Total energy of an isolated system remains constant throughout time; this is referred to as conservation of energy.
The answer is B: Sound waves cause parts of the ear to vibrate until the waves are converted to electrical signals, which are sent to the brain.
It would of been nice if you were to post your question so others could actually answer it.
The balanced molecular equation is Na₂S(aq) + ZnSO₄(aq) → Na₂SO₄(aq) + ZnS(s)
The total ionic equation is 2Na⁺(aq) + S²⁻(aq) + Zn²⁺(aq) + SO₄²⁻(aq) → 2Na⁺(aq) + SO₄²⁻(aq) + ZnS(s)
The net ionic equation is S²⁻(aq) + Zn²⁺(aq) → ZnS(s)
<h3>
what is precipitation?</h3>
Any liquid or frozen water that condenses in the atmosphere and falls to the ground is known as precipitation. Snow, sleet, and rain are just a few of the variations. One of the three main processes that make up the global water cycle is precipitation, along with evaporation and condensation.
Water vapor in the clouds condenses into increasing-sized droplets of water, forming precipitation. Droplets fall to the Earth when they are sufficiently heavy. The water droplets may freeze to produce ice if a cloud is colder, as it would be at higher elevations. Depending on the temperature within the cloud and at the Earth's surface, these ice crystals eventually discharge to the Earth as snow, hail, or rain.
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