Chemistry Revision

What is the smallest particle of an element that retains the properties of that element?

• proton

• molecule

• cell

• atom

What is the name of the bond formed when electrons are transferred from one atom to another?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

What is the pH value of a neutral substance?

• 7

• 5

• 3

• 10

What type of reaction occurs when two or more substances combine to form a new compound?

• Decomposition reaction

• Synthesis reaction

• Neutralization reaction

• Combustion reaction

How many periods are there in the periodic table?

• 10

• 12

• 5

• 7

What is the charge of a proton?

• Neutral

• Variable

• Negative

• Positive

What type of bond is formed when atoms share electrons?

• Metallic bond

• Covalent bond

• Ionic bond

• Hydrogen bond

What is the name of the reaction in which a compound breaks down into simpler substances?

• decomposition reaction

• condensation reaction

• synthesis reaction

• fusion reaction

What is the name of the group 1 elements in the periodic table?

• Alkali metals

• Halogens

• Transition metals

• Noble gases

What is the name of the process in which an acid and a base react to form salt and water?

• Neutralization reaction

• Photosynthesis reaction

• Oxidation reaction

• Combustion reaction