Earth's internal heat budget is fundamental to the thermal history of the Earth. The flow of heat from Earth's interior to the surface is estimated at {\displaystyle 47\pm 2} terawatts (TW)[1] and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust, and the primordial heat left over from the formation of the Earth.[2]
Earth's internal heat powers most geological processes[3] and drives plate tectonics.[2]Despite its geological significance, this heat energy coming from Earth's interior is actually only 0.03% of Earth's total energy budget at the surface, which is dominated by 173,000 TW of incoming solar radiation.[4] The insolation that eventually, after reflection, reaches the surface penetrates only several tens of centimeters on the daily cycle and only several tens of meters on the annual cycle. This renders solar radiation minimally relevant for internal processes.[
Answer: The forensic examination of substances involve a preliminary flame test.
Explanation:
The forensic chemical analysis of samples involves the flame testing which is one of the preliminary test. The materials are burned on a flame and the color of the flame is considered indicative of the elements present in the material.
The substances like Borax (sodium borate), Copper(II) sulfate, and boric acid burn with a characteristic green flame.
Going down a group the acid strength increases because the bond strength decreases as a function of increasing size of the nonmetal, and this has a larger effect than the electronegativity.
<h3>What is Electronegativity? </h3>
A functional group or an atom's propensity to draw electrons to itself is referred to as its "electronegativity," which is a chemical attribute. An atom's atomic number and the separation between its valence electrons and charged nuclei have an impact on how electronegativity is determined.
For an atom to be able to draw electrons, it must be electronegativity. It varies in direct proportion to the gap between an atom's attraction to the electron and its potential for ionisation.
To learn more about electronegativity visit:
brainly.com/question/17762711
#SPJ4
I believe the answer is B, or option 2. It makes the most sense, and is a fact.
Answer:
the correct answers is "neutralize"
Explanation:
When an acid is related to a base or also called an alkali and they reach a pH of 7, this acid will be neutralized or it will be canceled as the question says.
This happens so it reaches an equilibrium between both compounds, where the solution medium where these two compounds are is NEITHER ACID NOR BASIC, that is why it is called NEUTRAL medium.
Whenever you read that the pH of a solution is balanced, a neutralized acid, or a ph7 it means that the solution is NEUTRAL.