Chemistry, 27.06.2019 23:10 joceeeeelyn2899
How many moles of nacl could be made by combining 20,000 moles of na with 2 moles of ci? a 20,000 moles naci 2 moles naci b. 1 mole nacl none of the above select the best answer from the choices provided a b c d
Answers: 3
Chemistry, 22.06.2019 07:30
The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.
Answers: 1
Chemistry, 22.06.2019 08:30
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
Answers: 1
Chemistry, 22.06.2019 20:40
What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.
Answers: 1
How many moles of nacl could be made by combining 20,000 moles of na with 2 moles of ci? a 20,000 m...
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