1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill [66]
3 years ago
5

How can scientists determine when a radioactive substance will no longer be dangerous

Chemistry
1 answer:
LekaFEV [45]3 years ago
7 0
They can probably use those radioactive measuring things. But they will still use proper caution around it.
You might be interested in
How maby electrons fill an orbit
Luden [163]
Each can hold two electrons
5 0
3 years ago
Read 2 more answers
What is called exothermic ​
Jobisdone [24]

An exothermic process is one that gives off heat.

Explanation:

This heat is transferred to the surroundings. An endothermic process is one in which heat has to be supplied to the system from the surroundings.

4 0
2 years ago
Colligative properties depend upon the ____. Select one: a. nature of the solute b. nature of the solvent c. number of solute pa
Flauer [41]
The correct answer is C. Colligative properties only depend upon the number of solute particles in a solution but not on the identity or nature of the solute and solvent particles. I hope this anwers your question. 
3 0
3 years ago
Read 2 more answers
What is the transfer of electrons in Al + Cl = AlCl3
otez555 [7]

Answer:

3 e⁻ transfer has occurred.

Explanation

This is a redox reaction.

  • Oxidation (loss of electrons or increase in the oxidation state of entity)
  • Reduction (gain of electrons or decrease in the oxidation state of the entity)
  • An element undergoes oxidation or reduction in order to achieve a stable configuration. It can be an octet or duplet configuration. An octet configuration is that of outer shell configuration of noble gas.
  • [Ne]= (1s²) (2s² 2p⁶)

A combination of both the reactions( Half-reactions) leads to a redox reaction.

Let us look at initial configurations of Al and Cl

[Al]= 1s² 2s² 2p⁶ 3s² 3p¹

[Cl]= 1s² 2s² 2p⁶ 3s² 3p⁵

Hence, Al can lose 3 electrons to achieve octet config.

and, Cl can gain 1e to achieve nearest noble gas config. [Ar]

This reaction can be rewritten, by clearly mentioning the oxidation states of all the entities involved.

Al⁰ + Cl⁰ → (Al⁺³)(Cl⁻)₃

Here, Aluminum is undergoing an oxidation(i.e loss of electrons) from: 0→(+3)

Chlorine undergoes a reduction half reaction (i.e gain of electrons) from: 0→(-1). There are 3 such chlorine atoms, hence 3 e⁻ transfer has occurred.

3 0
3 years ago
Unscramble the word nlpituloo
nadezda [96]
Hello

The word is "pollution"

Hope this helps and have a great day!
3 0
3 years ago
Read 2 more answers
Other questions:
  • What term defines a mass which is exactly equal to 1/12 the mass of one carbon-12 atom
    7·1 answer
  • The empirical formula for a compound is CH2. If n is a whole number, which shows a correct relationship between the molecular fo
    14·1 answer
  • Which of the following is an example of the conversion of kinetic energy into gravitational potential energy?
    8·1 answer
  • You decide to boil water to cook noodles. You place the pan of water on the stove
    9·1 answer
  • B) Name three substances which can undergo sublimation and deposition respectively​
    6·1 answer
  • Suggest a possible mechanism for the acid catalyzed reaction of a typical ketohexose to give 5-hydroxymethylfurfural.
    8·1 answer
  • What do you understand by a chemical reaction
    15·1 answer
  • How many electrons do atoms usually want in their outermost orbital?(Octet Rule)​
    10·1 answer
  • What volume would 4.32x1023 atoms of Krypton gas occupy at STP?​
    10·1 answer
  • Explain briefly how you would obtain crystals of sodium chloride from a mixture of sodium chloride ,lead[ii]oxide and iron filin
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!