The unknown solid is removed by rinsing with water while the PDB is removed by rinsing with alcohol.
<h3>What are solvents?</h3>
Solvents are substances which dissolve other substances to form solutions or mixtures.
Water is used as a solvent for inorganic substances while organic solvents such as alcohol or kerosene are used as solvents for organic substances such as PDB.
Alcohol is added to the test tube containing PDB, which then dissolves. The tube is rinsed with more alcohol until all the PDB dissolves.
Therefore, the unknown solid is removed by rinsing with water while the PDB is removed by rinsing with alcohol.
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Answer:
F2, Br2, I2
Explanation:
The halogen diatomic molecules have a general formula X2. Based on periodic properties, the halogens all have similar chemical behavior. This implies that, F2, Cl2, Br2 and I2 all have similar chemical properties.
All these other X2 halogen molecules are likely to react with St, just as Cl2 does.
Answer:
A
Explanation:
I would say A because the sun makes energy right so if you are looking for an arrow or arrows I would say A I hope this helps!! and have a great day or night
Use the Kelvin temperature scale.
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
