Answer: 6 total atoms
Explanation:
PLEASE HRLP IM BEGING TIMED: science
What happens when two positively charged objects move closer to each other?
A.Both charges become negative.
B.One charge becomes negative.
C.They will attract each other.
D.They will repel each other.
Answer: If two positive charges interact, their forces are directed against each other. The two charges repel each other.
Explanation: The same occurs with two negative charges, because their respective forces also act in opposite directions.) The electric field and resulting forces produced by two electrical charges of the same polarity.
Good luck luv.
Which of these describes “Al”?
atomic mass
chemical symbol
atomic number
none of the above
what describes “Al” is chemical Symbols.
It is not atomic mass because atomic mass is the quantity of matter contained in an atom of an element.
It is not atomic number because it's the number of proton in an atom of an
element.
The above description "Al" is a chemical symbols.
Chemical symbols are used to represents elements in the periodic table.
The element represented is aluminium.
learn more about chemical symbols: https://brainly.com/question/18919028?referrer=searchResults
What is required for two atoms to share electrons equally in a chemical bend?
Answer: Nonpolar Covalent Bond
Explanation: A Nonpolar Covalent Bond is created when atoms share their electrons equally. This usually occurs when two atoms have similar or the same electron affinity. The closer the values of their electron affinity, the stronger the attraction. This occurs in gas molecules; also known as diatomic elements.
The branch of chemistry that deals with the interconversion of electrical and chemical energy is called .
Answer:
Electrochemistry
Explanation:
Which statement describes the motion of the ice particles in the ice/water bath between minutes 5 and 20?
Choose the correct answer.
Particle motion stays the same because temperature does not change.
Particle motion stays the same because the ice is not completely melted yet.
Particle motion increases because thermal energy is being transferred to the ice.
Particle motion decreases because thermal energy is being transferred away from the ice.
Explanation:
The ice cube which was solid has turned into the liquid water because the air temperature is warmer than the freezers. Which means the ice particles gather heat energy from the warmer air. Therefore the ice particles have enough energy to break apart (melt)into smaller particle arrangements.
I do believe i need help.....
Answer:
C,D, and A I believe
Explanation:
What would happen if we didn’t have the Milky Way
What is true when a reaction has reached equilibrium?
A. The reaction has stopped.
B.The reaction is faster in the forward direction.
C. The reaction rate is equal in both directions.
D.The reaction is faster in the reverse direction.
A reaction is said to have reached equilibrium when the reaction rate is equal in both directions (c).
Like, take the example of copper in copper sulphate solution. When you add Cu to CuSO4 soln., there won't be any change occurring as the reaction rate is equal (Cu is added to CuSO4 soln., there won't be any change as displacement reaction won't take place due to Cu being the same metal as in CuS04 soln...their reaction is the same).
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RainbowSalt2222 ☔
Apply: Many gyms and health clubs have steam saunas, which are small steam-filled rooms. Traditionally, steam saunas have a container of heated rocks. A small ladle of water is poured on the rocks in order to make the steam.
1. Use what you have learned so far about heat transfer to explain how hot rocks can be used to make steam?
2. Why do you think only a small ladle-full of water is poured on the rocks at one time?
Answer:
the heat vaporization of water is very high with small amounts of water you can vaporize the water as it hits the rocks into steam. (i think)
Explanation:
Do distilled water conduct electricity what will happen if we add sugar to it and then salted
Answer:
No, distilled water does not conduct electricity.If we were to add sugar then it will not conduct electricity, but if we were to add salt though it would conduct electricity.Explanation:
Violet light has a wavelength from 380 nm to 420 nm.
What velocity must a free electron have in order to exhibit the same wavelength as a violet photon with a
wavelength of 415 nm?
This question involves the concepts of de Broglie's wavelength and momentum.
