What elements are found in a 9 volt battery

Chemistry

1 answer:

goldfiish [28.3K]4 years ago

7 0

9 volt batteries have lithium as an anode.

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6. Which of the following statements correctly describes what happens to the diaphragm during an

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Answer is B.

As the diaphragm contracts and flattens, it increases the volume of the thorax where the lungs are located. This results in a decrease in pressure (Boyle’s Law, if you know it) that creates a pressure gradient from outside to inside. This is what causes air to move into the lungs.

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3 years ago

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What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron?

vazorg [7]

Answer:

What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron is energy.

Explanation:

The normal state of the atoms, where all the electrons are occupying the lowest possible energy level, is called ground state.

The valence electrons are the electrons that occupy the outermost shell, this is the electrons in the highest main energy level (principal quantum number) of the atom.

So, a nonvalence electron occupies an orbital with less energy than what a valence electron does; in consequence, in order to a nonvalence electron jump from its lower energy level to the higher energy level of a valence electron, the former has to absorb (gain) energy.

This new state is called excited state and is temporary: the electron promoted to the higher energy level will emit the excess energy, in the form of light (photons), to come back to the lower energy level and so the atom return to the ground state.

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4 years ago

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What occurs when a magnesium atom becomes a magnesium ion

Karo-lina-s [1.5K]

The electrons are lost.

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The American Heart Association recommends to eat no more than 2,301mg of sodium per day. Convert the mass of

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The mass of 2,301 grams of sodium in ounces is 0.0811757609 ounces.