Answer:
They cannot be broken down any further
Explanation:
An element is a substance that cannot be broken down into a simpler format. They are distinguished by a unique atomic number. The elements are organized by their atomic number in the periodic table, which highlights elements with similar properties.
explain why boiling is a reversible change
Answer:
This is a reversible change. Similarly, if you boil water, it evaporates and becomes water vapor. When you cool this vapor down, it turns back to water. A change which cannot happen backward, that is, it cannot be reversed is called an irreversible change.
Explanation:
When we boil water by heating, then it changes into steam. Now, if we cool the steam, then water is formed again. So, the changing of water into steam has been reversed by cooling. Thus, the boiling of water (or evaporation of water) is a reversible change.
which compound should have the largest lattice energy?
Answer:
From the given compounds MgO has the highest lattice energy.
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.
How viscosity affects the speed of the liquid in the convection cell.
Explanation:
eggsus8d8ruttuririiryrey
what weighs more a gallon of water or a gallon of butane
Answer:
a gallon of water weighs more than a gallon of butane
What do each of the' rings represent in the Bohr models?
Answer:
The energy levels or electron shells of an atom.
Answer:
Each ring represents a different energy level for the electrons. Each ring has a maximum number of electrons that it can hold. The first (inner) ring can only hold two electrons, the second level can hold eight, the third can hold 18 and the fourth holds 32.
Hope this helps :)
When you bend, stretch, or compress an object from its natural shape, it stores
Question 3 options:
Gravitational potential energy
Kinetic energy
Chemical energy
Elastic potential energy
Answer: The answer is elastic potential energy
Explanation: Potential energy is stored energy if something is elastic that means the shape or form of an object is being compressed from its original form. Like elastic girl from the incredibles lol. but anyways if you compare somehting to a rubber band it has elastic potential energy Thus the answer is D.
Hope this helps :).
When you bend, stretch, or compress an object from its natural shape, it stores Elastic potential energy.
What is elastic potential energy ?Elastic energy is the mechanical potential energy held in a material's or a physical system's configuration as it is subjected to elastic deformation as a result of work being done on it. Elastic energy is created when objects are momentarily crushed, stretched, or otherwise deformed.
Because it is stored in the bonds between atoms of an object or substance when it is momentarily stressed, elastic energy is a type of potential energy. The object may have been stretched or compressed, causing this stress.
An object's shape may change as a result of a force operating on it. If stretched or compressed, elastic things can store elastic potential energy. This occurs, for instance, when a spring is stretched or a catapult is utilized.
Thus, option D is correct.
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¿Qué fase de la materia se muestra en la imagen? *
solido
Explanation:
porque estan todos los puntos juntos
Joe the scientist wants to figure out if the weight of a bowling ball will affect how fast it rolls down a ramp. Joe builds a 15 foot long ramp that is 5 feet tall at the top. Joe believes that if he rolls the 6 pound bowling ball from the top of the ramp, then it will roll the fastest. Joe then gets several bowling balls that are identical except for their weight. The different weights are 6 pounds, 8 pounds, 10 pounds, 12 pounds, and 14 pounds. Joe starts by placing the 6 pound ball at the top of the ramp and he starts the timer at the same time he lets go. He stops the timer when the ball reaches the bottom of the ramp. Joe repeats this process for all of the bowling balls. Joe repeats this process for all of the bowling balls.
What’s the IV, DV, hypothesis and constant ?
Answer:
IV: The weight of the ball
DV: Time it takes for the ball to roll from top to bottom
Hypothesis: 6 pound bowling ball from the top of the ramp, then it will roll the fastest.
Constant: I dont know
Explanation:
a board measures 212 inches how many feet is this?
Answer: 17.7 feet, Its rounded up since the six repeats.
Which of the following statements about trash in the United States is FALSE? Each person produces about 2 kg of trash per day. There is nothing we can do to reduce the amount of trash we throw away. Most of our trash ends up in landfills. Some of the things we throw away are very hazardous.
Answer:
There is nothing we can do to reduce the amount of trash we throw away.
Explanation:
We can reuse and recycle the trash that we throw away, so we can do something to reduce the amount of trash that we throw
Which statements are true about light waves? (Select all that apply.)
Light waves are sun waves.
Light waves are frequency waves.
Light waves are electromagnetic waves.
Light waves are transverse waves.
PLEASE SELECT MORE THAN ONE
WILL MARK BRAINLY :D✌️
Answer:
only transverse and electromagnetic waves
Explanation:
Light waves are electromagnetic waves.Electromagnetic waves or EM waves exist waves that are created as a consequence of vibrations between an electric field and a magnetic field.
What are electromagnetic waves?In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, propagating via space, and having electromagnetic radiant energy. It contains radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays. All of these waves form parts of the electromagnetic spectrum.
Light waves are electromagnetic waves.Electromagnetic waves or EM waves exist waves that are created as a consequence of vibrations between an electric field and a magnetic field.
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How many moles of iron are in 50.0g of iron? How many iron atoms are in 50.0g of iron?
Answer:
50g iron comprises 5.376 × 1023 atoms.
