42

A line on a topographic map that connects points of equal elevation

• contour line

• Topography

• contour interval

• slope

What is the atomic number of molybdenum?

• 42

• 24

• 74

• 92

In Douglas Adams' 'The Hitchhiker's Guide to the Galaxy', what is the answer to the ultimate question of life, the universe, and everything?

• 42

• Infinity

• Love

• Happiness

What is the angle in degrees of a regular polygon with 42 sides?

• 171.43

• 160

• 180

• 165

Which element has the atomic number 42?

• Molybdenum

• Chromium

• Tungsten

• Uranium

A certain isotope has a half-life of 42 years. How much of a 100g sample remains after 84 years?

• 25g

• 50g

• 12.5g

• 6.25g

Tags

NGSS.HS-PS1-8

What is the sum of the atomic numbers of carbon and molybdenum?

• 48

• 42

• 18

• 6

In a scientific experiment, a solution is heated to 42 degrees Celsius. What is this temperature in Fahrenheit?

• 107.6°F

• 100°F

• 104°F

• 110°F

A chemical reaction occurs at 42% efficiency. If the theoretical yield is 100g, what is the actual yield?

• 42g

• 58g

• 50g

• 60g