The rate at which a radioactive<span> isotope decays is measured in </span>half-life. The termhalf-life<span> is defined as the time it takes for one-</span>half<span> of the atoms of a </span>radioactive material<span> to disintegrate. </span>Half-lives<span> for </span>various radioisotopes<span> can range from a few microseconds to billions of years.
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back at it again with that answer
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zane
Answer:
In oxidation reduction reactions, one species gets reduced by taking on electron(s) and another species gets oxidized by losing electrons. The movement of electrons can be used to do work. ... The electron flow can be run through a wire and these electrons can be used to do work (like run a battery). Hope this helps.
Answer:
285.6
Explanation:
(283.4×0.3460)+(284.7×0.2120)+(287.8×0.4420)
=285.6204
A reaction between acid and base to form water and salt is known as neutralization reaction. It is a double replacement reaction.
The reaction between 
and 
will be:
The balanced reaction is:
Volume of = 28 mL (given)
Since, 1 L = 1000 mL
So, 28 mL = 0.028 L
Molarity of = 5.4 M (given)
Molarity = 
-(1)
Substituting the values in equation (1):
From the balanced reaction between and , 2 moles of reacts with 1 mole of .
Molar mass of = 84.007 g/mol
Mass of needed:
= 
Hence, the required amount of is .
