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
LUCKY_DIMON [66]
4 years ago
15

What term defines the specific amount of time required for half of a radioactive substance to become stable?

Chemistry
2 answers:
Genrish500 [490]4 years ago
6 0
A. half-life that is the correct answer because i"ve seen this question before. 

goldenfox [79]4 years ago
5 0
Half life is the specific amount of time required for half of a radioactive substance to become stable.

You might be interested in
Find and fix each mistake in the following equilibrium constant expressions.
IRINA_888 [86]

Answer:

A. c. Keq=[H2]^2[S2]/[H2S]^2

B. b. Keq=[COCl2]/[CO][Cl2]

Explanation:

Hello,

In this case, considering the law of mass action which states that the equilibrium expression is written in terms of the concentration of products divided by the concentration of reactants considering the stoichiometric coefficients as powers we obtain:

A. For the reaction:

2H_2S(g)\rightleftharpoons 2H_2(g)+S_2(g)

The equilibrium expression is:

Keq=\frac{[H_2]^2[S_2]}{[H_2S]^2}

Therefore, answer is c. Keq=[H2]^2[S2]/[H2S]^2.

B. For the reaction:

CO(g)+Cl_2(g)\rightleftharpoons COCl_2(g)

The equilibrium expression is:

Keq=\frac{[COCl_2]}{[CO][Cl_2]}

Therefore, answer is b. Keq=[COCl2]/[CO][Cl2].

Regards.

8 0
3 years ago
Which best describes the use of physical properties to produce the current model of the periodic table?
inysia [295]

Answer:

A

Explanation:

4 0
3 years ago
Read 2 more answers
Crude oil is a mixture of many different chemical compounds.
evablogger [386]

Answer:

092) Icosane

093) Ethene

Explanation:

092) The given compounds are;

Decane C₁₀H₂₂; Viscosity = 0.850 mPa·s (25°C)

Ethene C₂H₄ (gas); Viscocity ≈ 0.01038 m

Icosane C₂₀H₄₂; Solid at room temperature

Methane CH₄; gas at room temperature

The viscosity of the given carbon and hydrogen compounds is observed to increase with their molar masses

Therefore, icosane, which is a solid at room temperature, has the highest viscosity (resistance to deformation) out of the given compounds

093) Polymers are made from monomer alkene units, therefore, ethene, which is the only alkene among the given compounds can be used to produce a polymer

Polyethene is formed by the polymerization of ethene whereby molecules of ethene are joined together to form poly(ethene)

6 0
3 years ago
Which of the following is a property of a liquid?
Firdavs [7]

Answer: it takes the shape of the container you use

Explanation:

im very sorry if im wrong but think about a cup or a water bottle because when you poor the liquid into those it takes the shape of the water bottle. or think of like a straw

4 0
3 years ago
Which of the following chemical equations is NOT correctly balanced?
forsale [732]
To see if an equation is balanced, make sure that each side of the reaction has an equal number of the types of atoms.  The one that has a mismatch is A
6 0
3 years ago
Other questions:
  • The dimensions of a box are measured to be 18.4 inches by 17.92 inches by 26 inches. The volume of the box can be found by multi
    9·2 answers
  • Indicate the coordination number and oxidation number of the metal in:
    5·1 answer
  • Which of these forces acts on a football after it has been thrown by a quarterback (and before it touches the ground or another
    12·2 answers
  • (I NEED THIS ANSWERED QUICKLY! I'M TAKING A QUIZ!)
    14·2 answers
  • The motion that occurs because the star is moving towards or away from the earth is known as
    8·2 answers
  • What is the element symbol for the element with the atomic mass of 178.5
    12·1 answer
  • The bond between carbon and hydrogen is one of the most important types of bonds in chemistry. The length of an H—C bond is appr
    13·1 answer
  • If an Alkene contains 5 carbon atoms how many hydrogen atoms will it contain
    12·1 answer
  • What happens because of nuclear fusion?
    10·1 answer
  • Which would most likely be the pH of a highly-corrosive acid?<br> 1<br> 5<br> 8<br> 11
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!