AYUDA DOY CORONA

Numero masico del oro

Answers

Answer 1

Answer:

huh what?

Explanation:

Answer 2

Is  196,96657  u

I hope I've helped :)


Related Questions

What characteristic of an atom influences the behavior of the valence electron the most in an atom?
(Hint: Consider the charge of the particles)?

Answers

Answer:

The higher its electronegativity, the more an element attracts electrons.

Explanation:

Electronegativity is a property that describes the tendency of an atom to attract electrons (or electron density) toward itself. An atom's electronegativity is affected by both its atomic number and the size of the atom.

¿Cuántos ml de alcohol contiene una lata de cerveza de 375 ml si tiene una concentración 4% v/v?

Answers

Answer:

15 mL

Explanation:

El valor de concentración de 4% v/v nos dice que de cada 100 mL de cerveza, 4 mL son de alcohol.

Con eso en mente podemos calcular los mL de alcohol presentes en 375 mL, de la siguiente forma:

375 mL * 4/100 = 15 mL

En 375 mL de cerveza de concentración 4% v/v, hay 15 mL de alcohol.

why atoms of magnet differ from normal atoms?


Copied answers ❌❌❌​

Answers

Answer:

The magnetic field of an atom, say H (one electron revolving around a proton) is composed of two separate contributions: an orbital magnetic moment and a spin magnetic moment. We get magnetic moments because of electromagnetic induction associated with each type of electron motion. The electron revolving around the proton with a certain angular momentum is related to the associated orbital magnetic moment (and, yes, we model it as a wire loop with current expressed in terms of the orbital velocity). This can be calculated using elementary mechanics. The spin magnetic moment is a little trickier because it is caused by the intrinsic spin of the electron which is a quantum phenomenon; therefore, this spin magnetic moment can only be calculated using quantum mechanics. In the end, we get a certain net magnetic moment associated with this motion of the electron in an atom. It is important to notice that this atom acts as a magnetic dipole (remember, as of yet, magnetic monopoles don't exist!).

If we take a bulk magnet like you might have on your fridge, it would be composed of atoms. Each atom operates as a magnetic dipole, but due to internal atomic structures, the atoms actually align themselves into separate magnetic domains, each with a net magnetic moment (caused my individually adding up those atomic dipole moments). In a common magnet (ferromagnet), these domains all point the same direction and stay that way, creating a permanent bulk magnetic dipole.

So in a way, there is no difference between the magnetic field of an atom and that of a magnet because one is simply a sum of the other, making both magnetic dipoles. Of course, here we see that there's nothing that fundamental about the magnetic force. In reality, the magnetic force is a relativistic effect caused by the movement of a charged particle, making electricity (i.e. charge) the underlying property at work here. Electromagnetic induction is really a shortcut to understand the magnetic force without worrying about relativistic mechanics. If we were to discover magnetic monopoles (i.e. "magnetic" charge), this would re-write a lot that we know about electromagnetism because we couldn't label all magnetic forces as by-products of moving electric charge

The field around a negatively charged object is symbolized by vectors pointing toward the sphere because a test charge, which is ______ by definition, would travel along such a vector if released in the field.

Positive
Negative

Answers

Answer:

Positive

Explanation:

What are this element’s chemical and physical properties? Explain how the chemical properties affect the physical properties of an element.

Answers

Answer:

What element is this. Would you mind inserting a picture or naming the element in the comments section

What are the reasons for Small Island States are particularly concerned with reducing carbon dioxide emissions

Answers

Answer:

- Because it could lead to rise in sea levels which could cause heavy floods in the Small Island States and thus destroy their economies.

Explanation:

The reason is that too much carbon dioxide emissions trapped in the atmosphere can cause global worming which includes climate change and rise in sea levels.

Now, due to the fact that we know islands are lands surrounded by water, a rise in sea level of by as small as 1 metre could be very dangerous to these small islands in that they could cause them to become flooded and thus cause harm to lives and properties thereby damaging their economies.

which organ is used to detect the product of neutralisation reaction

Answers

Answer:

Neutralization reactions occur when two reactants, an acid and a base, combine to form the products salt and water.

The organ that is used to detect the product of a neutralization reaction is the sense of taste.

