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katrin [286]
3 years ago
9

What must be true for a circuit to light a bulb?

Chemistry
2 answers:
anygoal [31]3 years ago
5 0
Power source (battery/energy) a copper/metal wire, and then a receiver
Alex3 years ago
4 0
You must have something that is a power source like a battery so it will work and you have to have wire connect it so it the power will transfer to whatever the object is like a lightbulb
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Examine the scenario.
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Answer:

The system will try to balance the change by shifting toward the exothermic reaction, and the rate of the forward reaction will increase.

Explanation:

To balance the external cooling system has to give out heat so exothermic reaction will occur .

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3 years ago
What group is the element barium(Ba) In?<br>A. 1<br>B. 6<br>C. 56<br>D. 4​
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3 years ago
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Bess [88]

Answer:

Explanation:

<u>Manganese (VII) ion (an anion) has the formula MnO₄⁻</u>. A polyatomic ion is an ion that is made up of more than one atom. For example, MnO₄⁻ and NH₄⁺. Since the ion provided in the question is an anion, the polyatomic ion that would react with it will have to be a cation (positively charged).

<u>The polyatomic cation that will react with MnO₄⁻ to form a neutral compound is NH₄⁺ (ammonium ion) to form NH₄MnO₄ (Ammonium permanganate).</u>

6 0
3 years ago
What volume would a 0. 250 mole sample of h2 gas occupy if it had a which a a pressure of 1. 70 atm and a temperature of 35 C?
frosja888 [35]

The volume of  0. 250 mole sample of H_{2} gas occupy if it had a pressure of 1. 70 atm and a temperature of 35 °C is  3.71 L.

Calculation,

According to ideal gas equation which is known as ideal gas law,

PV =n RT

  • P is the pressure of the hydrogen gas  = 1.7 atm
  • Vis the volume of the hydrogen gas = ?
  • n is the number of the hydrogen gas = 0.25 mole
  • R is the universal gas constant = 0.082 atm L/mole K
  • T is the temperature of the sample = 35°C = 35 + 273 = 308 K

By putting all the values of the given data like pressure temperature universal gas constant and number of moles in equation (i) we get ,

1.7 atm×V = 0.25 mole ×0.082 × 208 K

V = 0.25 mole ×0.082atm L /mole K × 308 K /1.7 atm

V = 3.71 L

So, volume of the sample of the hydrogen gas occupy is  3.71 L.

learn more about ideal gas equation

brainly.com/question/4147359

#SPJ4

4 0
2 years ago
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