Chemistry, 07.11.2019 09:31 solizpaco7124
Aballoon contains 6.0 moles of helium. a hole lets 4.0 moles of helium escape the balloon. how many atoms of helium remain in the balloon?
a.2.0 atoms
b.1.2 x10^24 atoms
c.6.02 x 10^24 atoms
d.6.0 atoms
Answers: 1
Chemistry, 22.06.2019 05:30
Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.
Answers: 1
Chemistry, 22.06.2019 14:30
100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
Answers: 1
Chemistry, 23.06.2019 00:30
The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils
Answers: 2
Aballoon contains 6.0 moles of helium. a hole lets 4.0 moles of helium escape the balloon. how many...
English, 01.02.2021 15:50
Mathematics, 01.02.2021 15:50
Biology, 01.02.2021 15:50
English, 01.02.2021 15:50
Chemistry, 01.02.2021 15:50
Chemistry, 01.02.2021 15:50
History, 01.02.2021 15:50
Mathematics, 01.02.2021 15:50