as the temperature of an enclosed gas increases, the volume increases, if the pressure is constant. explain how charles's law can be derived from the combined gas law. divide both sides of the equation by p1, p1 and p2 will cancel leaving you with the equation for charles's law.
" The compressor compresses the ammonia gas. The compressed gas heats up as it is pressurized (orange).
The coils on the back of the refrigerator let the hot ammonia gas dissipate its heat. The ammonia gas condenses into ammonia liquid (dark blue) at high pressure.
The high-pressure ammonia liquid flows through the expansion valve. You can think of the expansion valve as a small hole. On one side of the hole is high-pressure ammonia liquid. On the other side of the hole is a low-pressure area (because the compressor is sucking gas out of that side).
The liquid ammonia immediately boils and vaporizes (light blue), its temperature dropping to -27 F. This makes the inside of the refrigerator cold.
The cold ammonia gas is sucked up by the compressor, and the cycle repeats."
The answer is A. Bronze, paraffin wax and salt
Bronze has a chemical formula of CuSn or Copper Tin Alloy. This is an example of metallic bond.
Metallic Bonding happens when two metal atoms form a chemical bond. This type of bond can be seen in pure metals, alloys and metalloids.
Paraffin wax has a chemical composition consisting of hydrocarbon molecules. They are alkanes of C-H bond. This kind of bond occurs due to covalent bonding.
Covalent Bond occurs between two nonmetal atoms.
Salt, in chemistry, is a common term for chemical species that are formed through ionic bond. Salt, the sodium chloride, is an example of ionic compound.
Ionic Bond occurs when metal and nonmetal transfers electron. This is the type of bond between cations and anions.
With the information given above, it is determined that the examples for metallic bond, covalent bond and ionic bond are BRONZE, PARAFFIN WAX and SALT.
ground the rocks and any hard on the earth