Compounds, Acids & Bases

Ocean water is a weak

The nucleus contains neutrons and

The range of "alkaline" on the pH scale is

Bananas are a weak

In a(n) __ atoms share electrons.

Blood is a weak

Scientist ___ developed a simplified model of an atom.

The study of matter

In a stable atom, the outermost shell is completely closed or filled up

The scientist ___ developed the periodic table of the elements that is most widely used today.

Based on the number of protons in the nucleus

A column on the periodic table of the elements is called a

Lemons are a strong

Pure water is a

If an atom loses an electron, it becomes a positive ion.

Atoms joined together

A __ reaction occurs when a compound is broken down into simpler compounds.

Soda is a strong

Eggs are a weak

Chemical symbols and numbers abbreviating the name of a compound

The range of "acidic" on the pH scale is

The smallest piece of an element that can be recognized as that element

Spinning around the nucleus are energetic particles called 

In a covalent bond, the atoms share ions.

A row on the periodic table of the elements is called a 

A substance; only one kind of atom

The center of an atom is called a 

An example of an ionic compound that is formed between sodium and chlorine

If the element copper has 29 protons, how many electrons does it have?  

When positively and negatively charged ions attract each other they form a(n)

You can determine the concentration of acids or bases in a solution by using __ .

Ammonia is a strong

Substance formed as a result of a chemical change; two or more different kinds of elements joined

Molecules combine to form a new substance.

An ionic bond forms when positively and negatively charged ions repel each other.

Lye soap is a strong

An atom that has gained or lost electrons

A substance that changes color when exposed to acid or base solutions is called a(n) __ .

Sour candy is a strong

"Neutral" on the pH scale is the number

The sum of the number of protons and neutrons results in an atom’s approximate ___ .

A compound breaks apart into two or more simpler compounds.

The compound H₂CO₃ has __ atom(s) of carbon in it.

The process in which different types of atoms join and form a new substance