Chemistry, 10.05.2021 17:20 vdkgknsdg4817
A post 1982 penny has mass a mass of 2.500 grams. The penny composed of 2.4375 g zinc and copper 0.0625
Answers: 2
Another question on Chemistry
Chemistry, 22.06.2019 08:30
How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same
Answers: 2
Chemistry, 22.06.2019 13:30
Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.
Answers: 2
Chemistry, 22.06.2019 17:00
Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
Answers: 1
Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
Answers: 2
You know the right answer?
A post 1982 penny has mass a mass of 2.500 grams. The penny composed of 2.4375 g zinc and copper 0.0...
Questions
History, 18.12.2019 10:31
English, 18.12.2019 10:31
Mathematics, 18.12.2019 10:31
Mathematics, 18.12.2019 10:31
Health, 18.12.2019 10:31
