Fraction

What is the fraction of oxygen in Earth's atmosphere by volume?

• 21%

• 78%

• 0.03%

• 1%

In a chemical reaction, the fraction of reactants converted to products is known as the:

• Reaction rate

• Equilibrium constant

• Conversion fraction

• Activation energy

Tags

NGSS.HS-PS1-6

If a solution has a fraction of solute particles that is 0.1, what is the percentage concentration of the solute?

• 1%

• 10%

• 0.1%

• 100%

What fraction of the human body is composed of water?

• 1/2

• 2/3

• 3/4

• 1/4

In genetics, what fraction of offspring will display a recessive trait if both parents are heterozygous?

• 1/4

• 1/2

• 3/4

• 1/3

Tags

NGSS.HS-LS3-3

What is the fraction of the moon's surface that is illuminated by the sun at any given time?

• 1/2

• 1/4

• 3/4

• 1

Tags

NGSS.MS-ESS1-1

In a sample of radioactive material, what fraction of the original sample remains after one half-life?

• 1/2

• 1/4

• 1/8

• 1

Tags

NGSS.HS-PS1-8

What fraction of the Earth's surface is covered by oceans?

• 1/2

• 2/3

• 3/4

• 1/3

In a mixture of gases, the fraction of the total pressure contributed by a single gas is known as its:

• Partial pressure

• Vapor pressure

• Osmotic pressure

• Total pressure

What fraction of the speed of light is the speed of sound in air?

• 1/1,000,000

• 1/1,000

• 1/10,000

• 1/100

Tags

NGSS.HS-PS4-1