CHEMISTRY HIGH SCHOOL

Describe 3 ways abrasion occurs in nature

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Answer 1
Answer: There are three ways of abrasion occurs in nature; the wind, waves, and gravity. Abrasion is the mechanical process of wearing away of a rock surface and the movement of the particles while transporting through the wind, waves, and gravity.

Related Questions

In the early 1880s, the British Scientist John Dalton worked to find the atomic mass of several common elements.How could knowing the atomic mass of an element help a chemist do his or her work? A. The atomic mass could be used to convert that element into another element. B. The atomic mass could be used to identify an element. C. The atomic mass could be used to calculate the number of isotopes formed by the element.
Sawing a board in half is an example of a chemical change
Identify each of the following as a representative element or a transition element:A) Lithium B) Platinum C) Promethium D) Carbon
If a crystal added to an aqueous solution causes many particles to come out of the solution, the original solution wasa. saturated.b. unsaturated.c. supersaturated.d. an emulsion.
Given the reaction below: N2O4 (g) ⇌ 2 NO2 (g)Kc= 4.2 What is the equilibrium concentration of N2O4 if the equilibrium concentration of NO2 is 0.785 M?

Explain how methane (ch4) and ethane (c2h6) demonstrate the law of definite composition and the law of multiple proportions

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Methane and ethane demonstrate the law of definite composition and the law of multiple proportions as these both compounds have the exact atoms but in different ratios.  

As for methane, it can be seen that every methane molecule contains 4 hydrogen atoms and 1 carbon atom. Where masses of carbon and hydrogen are in ratio - 12 g C / 4 g H -- reduce to 3g C/ 1 g H .

Ethane contains 2 carbon atoms and 6 hydrogen atom and their mass ratio will be  - 24 g C / 6 g H -- reduce to 4 g C/ 1 g H .

So both ethane and methane demonstrate the law of definite composition and the law of multiple proportions.

Law of definite composition: The elements which are present in the compound is combined in the same proportion by mass.

Law of multiple proportion: When two or more compounds are formed by the combination of two elements then the mass ratio of one element is combined with the fixed mass of the other element.

In case of methane, it consist of one carbon atoms and four hydrogen atoms implies that has definite composition. In terms of mass, in methane, carbon and hydrogen atoms are combined in a definite ratio i.e. 12 g C/ 4 g H. Thus, methane has definite composition.  

Now, carbon and hydrogen combines to give a class i.e. hydrocarbon. In this case, for every constant mass of carbon the ratio of hydrogen will always reduce to 4/3 ratio for the formation of ethane (hydrocarbon). Thus, law of multiple proportion followed.

Similarly, in case of ethane, this compound also consist of exact atoms but in different ratios.

In case of ethane, it consist of two carbon atoms and six hydrogen atoms implies that has definite composition. In terms of mass, in ethane, carbon and hydrogen atoms are combined in a definite ratio i.e. 24 g C/ 6 g H. Thus, methane has definite composition.  

Now, carbon and hydrogen combines to give a class i.e. hydrocarbon. In this case, for every constant mass of carbon the ratio of hydrogen will always reduce to a specific ratio for the formation of methane (hydrocarbon). Thus, law of multiple proportion followed.

The process of seeking facts that will lead to the truth is called _____.a. study
b. research
c. intuition

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The process of seeking facts that will lead to the truth is called _____.a. study
b. research
c. intuition
Without research you can not conclude if your statement or facts are right.
B. research you have to look things up and test things to know what ur dealing with and find the answers

HELP ME THE WHOLE PAGE !!!! Someone help please

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Answer:

In the image below

Explanation:

Hope this helps you :)

In Rutherford’s gold foil experiment, many of the alpha particles passed straight through the gold foil, completely undeflected. What did Rutherford conclude from this observation? A. Alpha particles have a positive charge.

B. Electrons have a negative charge.

C. An atom is made up of mostly empty space.

D. There is a dense area within an atom that has a negative charge.

Answers

Answer: C

Explanation:

Rutherford's Gold Foil Experiment

These were his conclusions.

  • Aimed beam of alpha particles at a thin piece of gold foil and found most of the particles passed through the gold foil without being scattered, except for a few particles.
  • He found the volume of an atom is mostly empty space.
  • He proposed there is a heavy, positively charged body at the center of each atom that contains most of the mass.
  • Electrons are throughout the atom.
  • Number of electrons outside the nucleus equals the number of protons in the nucleus. Atom is electrically neutral.

Calculate the number of molecules in 8.4 g of NaOH

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Molar mass NaOH = 40.0 g/mol

number of moles : 8.4 / 40.0 => 0.21 moles

1 mole ---------------- 6.02 x 10²³ molecules
0.21 moles ---------- ?

molecules :  ( 0.21 ) x  ( 6.02 x 10²³ ) / 1

= 1.264 x 10²³ molecules

hope this helps!

Which element, represented by X, reacts with fluorine to produce the compound XF2?

Answers

Elements in Group 2 of the periodic table.
Other Questions
The rate law for a hypothetical reaction is rate = k [A]2. When the concentration is 0.10 moles/liter, the rate is 2.7 × 10-5 M*s-1. What is the value of k?
What is the mass, in kilograms, of 3.28 x 103 mol of H2O?
Which type of chemical reaction does this equation exemplify?
at standard pressure how do the boiling point and the freezing point of NaCl compare to the boiling point and freezing point of H2O