The velocity of the electron must be "1754.27 m/s".
de Broglie's wavelength is a wavelength associated with a moving matter particle. It is connected to the momentum of the particle by the following formula:
[tex]P =\frac{h}{\lambda}\\\\mv=\frac{h}{\lambda}\\\\v=\frac{h}{m\lambda}\\\\[/tex]
where,
v = velocity of electron = ?
h = Plamk's Constant = 6.625 x 10⁻³⁴ J.s
m = mass of electron = 9.1 x 10⁻³¹ kg
λ = de Broglie's wavelength = 415 nm = 4.15 x 10⁻⁷ m
Therefrore,
[tex]v=\frac{6.625\ x\ 10^{-34}\ J.s}{(9.1\ x\ 10^{-31}\ kg)(4.15\ x\ 10^{-7}\ m)}[/tex]
v = 1754.27 m/s
Learn more about de Broglie's wavelength here:
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Help
What is the correct orientation of the bar magnet, based on the magnetic field
lines shown?
A. South pole on the top edge and north pole on the bottom edge.
B. North pole on the top edge and south pole on the bottom edge
C. South pole on the left end and north pole on the right end
D. North pole on the left end and south pole on the right end
Answer:
b
Explanation:
north is up south is bottom
Answer:
C. South pole on the left end and north pole on the right end
Explanation:
From the figure, we can conclude that the poles of the magnet are on either sides of the magnet
Therefore, options 1 and 2 are excluded
It is a convention that the magnetic field lines move out of the north pole of a magnet and into the south pole of the magnet
From the figure, we can see that the magnetic field lines are moving out from the right end and into the left end
This means that the north pole is at the right end and that the south pole is at the left one
What element does 'O' represent on the periodic table?
Answer:
OxygenExplanation:
how many moles are equal to 2.25 moles of sulfur dioxide
Answer:
6.02 x 10^23 (6.02 times 10 to the power of 23)
¿Qué relación existe entre la teoría del octeto de Lewis con los enlaces iónicos y
covalentes?
Por definición de enlace iónico, covalente y regla del octeto, la relación existente entre la teoría del octeto de Lewis con los enlaces iónicos y covalentes es que dichos enlaces se producen con el objetivo de completar la última capa de electrones y adquirir estabilidad.
Enlace iónicoPor un lado, se produce un enlace iónico entre átomos metálicos y no metálicos, donde los electrones se transfieren completamente de un átomo a otro. Durante este proceso, un átomo pierde electrones y otro los gana, formando iones. Por lo general, el metal cede sus electrones formando un catión al elemento no metálico, que forma un anión.
Enlace covalentePor otro lado, el enlace covalente es el enlace químico entre átomos donde los electrones se comparten, formando una molécula. Se establecen enlaces covalentes entre elementos no metálicos. El par de electrones compartidos es común a los dos átomos y los mantiene unidos.
Regla del octetoEn ambos casos se cumple con la regla del octeto, que establece que los átomos de los elementos se enlazan unos a otros en el intento de completar su capa de valencia con ocho electrones. Es decir que los átomos van a tender a ceder o compartir electrones para completar ocho electrones en la capa de valencia mediante un enlace iónico, covalente o metálico.
En otras palabras, el objetivo es tener la configuración electrónica del gas noble más cercano, teniendo así la última capa de electrones completa y adquiriendo estabilidad.
En resumenEn resumen, la relación existente entre la teoría del octeto de Lewis con los enlaces iónicos y covalentes es que dichos enlaces se producen con el objetivo de completar la última capa de electrones y adquirir estabilidad.
Aprende más:
https://brainly.com/question/17100232?referrer=searchResultshttps://brainly.com/question/21960608?referrer=searchResults
Question ( please help me )
1 . Which diagram shows pure substance that are elements
2. Which diagram shows pure substance are compounds
3. Which diagram shows a mixture of compounds
4. Which diagram shows a mixture of elements
5. Which diagram shows a mixture of an element and a compound
Answer:
1. F, H, E
2. A, D, I
3. G
4. E, B, H
5. C
Explanation:
Cryolite is an ore of aluminium used in the extraction of aluminium from bauxite;
it was found to have 33% sodium, 13% aluminium and 54% fluorine.
Work out the empirical formula.
20. Which of the following elements would you expect to lose one electron? Select all that apply.
.
