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Vlad [161]
3 years ago
12

I NEED HELP NOW PLEASE I KNOW ITS A LOT BUT I REALLY NEED HELP LIKE DESPERATELY

Chemistry
1 answer:
Montano1993 [528]3 years ago
3 0
Sorry but do you have any clearer photos? Or can you leave the question below I’ll gladly help
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La manifestación de un huracán, el movimiento de los aerogeneradores cuando el viento alcanza una velocidad de 3 a 4 metros por
Arturiano [62]

Answer:

Ambos son ejemplos de procesos de transformación de la energía.

El ejemplo del aerogenerador transforma la energía cinética traslacional del viento en energía cinética rotacional del aerogenerador y pérdidas debido a la fricción, la cual es en forma de calor.

En cambio, el ejemplo del hervido del agua es el ingreso de calor por la combustión de madera para aumentar su energía interna.

Explanation:

Son ejemplos de procesos de transformación de energía, por el Principio de Conservación de la Energía se sabe que la energía total de un sistema no se crea ni se destruye, solo se conserva.

El ejemplo del aerogenerador transforma la energía cinética traslacional del viento en energía cinética rotacional del aerogenerador y pérdidas debido a la fricción, la cual es en forma de calor.

En cambio, el ejemplo del hervido del agua es el ingreso de calor por la combustión de madera para aumentar su energía interna.

8 0
3 years ago
How many valence electrons are in two fluorine atoms
olga nikolaevna [1]

Answer:

If both fluorine atoms are combine than each atom have 8 valance electrons and total valance electrons in both atoms are 16.

Explanation:

Fluorine is halogen atom. The elements of group 17 are called halogens. These are six elements Fluorine, Chlorine, Bromine, Iodine, Astatine. Halogens are very reactive these elements can not be found free in nature. Their chemical properties are resemble greatly with each other. As we move down the group in periodic table size of halogens increases that's way fluorine is smaller in size as compared to other halogens elements.

There seven valance electrons in each halogen atom. They need one electron to complete the octet.

Fluorine atom combine with its another atom through covalent bond and share its one of valance electron with other atom thus both have 8 valance electrons and total valance electrons in both atoms are 16.

8 0
3 years ago
In an experiment, what is the purpose of the control group?
Burka [1]

A control group is the comparison group that helps to "make sure your experiment works." A control group is separated from the rest of the experiment and nothing happens to it kinda like a controlled variable.  Controlled variables are the variables in a experiment that remains the same for example a temperature, time, type of products, etc..

Hope this helps!

7 0
3 years ago
Read 2 more answers
What units do we use to measure mass?
MA_775_DIABLO [31]

Answer:

We mostly use Kilograms and grams to measure mass =)

Explanation:

4 0
3 years ago
What is the value of q when the solution contains 2.00×10−2 m sr2+ and 1.50×10−3m cro42−?
Law Incorporation [45]
Answer is: ion product for strontium chromate is 3·10⁻⁵.<span>
Balanced chemical reaction (dissociation) of strontium chromate:
</span>Sr²⁺(aq) + CrO₄²⁻(aq) → SrCrO₄.<span>
Qsp(</span>SrCrO₄) = c(Sr²⁺)·(CrO₄²⁻).<span>
c(</span>Sr²⁺) = 2.00·10⁻² M.
c(CrO₄²⁻) = 1.50·10⁻³ M.
Q = 2.00·10⁻² M · 1.50·10⁻³ M.
Q = 0.00003 = 3·10⁻⁵ M².
5 0
3 years ago
Read 2 more answers
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