
 👍 0
 👎 0
Respond to this Question
Similar Questions

Science
My physical science class is doing an experiment on the mass of pennies. I hypothesized that newer pennies would have less mass because cheaper materials are being used. I found that before 1982, pennies were made from 95%
asked by Beth on September 8, 2007 
maths
Class 5G is having a pizza party. Mrs Baker asked all the children to bring in 50c for their share of the pizza.The next day all the girls came with their 50c but Mrs Baker noticed that every girl had brought their 50c using
asked by JaredN on July 30, 2007 
Chemistry
A penny has a mass of 2.5 g and the moon has a mass of 7.35*10^22kg. What is the mass of 1 mole of pennies? How many moles of pennies have a mass equal to the mass of the moon?
asked by Mal on March 23, 2011 
Chemistry
A penny has a mass of 2.5 g and the moon has a mass of 7.35*10^22kg. What is the mass of 1 mole of pennies? How many moles of pennies have a mass equal to the mass of the moon?
asked by Mal on March 23, 2011 
science
Donelle measures the mass of 10 pennies and records her measurements in kilograms. She wants to determine the mean mass of her pennies. What should Donelle do to make it easier to calculate the mean mass of her pennies? Use a
asked by dianni on November 6, 2018 
9th grade (math)
pennies are kept in a jar the mass of the jar is 20 g the mass of each panny is 5g le t the varible p represent the total mass of pennis and the jar. let the variable n represent the number og pennys. 1a. write an equation that
asked by jacky on October 17, 2009 
math
pennies are kept in a jar the mass of the jar is 20 g the mass of each panny is 5g le t the varible p represent the total mass of pennis and the jar. let the variable n represent the number og pennys. 1a. write an equation that
asked by josh on October 17, 2009 
algebra
Really need help with one problem. The table shows the annual consumption of cheese per person in the United States for selected years in the 19th century. What cubic model best fits this data? Year Pounds Consumption 1915 4.156
asked by lee on November 28, 2012 
Chemistry
hi! this question confuses me. "Pennies have mass of approximately 2.5 g. How many pennies are needed to make a mole of copper?" if anyone can help, that would be amazing.
asked by Carly on January 14, 2010 
chemistry
A 1.857 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.540 grams of KI and 50.00 mL of a 0.00912 M KIO3
asked by Sparkle on May 2, 2013