Which of the following is not an example of chemical weathering?a. the oxidation of iron
b. the formation of clay
c. the reaction of limestone with acid rain
d. the breaking of a rock into smaller pieces

Answers

Answer 1

Answer: D. is not chemical weathering.
We know this because when iron oxides, it is reacting with oxygen in the air, with is therefore a chemical change.
When clay forms, it's from the chemical deposition of rocks like granite, which makes it a type of chemical weathering.
Finally, limestone reacting with acid rain is a chemical change, which makes it chemical weathering.
A rock being broken down does not change the chemical structure of the rock, so it is a physical change, and physical weathering, not chemical.

Answer 2

Answer:

The answer is D i just took the test and got it correct!

Related Questions

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All of the statements are true about the arrangement of elements in the periodic table EXCEPT that theA) inert gases are in the group farthest to the right. B) metals are found on the left side of the periodic table. C) rare earth elements are in the first column, on the left. D) transition metals are in the center of the periodic table.
Fter a radioactive atom decays, it is the same element that it was before with no measurable change in mass. Which kind of decay has occurred, and how do you know?
Uses a special type of paper to separate liquids based on their different densitiesa. filtrationb. distillationc. crystallizationd. chromatography
A sample of a white solid contains 0.212 g of magnesium and 0.140 g oxygen. What is the empirical formula of this compound?

During which month does the Sun appear to rise farthest north of due east for an observer in New York State?

Answers

Since the Summer solstice is when the sun is highest in the sky and the solstice is in June, that's your answer :)

1. In general, the nucleus of a small atom is stable. Therefore, over very short distances, such as those in a small nucleus, a. the strong nuclear force is much greater than the electric force.
b. the electric force is much greater than the strong nuclear force.
c. the strong nuclear force equals the electric force.
d. the strong nuclear force and the electric force are both attractive.
9. Uranium-238 undergoes alpha decay. Therefore, uranium-238 will
a. remain stable.
b. change into a different element altogether.
c. emit neutral particles and no energy.
d. none of the above

Answers

1. Answer;

a. the strong nuclear force is much greater than the electric force.

Explanation;

For an atom to be stable it means it has enough amount of binding energy to hold its nucleus together permanently.
Therefore, an unstable atom lacks enough amount of binding energy to hold its nucleus permanently and thus undergoes decay to achieve stability. Unstable atoms are therefore referred to being radioactive.
Small atoms are stable; this is because they have equal number of protons and neutrons and thus the protons and neutrons fill up energy levels while maximizing the strong force binding the nucleus together.

9. Answer;

b. change into a different element altogether.

Uranium-238 undergoes alpha decay. Therefore, uranium-238 will change into a different element altogether.

Explanation;

Unstable atoms undergo radioactive decay in order to achieve stability of their nucleus.
Uranium-238 is an example of such atom, which may undergo decay to achieve stability.
Alpha decay is one of the types of decays, others being beta decay and gamma decay. In alpha decay the radioactive isotope undergoes decay such that its mass number is decreased by four and its atomic number is decreased by two.
Therefore, Uranium-238 undergoes alpha decay to form a different element whose mass number is 234 and atomic number is 90, known as thorium-234.

1. In general, the nucleus of a small atom is stable. Therefore, over very short distances, such as those in a small nucleus,

a. the strong nuclear force is much greater than the electric force.

9. Uranium-238 undergoes alpha decay. Therefore, uranium-238 will

b. change into a different element altogether.

Hope these answer the questions. Have a nice day.

The reason the vapor pressure increases with increasing temperature is due to the increased kinetic energies of the gas molecules.TRUE
FALSE

Answers

True. More energy will mean the molecules will move faster, having more kinetic energy

How does the rule of zero charge help you predict the formula of an ionic compound?

Answers

Overall the ionic compound cannot be charged, so all charges of the ions must be balanced. This means if you know the charge of 1 ion (E.G. Ca2+ ion) and you know the charge of the other ion (E.G. Cl1-) then you can work out that to make the overall charge 0, there must be double the amount of chlorine ions than calcium ions present. From this, you can work out the formula must be CaCl2.

How many molecules are there in 4.00 moles of glucose

Answers

i got 20.88 x 10^23 to be the answer

Final answer:

The total amount of energy in the cooler remains the same. The warm soda transfers its heat energy to the ice, causing the soda to cool and the ice to melt. The cooler, soda, and water from the melted ice eventually reach a thermal equilibrium where they have the same temperature.

Explanation:

In the scenario where a student puts a warm can of soda in a cooler filled with ice, the amount of thermal energy in the cooler's system changes due to the process of heat transfer. This process follows the second law of thermodynamics which stipulates that heat tends to flow from hotter objects to colder objects until they reach equilibrium.

In this case, the warmer soda will transfer its heat to the colder ice. During this process, the ice will absorb the heat without a rise in temperature until all of it has melted. This is because this absorbed energy is used to break the bonds holding the ice molecules together in a solid state, causing a phase change to liquid water.

Simultaneously, the soda can's temperature drops as it loses heat to the ice. Eventually, everything in the cooler—the soda, the melted ice water, and the air within—will reach the same temperature, marking the achievement of thermal equilibrium. Therefore, the total amount of energy in the cooler remains the same, it's just transferred (not lost or gained). The energy initially within the can of soda is transferred to the ice, and the overall rise in the cooler’s temperature represent this energy transfer.

Learn more about Heat Transfer here:

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26 Which substance is an electrolyte?(1) C6H12O6(s) (3) NaOH(s)(2) C2H5OH(L) (4) H2(g)

Answers

Answer: Option (3) is the correct answer.

Explanation:

When a compound dissolved in solution dissociates into ions then the solution is able to conduct electricity is known as an electrolyte.

This means that ionic molecules are able to conduct electricity because they are able to dissociate into ions.

Thus, we can see that out of the given options NaOH is ionic in nature hence, it is an electrolyte.

Whereas $C_(6)H_(12)O_(6)$ , $C_(2)H_(5)OH$ , and $H_(2)$ are not ionic in nature therefore, they are not electrolyte.

Final answer:

An electrolyte is a substance that produces an electrically conducting solution when dissolved in water. Electrolytes are typically salts that dissociate into ions. Out of the given options, NaOH is an electrolyte as it can dissociate into Na+ and OH- ions. The correct option is 3.

Explanation:

An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. It is typically formed when a salt dissociates into its component ions.

The free ions in the solution interact with the polar solvent (water), allowing the solution to conduct an electric current. In the options given, NaOH(option 3) is considered an electrolyte as it can dissociate into Na+ and OH- ions, thereby allowing the solution to conduct electricity.The correct option is 3.