Chemistry, 01.08.2019 03:00 maciemarklin3032
Braddy connected the lose wire to the battery and created an electromagnet. he picked up 45 thumb tacks with his electromagnet, though his goal was to pick up 50 thumb tacks. what could braddy do to increase the strength of his electromagnet and pick up more thumbtacks? a) use fewer coils of wire. b) use a screw instead of a nail. c) use two batteries instead of one. d) replace the nail with a piece of steel.
Answers: 2
Chemistry, 22.06.2019 02:50
Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.
Answers: 3
Chemistry, 22.06.2019 09:10
Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons
Answers: 3
Chemistry, 22.06.2019 13:10
Which electron configuration represents the electrons in an atom of sodium in the ground state at stp
Answers: 1
Braddy connected the lose wire to the battery and created an electromagnet. he picked up 45 thumb ta...
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