EVERYDAY SCIENCE

What is the chemical symbol for oxygen?

A) O2

B) Ox

C) O

D) Oc

What type of chemical bond involves the sharing of electrons between atoms?

A) Ionic

B) Covalent

C) Metallic

D) Hydrogen

What is the chemical symbol for gold?

A) Go

B) Au

C) Ag

D) gold

In chemistry, what does the ph scale measure?

A) Temperature

B) Acidity or alkalinity

C) Density

D) Pressure

What is the chemical symbol for silver?

A) S

B) Si

C) Ag

D) Sl

Which of the following is a noble gas?

A) Hydrogen

B) Oxygen

C) Neon

D) Nitrogen

What is the chemical symbol for calcium?

A) Cl

B) Ca

C) Co

D) Ce

What is the process by which a substance changes directly from a solid to a gas without passing through the liquid phase?

A) Evaporation

B) Sublimation

C) Condensation

D) Fusion

What is the chemical symbol for potassium?

A) K

B) Po

C) Pt

D) Kr

Which gas is produced during the process of respiration in cells?

A) Oxygen

B) Carbon dioxide

C) Nitrogen

D) Hydrogen