. 17 views
There are 3.20e22 atoms of copper in the outer shell of pennies. How many grams of copper is this?
1. 2 answers
2. asked by Anon-mouse
3. 1,106 views
Before 1982 U.S pennies were made of solid copper. As the price of copper rose,the U.S mint switched to a composition that is
1. 1 answer
2. asked by Boriqualissa
3. 633 views
Jake puts pennies into a jar each morning and lets his brother take haft of the pennies out each morning. Jake put 10 pennies
1. 3 answers
2. asked by Laruen
3. 569 views
Kesha had only pennies and dimes in her change purse. When she counted out her change, she had 64¢. If she had 6 times as many
1. 1 answer
2. 81 views