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loris [4]
1 year ago
7

How much of the original amount of an isotope is present after a period of four half lives

Chemistry
1 answer:
vfiekz [6]1 year ago
7 0

After 2 half-lives there will be 25% (1/4th) of the original isotope, and 75% (3/4 th) of the decay product

<h3>What is Half life period ?</h3>

A half life is a measurement of the slope of an exponential decay function.

It is also defined as, the time it takes to halve the concentration of something in a process.

Each half life you will have half of what you had at the beginning of a given half life.

Learn more about half life here ;

brainly.com/question/9654500

#SPJ1

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What are the differences between thermoplastics and thermosetting plastics? Give examples and draw a simple diagram to show what
Olenka [21]

<u><em>on the basis of the reaction of heat in plastic , their are two types of plastics : </em></u>

<h2><u><em>Thermoplastic & Thermosetting plastics </em></u></h2>

<u><em>Thermoplastics : Plastics which easily get deformed (become soft )on heating and also get bend easily are known as thermoplastics . </em></u>

<u><em>examples :  polythene , polyvinyl  chloride and polystyrene .</em></u>

<u><em>thermosetting plastics : plastics which once moulded into a shape do not become soft on heating and cannot be moulded again are called thermosetting plastics .</em></u>

<u><em>examples : bakelite , melamine and formica</em></u>

4 0
3 years ago
How many grams of aluminum can react with 336g oxygen? 4Al + 3O2 --&gt; 2Al2O3
baherus [9]

Answer: 714 g Al2O3

Explanation: Solution attached

First convert mass of O2 to moles

Do the mole ratio between O2 and Al2O3 from the balanced equation.

Convert moles of Al2O3 to mass using its molar mass.

5 0
3 years ago
A 25 Ω resistor has a voltage drop of 12 V across it. Calculate the current flowing through the resistor
Yanka [14]

Answer:

0.48

Explanation:

i =  \frac{v}{r}

because we are looking for I which is current we say

I = 12÷25 which is 0.48.

4 0
3 years ago
How many elements are represented in the formula CaCO3
Vlada [557]

Answer:

3

Explanation:

calcium (Ca)

carbon(C)

oxygen(O)

hope u like it ‍❤️‍‍❤️‍‍

For any question comment me

5 0
3 years ago
Read 2 more answers
Convert 122 moles of Methane to liters?
ANTONII [103]
122 moles of Methane to liters is 2734.5
5 0
3 years ago
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