Chapter 2

Bases can (vers Bottoms?)

Both take up hydrogen ions and releases hydroxide ions.

An atom that has an electrical charge is called an

Ion

The type of bond that would form from the transfer of an electron from one atom to another, shown below, is an _____bond (I am selfish and need that bitch all to myself)

Ionic

The pH scale is a mathematical indicator of the (look at the capitol H girl)

the concentration of H+ present in a solution

Chemical bonds involve the

the giving, taking or sharing of electrons.

Isotopes differ from an atom in their

Atomic mass

All atoms of the same element have the same

Atomic number

An ionic bond forms when

A negatively charged ion is attracted t one with a positive charge

How does a strong acid differ from a weak acid?

A weak acid dissociates only partially in water

Inside a living cell which type of bond would be the most stable?

Covalent

An atoms balance electron shell

Determines its chemical reactivity

A covalent bond occurs when (Can you share with me?)

Electrons are shared between two atoms and complexion their octets

Which of the following explains the events occurring when water boils?

Hydrogen bonds are broken between neighboring water molecules

Which of the following is not one of the most commons elements in living things?

Iron

A covalent bond involves the sharing of

Pairs of electrons

Elements differ from each other in their

Phsyical lroperties and atomic number

Regarding atoms, identify which statement below is correct

The number and arrangement of electrons in an atom hovers it's chemical activity

Which of these does not occur when a sodium atom transfers an electron to a chlorine atom? c

There is a mutual sharing of the electrons between the sodium and chlorine atoms

A water molecule, as shown here, is polar because of (think biPOLAR because it's uneven/unstable)

Unequal sharing of electrons

Isotopes of an element differ in their

neutron number

Which of the following is a property of acids?

release hydrogen ions when dissolved in a liquid

Which of the following describes how an acid disrupts the chemical bonds of molecules in a cell?

The H+ ions can disrupt hydrogen bonds as the slightly negative portion of the molecule is more attracted to the H+ ions than to the hydrogen that was part of the bond.

The number of neutrons present in the nucleus of an average atom of any given element is best estimated by

Subtracting the number of protons from the mass number