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shusha [124]
3 years ago
5

A student is building an electrical circuit. Which material should she choose for wires, and why.

Chemistry
1 answer:
r-ruslan [8.4K]3 years ago
3 0

D. A metal such as copper, because its atom have very mobile electrons         - A-p-e-x verified!

<u>Have a Great Day!</u>

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John placed a number of small stones into a plastic container of water and froze it. Stay what kind of mixture john has
Ganezh [65]
Think, does a chemical reaction take place?  Do the rocks and/or the water undergo any chemical changes?
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2 years ago
A satellite and a hockey puck are alike because they illustrate Newton's first law of motion.
lutik1710 [3]

Answer:

It would be True

Explanation:

Because they both have the same push of gravity. Gravity affects all objects equally. If you drop an egg and a watermelon at the same time they would both collide with the floor at the same time.

8 0
2 years ago
A helium filled ballon had a volume of 8.50 L on the ground at 20.0 C and a pressure of 750.0 Torr. After the ballon was release
Marrrta [24]

Answer:

V_2=12.1L

Explanation:

Hello!

In this case, according to the given data of volume, pressure and temperature, it is possible to infer this problem can be solved via the combined gas law:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

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T_1=20+273=293K\\\\T_2=-40+273=233K

Then, we obtain:

V_2=\frac{P_1V_1T_2}{T_1P_2}\\\\V_2=\frac{0.987atm*8.50L*233K}{293K*0.550atm}\\\\V_2=12.1L

Best regards!

5 0
2 years ago
A nucleus with four protons has total positive charge
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It would have a charge of 4+
7 0
2 years ago
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Svetlanka [38]
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8 0
3 years ago
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