subject
Chemistry, 21.09.2020 15:01 smithad382

Starting in 1982, the Federal Government made pennies out of zinc and used only a copper coating. Would the density of these pennies be less than the density of zinc, greater than the density of zinc, or exactly equal to the density of zinc?

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 06:30
The minerals found in bones are deposited by living cells called
Answers: 1
question
Chemistry, 22.06.2019 08:30
Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size
Answers: 1
question
Chemistry, 22.06.2019 10:30
Which characteristics can be used to differentiate star systems? check all that apply.
Answers: 2
question
Chemistry, 22.06.2019 17:10
In which block of the periodic table is uranium (u) found? s blockd blockp blockf block
Answers: 1
You know the right answer?
Starting in 1982, the Federal Government made pennies out of zinc and used only a copper coating. Wo...
Questions
question
Social Studies, 31.07.2019 08:00
question
History, 31.07.2019 08:00
Questions on the website: 13722367