The scientific method is a series of sequential steps used to build scientific knowledge. In the scientific method, the collection of data is a previous step before making conclusions from these data.
- The statement 'Collecting research data is the final step in the scientific method' is FALSE.
The steps of the scientific method include:
- to make one particular observation of some aspect of the natural world in order to formulate one question from such observation
- to propose a possible explanation (hypothesis) in order to explain this question
- to test the hypothesis by collecting experimental and/or observational data
- to examine the collected data in order to accept or reject the working hypothesis
- to make a conclusion from the results
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The equilibrium reactions pertinent to an aqueous solution of Ag2CO3 in which physical states are not considered is:
<h3>What are equilibrium reactions?</h3>
An equilibrium reaction is a chemical reaction process in which the reactants remain in a steady and stable condition both previously(reactant) and after the reaction is completed(product).
A reaction is considered to be at thermodynamic equilibrium when a reaction meets all three categories of equilibrium;
- Equilibrium of temperature
- Equilibrium in the chemical reaction.
- Equilibrium with the surrounding factors like pressure.
The equilibrium reactions pertinent to an aqueous solution of Ag2CO3 is:
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The region of the spectrum that best corresponds to light with a wavelength equal to;
1) The diameter of a hydrogen atom is; X-ray
2) The width of your pinky finger; microwaves.
3) The size of a virus; X-ray and Ultraviolet rays.
<h3>Electromagnetic spectrum</h3>
- From online tables, the diameter of an hydrogen atom is approximately 1 × 10^(-10) m but according to electromagnetic spectrum, any wavelength between 10^(-8) m and 10^(-12) m is an x-ray.
- From online tables, width of your pinky finger is 1.06 × 10^(-2) m but according to the electromagnetic spectrum the range between 1 and 10^(-3) m corresponds to microwave.
- The size of a virus has the range from 2 × 10^(-9) m to 4 × 10^(-7) m. This Range falls into x-ray or ultraviolet rays.
The complete question is;
What region of the spectrum best corresponds to light with a wavelength equal to:
(1) the diameter of a hydrogen atom
(2) the width of your pinky finger
(3) the size of a virus
Choices:
(A) radio
(B) mircowave
(C) infrared
(D) visible light
(E) gamma ray
(F) x-ray
(G) ultraviolet
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Answer:
People use their card for a purchase they can’t afford or want to defer payment, and then they make only the minimum payment that month. Soon, they are in the habit of using their card to purchase things beyond their budget. Since they are making only the minimum monthly payment, it won’t seem to matter much if their credit card balance gets a bit larger. This is a quick illustration to show how their “small balance” of just a few thousand dollars can really mean paying more than double that amount over the years because of interest. Also, when they are trapped in this mindset, their balance barely budges. With a debt of $5,000 and a minimum monthly payment of $150 (at 3% of the total balance), they will only be paying $47.30 each month toward their principal. The rest goes toward their interest accrued.
