0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is radioactive half-life used for?
to determine how long it will take to half of nuclids to decay, having use in radioactive materials operations
As the mass increases what happens to the potential energy?
It lowers proportionally to the decrease in the mass. Since potential energy = mgh, changing the "m" would completely change the potential energy. For instance if we look at g as 10 m/s^2 and h as 10m: The original mass is 10kg. (10kg)*(10m/s^2)*(10m)= 1000J If we cut the mass in half. (5kg)*(10m/s^2)*(10m)= 500J The potential energy is cut in half.
The characteristic of the radioactive isotope uranium-238 that makes this isotope useful for accurately dating the age of a rock is the isotope's BLANK?
constant half-life
How would you determine the density of an irregular shaped rock?
Not always easy. Since density is defined as the mass of a unit volume of material,you would measure the volume of the rock by putting it into a container half filled with water and then measure the volume change.
What increases the kinetic energy of the particles that make up a bowl of soup?
potential energy
Where would the rock climbers at the top have to be to have half as much potential energy?
Half way down the wall.
What pair of half-reacations would have a negative total reduction potential?
If the reduction potential of the cathode is greater than that of the anode, there will be a negative total reduction potential (reaction will not proceed spontaneously).
How many half-lives have passed?
To determine how many half-lives have passed, you would need to divide the total time passed by the half-life of the substance. The result would give you the number of half-lives that have occurred.
What is one half of 1g?
Quite simply ; its a half a gramme , or more accurately its 0.500 grammes .
What pairs of half-reactions would have a negative total reduction potential?
silver reduced , gold oxidized
What pair of half- reactions would have a negative total reduction potential?
silver reduced , gold oxidized
What is the area of a half square?
This would be more accurately answered if given more information on the size of the square. The formula you would use is area = width × height and then divide by 2.
What of half-reactions would have a negative total reduction potential?
Silver (Ag) reduced, gold (Au) oxidized
Which pairs of half-reactions would have a negative total reduction potential?
Silver (Ag) reduced, gold (Au) oxidized.
How do scientists measure the standard reduction potential of a half cell?
Pair it with a hydrogen half cell
How do you determine lines of symmetry?
Easiest way is to make a cut out of the image and determine if it folds in half. The crease made by folding in half is the line of symmetry.
What is the cell potential?
the difference in reduction potentials of the half-cells
