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
Elanso [62]
3 years ago
15

Geologists can use a radioactive isotope's to help determine the age of some rocks. A. half-life B. growth rate C. double-life D

. all of these​
Chemistry
1 answer:
koban [17]3 years ago
6 0

Answer:

A) Half-life

Explanation:

The Half-Life is the time taken for a specified isotope's radioactivity to fall to half its original value. Which depending on how radioactive the isotope is, determined its age between different half-lives.

You might be interested in
What intermolecular force(s) is/are present in solid SO3?
guapka [62]

Answer:

1. London dispersion

Explanation:

Sulphur trioxide ( SO₃ ) -

The chemical compound SO₃ is planar in structure , the only intermolecular forces shown by SO₃ is the London forces .

dipole - dipole is not observed in this compound , as it is not possible to generate poles between the sulfur and oxygen atom due to very less difference in the electronegativity .

Hydrogen bonding is also not observed , because there is not hydrogen atom .

Hence , only London forces are observed in SO₃ .

5 0
3 years ago
What is the suns color
WINSTONCH [101]
The suns color is orange and yellow
3 0
3 years ago
Read 2 more answers
Hydrogen sulfide,H2S, is a very toxic gas with a smell of rotten eggs. using the following: H2S+3/2 O2=SO2+H2O H2+1/2O2=H2O S+O2
Serga [27]

Answer:

ΔH = -20kJ

Explanation:

The enthalpy of formation of a compound is defined as the change of enthalpy during the formation of 1 mole of the substance from its constituent elements. For H₂S(g) the reaction that describes this process is:

H₂(g) + S(g) → H₂S(g)

Using Hess's law, it is possible to sum the enthalpies of several reactions to obtain the change in enthalpy of a particular reaction thus:

<em>(1) </em>H₂S(g) + ³/₂O₂(g) → SO₂(g) + H₂O(g) ΔH = -519 kJ

<em>(2) </em>H₂(g) + ¹/₂O₂(g) → H₂O(g) ΔH = -242 kJ

<em>(3) </em>S(g) + O₂(g) → SO₂(g) ΔH = -297 kJ

The sum of -(1) + (2) + (3) gives:

<em>-(1) </em>SO₂(g) + H₂O(g) → H₂S(g) + ³/₂O₂(g) ΔH = +519 kJ

<em>(2) </em>H₂(g) + ¹/₂O₂(g) → H₂O(g) ΔH = -242 kJ

<em>(3) </em>S(g) + O₂(g) → SO₂(g) ΔH = -297 kJ

<em>-(1) + (2) + (3): </em><em>H₂(g) + S(g) → H₂S(g) </em>

<em>ΔH =</em> +519kJ - 242kJ - 297kJ = <em>-20 kJ</em>

<em />

I hope it helps!

5 0
3 years ago
Why is energy a conceptual model?
alexgriva [62]

Answer:

Conceptual energy modeling does not produce the same accurate results as energy modeling with building elements

3 0
3 years ago
What is the pH of a solution with [H-] = 4.3 x 10-4 M?
Temka [501]

Answer:

3.37

Explanation:

pH=-log(H3O+)

- Hope that helps! Please let me know if you need further explanation.

4 0
4 years ago
Other questions:
  • You've made the hypothesis that the less rainfall a cactus plant gets, the taller it will grow, since cactuses like dry conditio
    13·2 answers
  • What water freeze faster salt water or regular water
    12·1 answer
  • use the particle theory to explain why hot chocolate powder dissolves more rapidly in hot water than cold water
    15·1 answer
  • How many atoms are in caco4
    12·1 answer
  • What is semipermeable membrane?
    9·1 answer
  • Which is a reason that a chemical engineer would use a rate law for a reaction in a chemical plant?
    13·1 answer
  • In the nitrite ion (NO2-), __________. A) both bonds are single bonds B) both bonds are double bonds C) one bond is a double bon
    6·1 answer
  • Which of these describes a reason why nuclear power is important?
    13·1 answer
  • If 40 grams of NaCl was dissolved in 100 grams of water at 100 degrees Celsius, the solution would be.
    5·1 answer
  • For the reaction below, use the bond energies to calculate the net energy of reaction and state if reaction is exothermic or end
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!