Chemistry, 12.09.2021 04:50 JanaMiqdad7702
A collection of pennies was investigated. 10.00% were found to have been minted in San Francisco with an average mass of 2.15 g and 90.00% we’re minted in in Philly with an average mass of 2.156 g. What was the average mass of pennies in this sample? Give the correct answer with the proper amount of significant figures
Answers: 3
Chemistry, 23.06.2019 00:30, cashkidd2200
There are approximately 15 milliliters (ml) in 1 tablespoon (tbsp). what expression can be used to find the approximate number of milliliters in 3 tbsp?
Answers: 1
Chemistry, 23.06.2019 19:30, marlandwilliams10
Which of the following is a polyatomic ion? a. calcium, ca2+ b. carbide, c4- c. sulfate, so4 d. selenide, se2-
Answers: 1
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