Properties of Common Liquids and Uses of Ethyl Alcohol Quiz

Importance of Liquid Materials

• Knowing the properties of common liquid materials is crucial in various applications.

Ethyl Alcohol Uses

• Ethyl alcohol is used as a solvent, antiseptic, and fuel.

Methane Uses

• Methane is commonly used as a fuel and in the production of electricity.

Preservatives for Fish

• To preserve a fish for a Biology class project, Maria Paula should use a compound like formalin or paraformaldehyde.

Chocolate Mousse Recipe

• To prepare a 250-g chocolate mousse containing 30% cream, 75g of cream would be needed (250g x 0.30 = 75g).

Covalent Compounds

• Water (H₂O) is an example of a covalent compound.

Avogadro's Number

• Avogadro's number represents the number of particles in 1 mole, which is 6.022 x 10²³ particles.

Mole Concept in Environmentalism

• Knowledge of the mole concept is useful for environmentalists in calculating the amount of substances in the environment and predicting the effects of pollution.

Percentage Composition Applications

• Knowledge of percentage composition is useful in calculating the amount of ingredients in a product, determining the purity of a substance, and comparing the composition of different substances.

Atomic Combination

• The valence electrons of an atom are important in determining how atoms combine.

Ionic Bonding

• Ionic bonding takes place through the transfer of electrons between atoms, resulting in the formation of ions with opposite charges that attract each other.

Oxygen Bonding

• A covalent bond is formed between two oxygen atoms (O₂).

Electrolytes in Sports Drinks

• Sucrose is not considered an electrolyte in sports drinks.

Solubility of Sodium Chloride

• The high solubility of sodium chloride (NaCl) in water is due to the strong attraction between the sodium and chloride ions and the polar water molecules.