Acids
Chemical
Reactions
Bonding
Periodic Table
Atomic
Structure
100

What is the pH scale used to measure in chemistry

What is acidity

100

If a chemical reaction requires energy to proceed, is it classified as endothermic or exothermic

An endothermic reaction

100

The name of the bond formed between a metal and a nonmetal

What is an ionic bond

100

The symbol for the element with atomic number 11?

What is $Na$( Sodium.) 

100
The atomic number of an element is..

What is the number of protons in the nucleus of an atom

200

What is the name of the acid found in lemons

What is citric acid

200

What is the term for the minimum amount of energy needed to start a chemical reaction

Activation energy

200

The term for the sharing of electrons between two nonmetal atoms

What is a covalent bond
200

The amount of elements in the periodic table

What is 118 elements

200

The smallest unit of an element that retains the properties of that element


What is an atom

300

What type of acid is found in vinegar?

What is acetic acid

300

In a chemical equation, the number of atoms of each element is conserved. What law does this represent

Law of conservation of mass

300

How many valence electrons does an atom of oxygen have


6 valence electrons

300

The group of elements found in Group 18 of the periodic table

What are Noble Gases

300

The central part of an atom that contains protons and neutrons

What is the nucleus

400

What is the pH of a neutral substance?

What is 7

400

When a substance undergoes a chemical change and forms new substances, what is it called

What is a chemical reaction
400

What type of bond is formed when atoms share an equal number of electrons

What is a nonpolar covalent bond

400

The term for a horizontal row in the periodic table

What is a period

400

The name of the particles with a positive charge found in the nucleus of an atom

What are protons

500

What type of acid is commonly found in oranges?

What is citric acid

500

What type of reaction occurs when two elements swap atoms to form new compounds

What is Double Displacement Reaction

500

In a metallic bond, what holds the metal atoms together

What is the sea of delocalized electrons

500

The element with the atomic number 29 in the periodic table

What is Copper

500

The term for atoms of the same element that have different numbers of neutrons

What are isotopes