Fun with Chemistry

One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?

• 1 kg

• 500 g

• 250 g

• None

If you fill a glass to the brim with ice water and the ice melts, what will happen?

• The glass will over flow as the ice turns to water.

• The level of water in the glass will remain unchanged as the ice melts.

• The water level will drop slightly as the ice melts.

• I'll never find out because I'll drink the water or walk away before anything happens.

The symbol Sb stands for stibnum or stibnite. What is the modern name of this element?

• Arsenic

• Antimony

• Seaborgium

• Tin

• Samarium

Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?

• Slightly acidic

• Neutral

• Strong acid

• Slightly basic

• No pH

DNA codes for proteins, which are the building blocks of organisms. What is the most abundant protein in the human body?

• Tubulin

• Collagen

• Albumin

• Keratin

Noble gases are inert because they have completed outer electron shells. Which of these elements isn't a noble gas?

• Helium

• Argon

• Chlorine

• Krypton

What is the most common isotope of hydrogen?

• Protium

• Deuterium

• Tritum

• Hydrogen has no isotopes

You can't live without water! What is its chemical formula?

• H₂

• H₂O

• H₂O₂

• O₂

Who is credited with the invention of the modern periodic table?

• Nobel

• Mendel

• Lovoisier

• Mendeleev

Which of these elements is a nonmetal?

• Sulphur

• Aluminium

• Manganese

• Beryllium