Explanation:
Most elements are ____________. The _____________ elements on the left of the stair-step line on the ______________ of Elements are metals or metal-like _____________. Some of the physical properties of metals are ______________ (shininess) and ___________ density. They are also good conductors of ___________ and ______________. Metals can be hammered into __________sheets.
Answer:
metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster , malleable , ductile, opposite , shiny, moderately
Explanation:
metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster , malleable , ductile, opposite , shiny, moderately Is the answer.
(Hope this helps can I pls have brainlist (crown)☺️)
What equation explains the relation between amperes, watts and volts?
Break down the following equations into two half equations(One for oxidation, one or reduction )
1. Cu + 2Ag+ ➡️Cu2+ +2Ag
2. Cl2 +2I ➡️2cl-+I2
Answer:
see explanation
Explanation:
Break down the following equations into two half equations(One for oxidation, one or reduction )
1. Cu + 2Ag+ ➡️Cu2+ +2Ag
2. Cl2 +2I- ➡️I2 + 2Cl-
in reaction "1", the copper is being oxidized from 0 to +2 by losing 2 electrons
Cu---->Cu2+ + 2e-in reaction "2
in reaction "1" the silver is being reduced by gaining those 2 e-.
2Ag1+ + 2e----------->2Ag
In reaction "2", the iodine is being oxidized by losing 2 e-
2I- -------------> I2 + 2e
In reaction "2" the chlorine is being reduced by gaining those 2 e
Cl2 + 2e------------> 2Cl-
To solve such this we must know the concept of redox reaction. Therefore, the half reaction for the given reactions can be written as
1. Cu + 2Ag⁺ [tex]\rightarrow[/tex]Cu²⁺ +2A
Cu [tex]\rightarrow[/tex]Cu²⁺ + 2e⁻
2Ag⁺ + 2e⁻[tex]\rightarrow[/tex]2Ag
2.Cl[tex]_2[/tex]+2I⁻ [tex]\rightarrow[/tex]I[tex]_2[/tex] + 2Cl⁻
2I⁻[tex]\rightarrow[/tex] I[tex]_2[/tex] + 2e⁻
Cl[tex]_2[/tex] + 2e⁻-----------> 2Cl⁻
What is chemical reaction?Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.
Redox reaction is a chemical reaction where oxidation and reduction takes place simultaneously. Oxidation is loss of electrons and reduction is gain of electrons. The electron transfer from oxidant to reductant.
1. Cu + 2Ag⁺ [tex]\rightarrow[/tex]Cu²⁺ +2A
Cu [tex]\rightarrow[/tex]Cu²⁺ + 2e⁻
2Ag⁺ + 2e⁻[tex]\rightarrow[/tex]2Ag
2.Cl[tex]_2[/tex]+2I⁻ [tex]\rightarrow[/tex]I[tex]_2[/tex] + 2Cl⁻
2I⁻[tex]\rightarrow[/tex] I[tex]_2[/tex] + 2e⁻
Cl[tex]_2[/tex] + 2e⁻-----------> 2Cl⁻
Therefore, the half reaction for the given reactions can be written as above.
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List the 4 main components of air in their molecular form.
Answer:
Air is made up of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and other gases in meager amounts.
¿Quién estableció el concepto moderno de elemento?
Answer:
Robert Boyle
Explanation:
En muchos textos se suele considerar a Robert Boyle como el científico que introdujo en la Química un concepto de elemento diferente al empleado por los aristotélicos o por los alquimistas y que sirvió de antecedente al que formulara Lavoisier en 1789.
Fill in the [?]
1.7 km = [?]m
Give your answer in standard form.
Answer: 1.7 km = [1700]m
1.7 × 10^3
Explanation:
Answer:
1700 meters
Explanation: hope it helps.
Answer please
.............................................................
This is not exactly a answer you can use but this is some information that you can use to find out the answer.
You can usually confirm the charge associate degree particle unremarkably has by the element's position on the periodic table: The alkali metals (the IA elements) lose one negatron to create a ion with a 1+ charge. The alkaline-earth metal metals (IIA elements) lose 2 electrons to create a 2+ ion.
Nonmetals type negative ions (anions). A range 7|chemical element|element|gas} atom should gain 3 electrons to possess an equivalent number of electrons as AN atom of the subsequent gas, neon. Thus, a gas atom can type AN ion with 3 additional electrons than protons and a charge of 3−.
True or false: For a spontaneous redox reaction, the products are stronger oxidizing and reducing agents than the reactants.
Answer: False
Explanation: The stronger oxidizing agent, and stronger reducing agent are the reactants.
The given statement is false , for a spontaneous redox reaction, the reactants are stronger oxidizing and reducing agents than the products.
What are redox reactions?Redox reactions comprise of two parts a reduced part and an oxidized part, which occur simultaneously . The part which is reduced gain electrons and hence there is a increase in oxidation state of the species.
While, the part which is oxidized looses electrons and hence there is a decrease in oxidation state of the species.During redox reactions, there is no net change in the number of electrons . Electrons which are given off in oxidation are used up in reduction.
The ion or molecule which accepts electrons is called as oxidizing agent while the ion or molecule which donates electrons is called as a reducing agent.
