Answer: Evaporation - Liquid to a gas
Condensation - Gas to Liquid
Freezing - Liquid to Solid
Melting - Solid to Liquid
Sublimation - Solid to Gas & Beleive It Or Not There Is One Called
Deposition (sometimes called Desublimation) - Gas to Solid
Answer:
D. The stronger the forces, the more heat that must be added to boil
the liquid
Explanation:
The intermolecular forces hold the molecules together and so require energy to break them. When a substance changes states, it's not the atoms that separate from other atoms, it's molecules separating from molecules. The stronger the intermolecular forces, the more energy is required to break the intermolecular forces
Answer:
c. Only certain energies are allowed for the electron in a hydrogen atom
Explanation:
Emission spectrum are produced when the excited electron in a atom release the energy in the form of photons to come to ground state. These photons are of different wavelengths depending on the excitation state of emitting electron or transition of electron. These electromagnetic radiation are observed through prism to produce the spectrum.
As the name indicates this spectrum is produced by emission of energy. Although the electron can be excited by different methods such as by heating but the key point is that electrons in hydrogen atom will emit the photons of same energy which they absorb and each electron can absorb only certain type of energy. So four lines were observed in the visible spectrum of hydrogen because only certain energies are observed for hydrogen atom.
Answer:
Explanation:
Hello,
In this case, given the 2.00 M solution, we can compute the moles of calcium chloride that reacted:
Then, since in one mole of calcium chloride, we find two moles of chloride ions (see subscript), we can compute the moles of chloride ions that were involved in the reaction as shown below:
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Answer: the object is transparent.
Explanation:
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