Constructing a model of an electriedras
What you need 2 batteries 1.5 v, electrical tape, socket, flashlight bulb
15, two 25 em insulated wire with end wrapped, 1/8
size illustration board, scissors
1. On the illustration board, arrange a drou so light bulb
2. Screw the bulb into a socket, Connect a copper wire to each of the secret terminals
3. Connect a piece of copper wire to the switch, Connect the loose end of the wire to the negative end of the
4. Connect one end of the copper wire by winding (which is atached to the secret to the peritive and the
battery, Connect the other end of the socker to the winch Did the bulb light?
5. Fasten the wires, batteries, and bulb into the illustration using the electrical to secure the circun and connections
6. Close the open parts of the watch. What happened to the bulb Why?
7. switch it off. What happened to the bulb
Answers: 3
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Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)
Answers: 1
Chemistry, 22.06.2019 12:00
Which of the following units is not an official si unit? mole liter kilogram ampere
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Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 1
Constructing a model of an electriedras
What you need 2 batteries 1.5 v, electrical tape, socket,...
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