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Alik [6]
3 years ago
14

Explain the difference between a sea-level transgression and regression.

Chemistry
2 answers:
Alexeev081 [22]3 years ago
7 0
Marine regression means that, submerged sea floor are exposed. It exposes the sea bottom while the transgression may result into flooding. A sea level transgression or marine transgression means when the water level or sea level arises in land, it also means that the sea level will move towards higher land. 
Kaylis [27]3 years ago
5 0

Transgression is when the sea-level rises, pushing the coast line inland. Regression is the sea-level falling, pushing the coastline out towards the ocean.

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A beaker filled with freshwater has a p h balance of 6.65. geraldo wants to model the effect of acids on the ph of water for a g
kvv77 [185]

Geraldo can add a pollutant with slightly basic nature so he will have a solution of neutral pH of 7.

<h3>What is pH?</h3>

The pH of a solution is the negative logarithm to base ten of the hydrogen ions concentration of the solution.

The pH of 6.5 means that the solution is acidic.

By adding a pollutant which is slightly basic in nature, Geraldo will have a solution of neutral pH which is a pH of 7.

Learn more about pH at: brainly.com/question/24595796

4 0
2 years ago
Nitroglycerine decomposes violently according to the chemical equation below. What mass of carbon dioxide gas is produced from t
AveGali [126]

Answer : The mass of CO_2  produced is, 7.74 grams

Solution : Given,

Mass of C_3H_5(NO_3)_3 = 13.3 g

Molar mass of C_3H_5(NO_3)_3 = 227 g/mole

Molar mass of CO_2 = 44 g/mole

First we have to calculate the moles of C_3H_5(NO_3)_3.

\text{ Moles of }C_3H_5(NO_3)_3=\frac{\text{ Mass of }C_3H_5(NO_3)_3}{\text{ Molar mass of }C_3H_5(NO_3)_3}=\frac{13.3g}{227g/mole}=0.0586moles

Now we have to calculate the moles of CO_2

The balanced chemical reaction is,

4C_3H_5(NO_3)_3\rightarrow 12CO_2(g)+6N_2(g)+10H_2O(g)+O_2(g)

From the reaction, we conclude that

As, 4 mole of C_3H_5(NO_3)_3 react to give 12 mole of CO_2

So, 0.0586 moles of C_3H_5(NO_3)_3 react to give 0.0586\times \frac{12}{4}=0.176 moles of CO_2

Now we have to calculate the mass of CO_2

\text{ Mass of }CO_2=\text{ Moles of }CO_2\times \text{ Molar mass of }CO_2

\text{ Mass of }CO_2=(0.176moles)\times (44g/mole)=7.74g

Thus, the mass of CO_2  produced is, 7.74 grams

4 0
3 years ago
Round 23.455 to 4 significant digits:
Allisa [31]
23.46, significant numbers are any non-zero numbers and any zeros after non-zero numbers in a decimal
8 0
3 years ago
Read 2 more answers
A hypothetical element has two main isotopes
uysha [10]

100%-64% to obtain the remaining% of the isotopes

= 36%

then,

atimic weight= (64×51) + (36×51)

=5100 amu

5 0
3 years ago
What other substances are considered pure substances
EastWind [94]
I think C, Elements is the only pure substance

Hope this helps
7 0
3 years ago
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