Proton- positively charged
electron- negatively charged
neutron- no charged
you can remember by using the first letters which are PEN
Models are usually approximations, too simple and sometimes unrealistic.
Explanation:
A model is an abstraction of the real world. Models are used by scientists to mimic and gain better insights into how the real world looks like to a greater degree of accuracy. Here are some set backs of models;
- Limitations due to parameters that can be modeled; it is nearly impossible to incorporate all the elements of the real world into a model. A scientist may have limited resources to integrate different data sets to perfectly have a good picture of the real world.
- Models are approximations: the fact that models are not exact can be worrisome. Questions like to what extent are these scenarios rounded can be very difficult to come by with and this can spoil a good research.
- Over simplicity: most times when a model proves too complex to work with, some parameters are left out and this can cause a good model to be watered and not portray the real world at all.
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Answer:
D
Explanation:
Process of elimination. There is more than just water vapor in a vape so it can't be D, it isn't a cigarette so it can't be B, and A is just clearly not the answer haha.
The correct IUPAC name of the following structure CH3-CH2-CH=CH2 is But - 1 - ene
<h3>IUPAC rules for alkene nomenclature</h3>
- The parent alkene is chosen to have the longest carbon chain containing the carbon-carbon double bond.
- The alkane's suffix "ane" is changed to "ene."
- An alkene is referred to as a diene or triene depending on whether a double bond appears twice or three times in the parent chain.
- the location of side chains or double bonds denoted by the numbers 1, 2, 3, etc.
- The carbon atom in the double bond, which is written directly before the suffix "ene," receives the lowest number because it is the longest chain and is numbered from that end.
- If both sides of a double bond receive the same number as the chain is being numbered, the carbon chain is numbered so that the substituent receives the lowest number.
Hence the structure CH3-CH2-CH=CH2 is named on the basis of the above rule as but - 1 - ene.
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<u>Respuesta:</u>
16 gramos de vitamina C y 8 gramos de colorantes.
Explanation:
Debemos multiplicar el porcentaje de cada componente por la cantidad total (100 %) de zumo.
800 g de zumo = 100%
- Tenemos un 2 porciento (2 en 100 o 2/100) de vitamina C. Por lo tanto, la cantidad en gramos de vitamina C es:
2/100 x 800 g = 16 g
- Tenemos un 1 porciento de colorantes en el zumo (1/100). Por lo tanto, la cantidad en gramos de colorantes es:
1/100 x 800 g = 8 g