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How many atoms are in 2.05 g of Na?
How many grams are in 4.5 x 1025 atoms of P?
THIS IS UR ANSWERPLS MARK ME AS BRAINLIEST..
Which chemical equation represents a redox reaction?
TiCl4(s) + 2H2O(g) – TiO2(s) + 4HCl(g)
--
CaO(s) + SiO2(s) – CaSiO3)
Fe2O3(s) + 2Al(s) — Al2O3(s) + 2Fe()
+
CaCO3(s) — Cao(s) + CO2(g)
Answer:
CaCO3 yields CaO + CO2
Exclamation
Since the Decomposition state of a redox involves a broken down compound, this equation proves that this is a DECOMPOSITION since it is being broken down.
PLS HELP: Endocrine Organs Crossword
Chemistry help!!
A student conducts an experiment to separate water into hydrogen and oxygen as shown below.
As a result the student collects 28.0 g of hydrogen and 224.0 g of oxygen. How many grams water did the student originally have involved in the experiment
The student originally has 252 grams of water in this experiment.
LAW OF CONSERVATION OF MASS:
The law of conservation of mass explains that matter (mass) can neither be created nor destroyed but can be changed from one form to another. This means that in a chemical reaction, the sum of the masses of the reactants must equate to the total mass of product(s). According to this question, a student conducts an experiment to separate water into hydrogen and oxygen. The student collects 28.0 g of hydrogen and 224.0 g of oxygen. Since hydrogen and oxygen are the constituent elements of water, the sum of their masses must equate the mass of water. Therefore, 224g of oxygen + 28g of hydrogen = 252g of water.Learn more at: https://brainly.com/question/24996173?referrer=searchResults
The graph below shows the solute concentration inside a paramecium over time. What is happening at the time indicated by the pointer?
Water is moving rapidly into the paramecium by osmosis.
Water is moving rapidly out of the paramecium as the contractile vacuole contracts.
The paramecium is having a meal.
Solutes from the surrounding water are diffusing through the cell membrane, causing the solute concentration inside the paramecium to rise.
The pointer indicated the point at which water is moving rapidly out of the paramecium as the contractile vacuole contracts.
The pointer specifically indicates where the water solute concentration dropped. In order for the solute concentration of the water to drop, more water would have to be added.This means that water from the paramecium moves into the surrounding water as the contractile vacuole contracts. Consequently, the solute concentration of the surrounding solution decreases. When water moves from the solution into the paramecium, the solute concentration increases and this forms a continuous cycle in the graph.More on water movement by osmosis can be found here: https://brainly.com/question/21395644?referrer=searchResults
what is Java ‽‽‽‽
[tex] \: [/tex]
Answer:
Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.
Explanation:
what is the context of that questing ?
just by itself 3 main answers :
an island
coffee from that island
a programming language
diagram 1 above shows equimolar samples of two gases inside a container fitted with a removable barrier placed so that each gas occupies the same volume. the barrier is carefully removed as the temperature is held constant. diagram 2 above shows the gases soon after the barrier is removed. which statement describes the changes to the initial pressure of each gas and the final partial pressure of each gas in the mixture and also indicates the final total pressure?
This problem is describing the state two gases have when separated and together as shown on the attached picture. First of all, diagram 1 shows how they are separated in two containers with apparently equal volumes, whereas diagram 2 shows the removal of the barrier so that they get mixed together.
In this case, we can analyze that each gas has its own pressure and due to the removal of the barrier, both pressure and volume undergo a change. Thus, we can infer that the final volume is doubled with respected to the initial one for each gas, causing the pressure of each gas to be halved and the total pressure the half of the added ones, in agreement to the Boyle's law (inversely proportional relationship between pressure and temperature).
Therefore, the correct choice is:
C. The partial pressure of each gas in the mixture is half its initial pressure; the final total pressure is half the sum of the initial pressures of the two gases.
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https://brainly.com/question/21184611How are covelant and ionic bonds different and what types of elements combine to form each?
Answer:
Ionic bonds result from the transfer of electrons from one atom to another
Explanation:
In covalent bonds, atoms share electrons, whereas in ionic bonds atoms transfer electrons. The reaction components of covalent bonds are electrically neutral, whereas for ionic bonds they are both charged.Covalent bonds are formed between two non-metals, whereas ionic bonds are formed between a metal and non-metal.
Answer:
Covalent bonds are defined as sharing of electrons, ionic bonds are the result of transferred electrons;
Covalent bonds form between non-metals (elements) and ionic bonds form between metal and non-metals (ions)
Can someone help me with my science it’s super hard :(
Answer: here is a description of what they look like since I cannot see the diagram.
Mitochondria- wavy line
Ribosomes- little dots
Chromosome- X
Nucleus- Circle with bite taken out of it
Endoplasm- Bubble
Nuclear membrane- Outer layer/bubble
Golgi-wavy circle thing
Vacuole- Bigger circle (but not nucleus)
Cytoplasm- its the jelly on the inside
Cell wall- only in plant cells, looks like a box
Cell membrane- The outmost part of the animal cell, the barrier.
I sure hope this helps!!!