When a neutralization reaction occurs between an acid and a base, it results in the formation of a salt and water. The salt produced in the reaction may have a distinct taste, depending on its chemical properties. For example, when hydrochloric acid reacts with sodium hydroxide, the products are sodium chloride and water. Sodium chloride, commonly known as table salt, has a characteristic salty taste.

Similarly, other salts formed from neutralization reactions may have different tastes. For instance, magnesium hydroxide reacting with acetic acid produces magnesium acetate, which has a slightly sweet taste. By using our taste buds, particularly on the tongue, we can detect and identify the taste of the salt formed during a neutralization reaction.

Learn more about Neutralization Reaction here:

https://brainly.com/question/23008798

#SPJ2

What purpose does ammonium lauryl sulfate serve when used as a surfactant? Where is it
commonly used?

Answers

Answer:

SLS functions in cleaning product as a surfactant, wetting surfaces, emulsifying or solubilizing oils, and suspending soil so that they can be rinsed away. This ingredient contributes foaming properties to cleaning products. SLS is safe for use in cleaning products.

Sodium lauryl sulfate and ammonium lauryl sulfate are surfactants that help with the mixing of oil and water. As such, they can clean the skin and hair by helping water to mix with oil and dirt so that they can be rinsed away or suspend poorly soluble ingredients in water.

Safety Information:

The U.S. Food and Drug Administration (FDA) includes sodium lauryl sulfate on its list of multipurpose additives allowed to be directly added to food. Sodium lauryl sulfate and ammonium lauryl sulfate are also approved indirect food additives. For example, both ingredients are permitted to be used as components of coatings.

The safety of sodium lauryl sulfate and ammonium lauryl sulfate has been assessed by the Cosmetic Ingredient Review  (CIR) Expert Panel on two separate occasions (1983 and 2002), concluding each time that the data showed these ingredients were safe in formulations designed for brief, discontinuous use, followed by thorough rinsing from the surface of the skin. In products intended for prolonged contact with skin, concentrations should not exceed 1%.  

Sodium lauryl sulfate and ammonium lauryl sulfate may be used in cosmetics and personal care products marketed in Europe according to the general provisions of the Cosmetics Regulation of the European Union.

Learn more about Sodium lauryl sulfate and ammonium lauryl sulfate

https://brainly.com/question/12149356

#SPJ2

Help me please I really need this tomorrow

Answers

Answer:

answers:

1.b

2.d

3.b

4. c

5.c

6.d

7.c

Explanation:

I think this is the correct answer pls mark brainliest and like..

19. place moth balls in the closet and observe after several days.

20. whenever wax or a candle burns it turns from solid to liquid but again at room temperature it turns to solid

21. evaporation, condensation, precipitation

22. it produces new substances

23. vinegar Bubbles when baking soda is added.

24. steam

Which of the following pairs lists a substance that can neutralize Ca(OH)2 and the salt that would be produced from the reaction?

HCl and CaCl2

HClO and CaHClO

H2O and Ca(OH)3

H3PO4 and Ca(PO3)2

Answers

Answer:

Which of the following pairs lists a substance that can neutralize Ca(OH)2 and the salt that would be produced from the reaction?

HCl and CaCl2

HClO and CaHClO

H2O and Ca(OH)3

H3PO4 and Ca(PO3)2

Explanation:

The given substance is Ca(OH)2 which is a base.

To neutralise a base an acid is required.

Among the given options,

HCl and H3PO4 are the acids.

The salts foremd when calcium hydroxide reacts with the respective acids are CaCl2 and Ca3(PO4)2.

But among the given options, only the forst option that is

HCl and CaCl2 shows the correct formulas.

Hence, the answer is first option.

Answer:

HCl and CaCl2

Explanation:

As electrons are passed down the electron transport chain, the molecules are first ______ as they pick up electrons, and then ______ as they release the electrons.

Answers

Answer:

reduced; oxidized

Explanation:

An electron transport chain can be defined as a series of redox reactions (electron transporters or proton complexes) that are saddled with the responsibility of transferring electrons from electron donors to electron acceptors through a membrane in order to produce a protein gradient that creates energy or adenosine triphosphate (ATP).

Generally, as these electrons are transferred through the electron transport chain, the molecules are first reduced as they pick up electrons, and then oxidized as they release the electrons.

Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.

