Group 1a elements (except for hydrogen) are known as the alkali metals.
a. true
b. false...
Chemistry, 26.09.2019 15:30 quintinlarrieu
Group 1a elements (except for hydrogen) are known as the alkali metals.
a. true
b. false
Answers: 1
Chemistry, 21.06.2019 16:20
Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.
Answers: 2
Chemistry, 21.06.2019 22:30
Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is ďc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.
Answers: 1
Chemistry, 22.06.2019 08:30
If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?
Answers: 2
Chemistry, 22.06.2019 13:30
How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.
Answers: 1
Biology, 12.10.2020 21:01
Mathematics, 12.10.2020 21:01
Computers and Technology, 12.10.2020 21:01
Mathematics, 12.10.2020 21:01
Biology, 12.10.2020 21:01
Business, 12.10.2020 21:01
History, 12.10.2020 21:01
Mathematics, 12.10.2020 21:01
Mathematics, 12.10.2020 21:01
Chemistry, 12.10.2020 21:01
Mathematics, 12.10.2020 21:01
History, 12.10.2020 21:01