General Chemistry 2 - 12th Grade Quarter 3

<p>Increases vapor pressure (B)</p> Signup and view all the answers

<p>High surface tension (C)</p> Signup and view all the answers

<p>It will have a high molar heat of vaporization. (B)</p> Signup and view all the answers

<p>Most materials are organized with minimal issues. (C)</p> Signup and view all the answers

<p>Several steps were performed incorrectly. (B)</p> Signup and view all the answers

<p>Stronger in solids (B)</p> Signup and view all the answers

<p>Color of the liquid (A)</p> Signup and view all the answers

<p>6 points (B)</p> Signup and view all the answers

<p>4 points (A)</p> Signup and view all the answers

<p>Procedure was followed without significant issues. (B)</p> Signup and view all the answers

<p>Number of electrons in the molecule (C)</p> Signup and view all the answers

<p>Hydrophilic (D)</p> Signup and view all the answers

<p>It is the attraction of water molecules to other water molecules. (C)</p> Signup and view all the answers

<p>Liquid water is denser than ice. (A)</p> Signup and view all the answers

<p>It enhances water's cohesion and adhesion. (D)</p> Signup and view all the answers

<p>Attraction between different types of molecules. (D)</p> Signup and view all the answers

<p>Hydrogen bonding (A)</p> Signup and view all the answers

<p>They exist in all types of molecules. (B)</p> Signup and view all the answers

<p>Molecules in a liquid are closer together than molecules in a gas. (D)</p> Signup and view all the answers

<p>Dispersion forces (B)</p> Signup and view all the answers

<p>H₂S is a common example of a hydrogen bond. (B)</p> Signup and view all the answers

<p>Increased surface tension (A)</p> Signup and view all the answers

<p>NH₃ (B)</p> Signup and view all the answers

<p>Water's various roles and significance in life. (C)</p> Signup and view all the answers

<p>Intramolecular forces involve bonds within a molecule. (A)</p> Signup and view all the answers

<p>Its high surface tension that allows small objects to float. (C)</p> Signup and view all the answers

<p>Both play a role in the physical properties of substances. (A)</p> Signup and view all the answers

<p>Molecules in a solid vibrate in fixed positions. (D)</p> Signup and view all the answers

<p>Behavior of water molecules in different environments. (C)</p> Signup and view all the answers

<p>They raise the boiling point. (C)</p> Signup and view all the answers

<p>They are responsible for solubility and boiling points. (D)</p> Signup and view all the answers

<p>They occur in all molecules, regardless of polarity. (B)</p> Signup and view all the answers

<p>Both types of forces are identical. (D)</p> Signup and view all the answers

<p>Water's role as a solvent. (D)</p> Signup and view all the answers

<p>Forces holding atoms within a molecule (B)</p> Signup and view all the answers

<p>They involve complete transfer of valence electrons (D)</p> Signup and view all the answers

<p>Non-polar covalent bond (C)</p> Signup and view all the answers

<p>Atoms involved have slightly different electronegativities (D)</p> Signup and view all the answers

<p>They are attractive forces between polar molecules (D)</p> Signup and view all the answers

<p>Hydrogen bonding (A)</p> Signup and view all the answers

<p>They determine the physical properties of substances. (D)</p> Signup and view all the answers

<p>Intramolecular forces hold atoms together, while intermolecular forces are between molecules. (C)</p> Signup and view all the answers

Forces that hold atoms together within a molecule.

Forces of attraction between molecules.

The tendency of like molecules to stick together, caused by strong intermolecular attractions.

The tendency of unlike molecules to stick together, caused by intermolecular interactions.

A special type of intermolecular force that occurs between molecules containing hydrogen bonded to highly electronegative atoms like oxygen, nitrogen, or fluorine.

A type of intermolecular force arising from temporary fluctuations in electron distribution around molecules, creating temporary dipoles.

A type of intermolecular force occurring between polar molecules, caused by the attraction between oppositely charged ends of the molecules.

A type of intermolecular force involving an ion and a polar molecule.

The ability of a liquid to resist flowing, measured by its resistance to flow under an applied force.

The force that causes a liquid to minimize its surface area, due to the inward pull of cohesive forces between liquid molecules.

A measure of the energy needed to vaporize one mole of a liquid at its boiling point.

The pressure exerted by the vapor of a liquid at a given temperature, representing the tendency of molecules to escape into the gas phase.

The temperature at which the vapor pressure of a liquid equals the external pressure, causing the liquid to boil.

The ability of a molecule to attract other molecules of the same substance (like attracts like).

The ability of a molecule to attract molecules of a different substance.

The process of evaluating the quality of learning in a General Chemistry 2 class.

A set of rules or guidelines that outline the expectations for student behavior and performance in a General Chemistry 2 laboratory setting.

A set of criteria used to assess the quality of student work in a General Chemistry 2 experiment.

The level of preparation that a student demonstrates by having all necessary materials ready for the General Chemistry 2 experiment.

The execution or carrying out of the procedure for a General Chemistry 2 experiment.

The ability to follow all steps of a General Chemistry 2 experiment precisely and consistently for reliable results.

The ability to follow most of the steps of a General Chemistry 2 experiment correctly, with only minor errors that may lead to minor inconsistencies in results.

The ability to follow a few steps of a General Chemistry 2 experiment, but many steps of the experiment are skipped, performed incorrectly, or lead to unreliable results.

A bond formed by the complete transfer of electrons between atoms, resulting in oppositely charged ions that attract each other.

A bond formed when atoms share electrons to achieve stability and a full outer shell of electrons.

A covalent bond formed between identical atoms or atoms with very similar electronegativity, resulting in an even distribution of electrons.

A covalent bond formed between atoms with slightly different electronegativity, resulting in a partial positive and partial negative charge on the atoms.

A type of intermolecular force that occurs between polar molecules, where the positive end of one molecule is attracted to the negative end of another.

The kinetic molecular model describes the behavior of gases based on the constant motion and collisions of particles. The model states that gas particles are in constant, random motion, have negligible volume compared to the space they occupy, and interact only during collisions.

The kinetic molecular model states that molecules in a gas are far apart compared to molecules in a liquid. The space between gas molecules is much larger.

Carbon dioxide (CO₂) is a nonpolar molecule, meaning it has no permanent dipole moment. The only intermolecular forces present between CO₂ molecules are London dispersion forces, which arise from temporary fluctuations in electron distribution.

Stronger intermolecular forces increase the attraction between molecules, which makes liquids resist being pulled apart. This leads to increased surface tension.

Hydrogen bonding is a special type of dipole-dipole interaction that occurs when a hydrogen atom is bonded to a highly electronegative atom like oxygen, nitrogen, or fluorine.

Ammonia (NH₃) has a lone pair of electrons on the nitrogen atom, which makes it polar. This polarity allows for hydrogen bonding to occur between ammonia molecules.

Water's unusually high surface tension is explained by strong hydrogen bonding between water molecules. This strong attraction between water molecules allows small objects to float on the surface.

Stronger intermolecular forces lead to a higher boiling point because more energy is needed to overcome the attractive forces between molecules.

The ability of a substance to dissolve in water. Substances that interact with and dissolve in water are called hydrophilic.

A measure of how compact the mass of a substance is. Water is unusual because its solid form (ice) is less dense than its liquid form.

The amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

The amount of heat energy required to vaporize 1 mole of a liquid at its boiling point.

The ability of a substance to resist changes in temperature. This is due to the strong hydrogen bonds in water.