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
anyanavicka [17]
3 years ago
15

Explain the process of radioactive decay. What happens during the radioactive decay? What is the result at the end of radioactiv

e decay?
Chemistry
2 answers:
nignag [31]3 years ago
7 0

1) Radioactive decay is the spontaneous decomposition of the unstable nucleus of an atom.

2) The emission of a particle or a photon.

For example, alpha decay is radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus).

3) The result is usually more stable element with smaller atomic number.

For example, in alpha decay atom transforms into an atom with an atomic number that is reduced by two and mass number that is reduced by four.

For example nuclear fission is radioactive decay process in which the nucleus of an atom splits into smaller parts and huge amount of energy is released.

LUCKY_DIMON [66]3 years ago
7 0

Answer:

Here's what they put

Explanation:

Sample Response: Radioactive decay is the process in which the nucleus of an unstable isotope spontaneously changes, releasing particles and energy. An unstable isotope will continue to decay until it reaches the stable form of either a different isotope of the same element that is stable or a different element that is stable.

You might be interested in
Why don’t the trees spontaneously catch fire and burn all the time? Why don’t the fires stop immediately as soon as they start?
algol13

Answer:

Both of these phenomena is due to the ignition temperature.

Explanation:

Trees don't spontaneously catch fire because there is a temperature above which materials combust. This is called the "ignition temperature." This temperature must be reached before the trees will ignite, and the external condition does not always harbor such high temperature.

Fires don't stop immediately because, while some parts of the flame has cooled down sufficiently below the ignition temperature, other parts of the flame have not. It takes time for all the part of the flame to cool down below ignition temperature for the burning to stop.

7 0
3 years ago
How many grams of H2S is needed to produce 18.00g of PbS if the H2S is reacted with an
goldenfox [79]

Answer:

2.56 grams of H₂S is needed to produce 18.00g of PbS if the H2S is reacted with an  excess (unlimited) supply of Pb(CH₃COO)₂

Explanation:

The balanced reaction is:

Pb(CH₃COO)₂ + H₂S → 2 CH₃COOH + PbS

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction) they react and produce:

  • Pb(CH₃COO)₂: 1 mole
  • H₂S: 1 mole
  • CH₃COOH: 2 moles
  • PbS: 1 mole

In this case,  to know how many grams of H₂S are needed to produce 18.00 g of PbS, it is first necessary to know the molar mass of the compounds H₂S and PbS and then to know how much it reacts by stoichiometry. Being:

  • H: 1 g/mole
  • S: 32 g/mole
  • Pb: 207 g/mole

The molar mass of the compounds are:

  • H₂S: 2* 1 g/mole + 32 g/mole= 34 g/mole
  • PbS: 207 g/mole + 32 g/mole= 239 g/mole

So, by stoichiometry they react and are produced:

  • H₂S: 1 mole* 34 g/mole= 34 g
  • PbS: 1 mole* 239 g/mole=   239 g

Then the following rule of three can be applied: if 239 grams of PbS are produced by stoichiometry from 34 grams of H₂S, 18 grams of PbS from how much mass of H₂S is produced?

mass of H_{2} S=\frac{18 grams of PbS*34 grams of H_{2}S }{239 grams of PbS}

mass of H₂S= 2.56 grams

<u><em>2.56 grams of H₂S is needed to produce 18.00g of PbS if the H2S is reacted with an  excess (unlimited) supply of Pb(CH₃COO)₂</em></u>

8 0
4 years ago
How does changing the energy in a substance to change its state of matter
STALIN [3.7K]

Answer:

The transfer of energy to a substance or from a substance can change the state of matter of the substance. For example, when water in the liquid state is heated the molecules of water start to move vigorously and hence the liquid state of water gets converted into the gaseous state in the form of steam. When liquid water is cooled down the molecules compress and form ice changing the liquid state of water into the solid-state.

6 0
3 years ago
PLEASE HELP ME I WILL MARK U BRAINLEIST!!!!
qwelly [4]
Nice hand writing, what question do you need help with??
5 0
3 years ago
What is the molarity of a solution made from dissolving 3.0 moles of Saline (NaCl) in 0.25 L of solution?
Delvig [45]

Answer:

D

Explanation:

all ya got to do is divide the moles from the solution... so 3.0 divided by 0.25. put it in a calculator

hope this helps

6 0
3 years ago
Other questions:
  • Which of the following is the best definition of nodes?
    5·2 answers
  • What could two atoms of the same element form?
    14·2 answers
  • What is the chemical formula for the ionic compound calcium chloride?
    6·2 answers
  • Now, examine the structures of benzhydrol and fluorene. Both compounds contain the same number of carbons but have very differen
    5·1 answer
  • We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
    5·1 answer
  • Organisms with traits best suited to their environment, survive during what process?
    8·1 answer
  • Balance the following equations ___Fe + __O2= ___Fe3O4
    14·1 answer
  • 100 pts HORTICULTURE (HURRY)
    7·1 answer
  • Scientists us ________waves to study the characteristics of Earth Layers_______ cannot travel through liquid, so the ________mus
    6·1 answer
  • If the sodium oxide (Na2O) in soda-lime glass was replaced by potassium oxide (K2O), this would result in . . .
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!