Chem👩🔬
Which element has the chemical symbol ‘Au’?
Gold
What is the SI unit of work and energy?
Joule
Paleontology is the study of what?
Fossils
What is the value of 125 to the two-thirds power?
25
How many carbons are found in a propane molecule
3
What is the equation for calculating work?
Work = force x distance
What is the most common element in the human body?
Oxygen
What is the imaginary unit "i" when raised to the power 10?
-1
What is the molality of a salt solution prepared by dissolving two moles of salt in 500 grams of water?
4
A machine performs 8 Joules of work in 2 seconds. How much power is delivered by this machine?
4 WATTS
In studies of the human body, what is used to describe a blood-filled sac formed by an outpouching in an arterial or venous wall?
Aneurysm
How many vertices does a tetrahedron have?
4
What would be the volume, in liters, of 11 grams of CO2 at standard temperature and pressure?
5.6 Liters
Assume a ray of light is incident on a smooth reflecting surface at an angle of incidence of 15 degrees to the normal. What is the angle between the incident ray and the reflected ray?
30 degrees
What are the water conducting cells in non-flowering vascular plants know as?
Tracheids
What is the sum of the first 100 positive integers?
5050
You have a solution of 5 molar Sodium Phosphate and have to prepare a solution of 500 millimolar Sodium Phosphate. How much water would you add to 100 milliliter of the original 5 molar solution to produce the 500 millimolar solution?
0.9 Liters or 0.9 Milliliters
The frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this wave?
1250 m/s
What is the term given to a fatty acid that has more than one set of double bonds between carbons?
Polyunsaturated
A woman is 22 years older than her daughter. Nine years ago she was twice as old as her daughter. What are their present ages?
The woman is 53, the daughter is 31