Fluorine
Potassium
Chlorine
Sodium
Answer:
Sodium and Potassium only
a
A sample of gas has a volume of 3.50 L and a pressure of
125 mm Hg. What will the new pressure be when the volume
is decreased to 2.75 L? The temperature stays the same.
Answer:
159.09 mmHgExplanation:
The new pressure can be found by using the formula for Boyle's law which is
[tex]P_2 = \frac{P_1V_1}{V_2} \\[/tex]
where
P1 is the initial pressure
P2 is the final pressure
V1 is the initial volume
V2 is the final volume
From the question we have
[tex]P_2 = \frac{125\times3.50 }{2.75} = \frac{437.5}{2.75} \\ = 159.090909...[/tex]
We have the final answer as
159.09 mmHgHope this helps you
(i will give brainliest)
The following image shows what happens when the particles in a certain state occupy a space. What is the state of the substance that is occupying the space and how do you know?
A. The substance is a gas because the particles are spreading out to fill the space of the container.
B. The substance is a liquid because the particles inside are taking the shape of the container.
C. The substance is a mixture of a gas and a liquid because the particles are filling the space of the container.
D. The substance is a solid because the particles inside the box have a definite shape.
Answer:
A
Explanation:
The substance is a gas because the particles far randomly arranged and far apart from each other. This happens because when a substance is a gas, particles have weak attraction to each but a lot more kinetic energy which means the they move around all the time spreading out to fill the container. If it was a solid, then all the particles would be very close together and have a fixed position and if it was a liquid then the particles would be fairly close and moving around each other but as we can see in the diagram, all the particles are far apart confirming that it is a gas.
Answer:
the answer is A beacause the other person is right :)
Explanation:
please give them brainliest
Will tin reduce iron?
Answer: The iron equilibrium is the more positive, and so will go in the forward direction. The tin equilibrium is less positive (more negative), and will be driven backwards. So the tin(II) ions will reduce iron(III) ions to iron(II) ions. In the process, of course, the tin(II) ions will be oxidised to tin(IV) ions.
Explanation:
can I get some help.and no link I have the table already I just need the information. it's graded please
Answer:
You did very well and its correct.
Explanation:
Great Job!
how long does vacuum sealed raw meat last in the freezer?
Answer:
Frozen Meats – Frozen raw meats that are properly vacuum sealed can be stored in the freezer from 1-3 years depending on the type of meat. However, raw meat that is not vacuum sealed will only last 1-12 months depending on the meat.
Explanation:
hop this helps
Answer: Six months or three years
Explanation: Frozen meats, poultry, and fish can last in the freezer for up to six months and when they are vacuum sealed, frozen meats can stay fresh and free from freezer burn for up to 3 years.
Mention the type of
Reaction common
to organic compound-
Answer:
addition reactions, elimination reactions, substitution reactions, pericyclic reactions, rearrangement reactions, photochemical reactions and redox reactions
why does helium fusion require higher temperatures
Answer:
Nuclear fusion of hydrogen to form helium occurs naturally in the sun and other stars. It takes place only at extremely high temperatures. That's because a great deal of energy is needed to overcome the force of repulsion between the positively charged nuclei.
Explanation:
hope it helps
describe how modeling is useful in studying the structure of the atom.
Answer:
Scientists use models to study atoms because atoms are extremely small and can't even be seen. If atoms can't be seen, it's easier to study and.
Explanation:
hope it helps you
Drag the names to the order planets based their distance from the sun, beginning with the planet closet to the sun.
Answer: In this order
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Explanation:
Answer:
Mars.....................
How many moles of iron are in 50.0g of iron? How many iron atoms are in 59.0g of iron?
Answer:
[tex]50.0 \div 59.0 = 10[/tex]
right
what is the best way to study and understand electron configuration??
Answer:
You have to remember this memory aid, diagonals and all.
You have to keep a tight tally of the electrons you’ve used so far so you don’t go over the number of electrons in the element you’re working on.
You have to remember how many electrons fit into each subshell (s, p, d, f).
It takes a lot of time, especially when the element has more than 20 electrons.
Explanation:
What is the formula for the ionic compound formed by calcium and selenium?
Answer:
CaSe
Explanation:
not sure!!