FirstDay

Question 1

What is the dissolution of gases? (24)

Answer 1

How gases dissolve into liquids.

Question 2

In what range of kelvin is water a liquid? (24)

Answer 2

273K - 373K

Question 3

At what temperature is water’s density maximum?

Answer 3

4C

Question 4

Why are covalent and ionic bonds stronger than other types of chemical bonds (dipolar, H-bonds, Van der Waals)?

Answer 4

Ionic and Covalent bonds involve the complete transfer or or sharing of electrons. This is called electrostatic attraction in which positive and negative charges directly interact with each other.

Question 5

define covalent bond

Answer 5

electrostatic attraction between two particles in which electrons are shared

Question 6

define ionic bond

Answer 6

electrostatic attraction between two particles in which electrons are completely transferred

Question 7

define dipolar interaction

Answer 7

attraction between two dipolar molecules that interact with each other within a specific vicinity through space

Question 8

define H-bond

Answer 8

a specific type of dipole interaction that occurs between a molecule that has a H and electronegative atom and another molecule with a electronegative atom that has a lone pair of electrons

Question 9

define Van der Waals interactions

Answer 9

instantaneous dipoles caused by the “flickering” of electrons

Question 10

when are small attractive forces higher?

Answer 10

when densities are higher (higher mass to volume aka. more molecules within a space) so that molecules are more likely to interact with each other