Which of the following can cause a short circuit?

Loose Connections.

Aging & Outdated Wiring.

Faulty Appliance Wiring.

Damaged Insulation.

Explanation:

Common Reasons for Short Circuits

Loose Connections. If wire attachments loosen and sag, two wires may encounter each other and create a short circuit. ...

Aging & Outdated Wiring. Wires and wire insulation will experience wear and tear over time. ...

Faulty Appliance Wiring. ...

Damaged Insulation.

Explanation:

short cir·cuit

/SHôrt ˈsərkət/

Learn to pronounce

noun

in a device, an electrical circuit of lower resistance than that of a normal circuit, typically resulting from the unintended contact of components and consequent accidental diversion of the current.

"an office block had been set on fire by an electrical short circuit"

verb

(with reference to an electrical device) malfunction or fail, or cause to do this, as a result of a short circuit across it.

"the birds caused the electricity supply to short-circuit"

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"