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Klio2033 [76]
4 years ago
15

Provide two examples of things that apply to both relative and absolute dating.

Chemistry
1 answer:
Paul [167]4 years ago
5 0
Relative dating 
<span>1) The law of superposition states that, in an undisturbed stratigraphic environment, the oldest layers of strata are beneath the younger ones. </span>

<span>2) The law of original horizontality states that layers, when originally deposited, are fairly horizontal; folds and tilted beds are consequences of deformation that post-dates deposits. </span>

<span>3) The law of original continuity states that sedimentary layers generally accumulate in continuous sheets. </span>

<span>4) The law of cross-cutting relations states that cutting features are younger than the cut strata. </span>

<span>5) The principle of baked contacts states that igneous intrusions metamorphose surrounding rock, and the metamorphosed rock is older than the intrusion. </span>

<span>6) The principle of inclusions states that, if a layer of sediment over an igneous layer includes pebbles of the igneous rock, then the sediment is younger. </span>

<span>Absolute dating </span>
<span>1) Radioactive isotopes are unstable and decay at a constant rate, allowing geochronologists to determine a numerical age. Radiocarbon dating is used to date organic remains. </span>

<span>2) Rate of tree growth, shell growth, and production of other organic material </span>

<span>3) Rate of snow accumulation, clastic sediment deposition, and chemical sediment precipitation</span>
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What are 3 effects of nuclear radiation
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In a nuclear explosion the human body can be irradiated by at least three processes. The first, and most major, cause of burns is due to thermal radiation and not caused by ionizing radiation. Thermal burns from infrared heat radiation, these would be the most common burn type experienced by personnel.

8 0
3 years ago
Copy and complete the concept map using the following:
lapo4ka [179]

Answer:

a) Alkali

b) Na

c) Cs

d) Inner Transition

e) actinides

f) Fe

g) Hg

Explanation:

  • K, Na and Cs are all Alkali Metals
  • Fe, Hg and Ag are all Transition Metals
  • actinides and lanthanides are known as the Inner Transition Metal

7 0
3 years ago
The decomposition of potassium chlorate yields oxygen gas. If the yield is 895%, how many grams of KClO3 are needed to produce 1
harina [27]

The answer is either 38 g or 40.g KCLO3. If it 95% instead of 895%.

4 0
3 years ago
A sample of an ideal gas at 1.00 atm and a volume of 1.84 L was placed in a weighted balloon and dropped into the ocean. As the
Inessa05 [86]

Answer:

0.0613 L

Explanation:

Given data

  • Initial pressure (P₁): 1.00 atm
  • Initial volume (V₁): 1.84 L
  • Final pressure (P₂): 30.0 atm
  • Final volume (V₂): ?

Since we are dealing with an ideal gas, we can calculate the final volume using Boyle's law.

P₁ × V₁ = P₂ × V₂

V₂ = P₁ × V₁ / P₂

V₂ = 1.00 atm × 1.84 L / 30.0 atm

V₂ = 0.0613 L

6 0
4 years ago
The amount of I₃⁻(aq) in a solution can be determined by titration with a solution containing a known concentration of S₂O₂⁻³(aq
puteri [66]

Answer: 0.22 M

Explanation:

2S_2O_3^{2-}(aq)+I_3^-\rightarrow S_4O_6^{2-}(aq)+3I^-(aq)

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Molarity=\frac{moles}{\text {Volume in L}}

moles of Na_2S_2O_3=Molarity\times {\text {Volume in L}}=0.440\times 0.025=0.011moles

Na_2S_2O_3\rightarrow 2Na^+S_2O_3^{2-}

Thus moles of S_2O_3^{2-} = 0.011

According to stoichiometry:  

2 moles of S_2O_3^{2-}(aq) require 1 mole of I_3^

Thus 0.011 moles of S_2O_3^{2-}(aq) require=\frac{1}{2}\times 0.011=5.5\times 10^{-3} moles of I_3^-

Thus Molarity of I_3^-=\frac{5.5\times 10^{-3}}{0.025L}=0.22M

Therefore, the molarity of I_3^- in the solution is 0.22 M

5 0
3 years ago
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