duane

This page lists questions and answers that were posted by visitors named duane.

Questions

The following questions were asked by visitors named duane.

What is the Molarity of a solution formed by mixing 10.0g H2SO4 with enough water to make 100.0mL of solution?

Explain why radioactivity can be used as a "clock" to measure the march of geologic time.

A car traveling about 50km/h collides head-on with something solid. The car crumples, slows down and stops. Use the law of inertia to explain why a crash dummy not restrained by a seat belt in the car slams into the steering wheel.

Explain the process of reflection.

Is this balanced correctly NaOH + H2SO4 = Na2SO4 + H2O? In this equation, Sodium (Na) and Hydrogen (H) atoms are not balanced. There are 2 atoms of Sodium (Na) on Right Hand Side, so we can multiply NaOH with 2 on Left Hand Side. This balances the Sodium...

A half-life of mercury-195 is 31 hours. If you start with a sample of 5.00g of pure mercury-195, how much of it will still be present after 93 hours?

the speed of sound in air is given for still air. how would wind affect the speed? what would happen if you shouted into the wind?

how fast would a "jet" fish have to swim to create an "aquatic" boom?

why do the tones sound full and rich when you sing in the shower?

if the Moon's spherical surface gave specular reflection, what would it resemble at full moon?

Why when you look at a window from the inside at night, two similar images, one behind the other, are often seen?

what happens when you cut a bar magnet in half? if it were continually cut in half, then would it finally yield two magnetic monopoles?

how would you go about locating the magnetic north pole assuming it were still on land?

Name the ionic compound form when a Magnesium reacts with chlorine?

element 118 was reportedly synthesized in 1999, but the claim was later retracted. as a consequence of that experiment, element 116 was discovered. to what period and group would each of these two elements belong, and what known elements should each resem...

homogenized milk is composed of microscopic globules of fat suspended in a watery medium. is homogenized milk a true solution?

which of the two system in figure 4 do you think will need the largest motor

Answers

The following answers were posted by visitors named duane.

While the moment in time at which a particular nucleus decays is unpredictable, a collection of atoms of a radioactive nuclide decays exponentially at a rate described by a parameter known as the half-life, usually given in units of years when discussing...

I want to become teacher