Additionally, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.

Describe what is happening within the system when it is at equilibrium in terms of concentrations, reactions that occur, and reaction rates.

Answers

Answer:

Describe what is happening within the system when it is at equilibrium in terms of concentrations, reactions that occur, and reaction rates.

Explanation:

The chemical equilibrium state is the state where the rate of forward reaction becomes equal to the rate of backward reaction.

At this stage the change in concentration of reactants becomes equal to the change in concentration of products.

The reaction will never cease.

That is the reason chemical equilibrium is called dynamic equilibrium.

So, forward and backward reactions will be taking place continuously at equal rates.

C20H16+
_Cl2 →
C+
HCl
Please help me fast

Answers

Answer:

1 C10H16 + 8 Cl2 --> 10 C + 16 HCl

ASAP PLEASE HELP What is the wavelength of a photon with a frequency of 6.56 x 1014 Hz?
A. 197 nm
B. 457 nm
O C. 303 nm
D. 435 nm

Answers

Answer:

B. 47 nm is the wavelength of a photon with a frequency of 6.56 x 1014 Hz.

Answer:

B. 457 NM ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

                                                                                                                                         

ASAP :))
How would a reaction that occurs without the addition of energy be
described?
A. At equilibrium
B. Spontaneous
C. Nonspontaneous
D. Not at equilibrium

Answers

Answer:

B

Explanation:

Exergonic reactions are also called spontaneous reactions, because they can occur without the addition of energy. ... In this case, the products, or final state, have more free energy than the reactants, or initial state. Endergonic reactions are non-spontaneous, meaning that energy must be added before they can proceed.

Exergonic reactions were often known as spontaneous reaction. since they can take place without the expenditure of energy.

What is exergonic reactions?

A reaction wherein energy is emitted mostly in presence of light or heat was known as just an exothermic reaction.

What is spontaneous reaction?

A spontaneous process would be one that happens without the system receiving any outside input.

Because exergonic events could proceed without the supply of energy, they are sometimes known as spontaneous reactions. The products possess greater free energy as compared to  the reactants example. Endergonic reactions were non-spontaneous, which means they require the addition of energy before they can begin.

To know more about spontaneous reactions and exergonic reactions

https://brainly.com/question/13790391

#SPJ2

A new drug has been released to the public and is popular among
consumers. It is effective in relieving high blood pressure. However, it has
altered some patients' personalities. Which stage of the engineering process
may address this negative side effect?
A. Screening
B. Testing
C. Looking for improvements
D. Evaluating test results

Answers

Answer:

c. Looking for improvements

Explanation:

I took the quiz and it was right

Answer: C

Explanation:

just took the test

Help me with this question


Prove that:-
1.The unit of pressure is a derived unit?
2.The unit of work is a derived?​

Answers

Answer:01

When you describe nature, and you need standard, useful units for everything you will see that these units are linked. So you start with defining base units that are simple:

kg, meter, second, Kelvin, …

Now other units will be automatically derived:

speed = distancetime , so the unit is  ms  

acceleration =  speedincreasetime , so the unit is  ms2  

Force = Mass x acceleration, so the unit is  kg.ms2  

Pressure is Force/surface, so the unit is  kgm.s2  

You can define new simple units for this, but they are still derived from the base units:

Force:  1N=1kg.ms2  

Pressure:  1Pa=1kgm.s2

2 Answer

In mechanics, work is defined as “force x distance”. Since energy can be measured as work, we can write energy = force x distance. Thus SI derived unit of energy has the units of newtons x meter or kg m2/s

Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, electrical, thermal (heat), and/or sound.

Answers

Answer:

Nuclear energy gets converted into heat energy during a detonation and is also used in nuclear power plants where the heat energy form the nuclear energy gets converted into mechanical energy by converting water into steam, rotating the turbines and converting that into electrical energy

Explanation:

Or heat engines, such as the internal combustion engine used in cars, or the steam engine. (Heat - Mechanical energy)

Why does it stop expanding when you stop blowing air into it

Answers

Answer:

this is because of collisions of molecules present in that particular system.

Explanation:

For instance, when air is filled in a balloon then the number of the molecules of air inside the balloon increases. As a result more collisions of molecules take place with the walls. This gives rise to high air pressure on the walls which causes the balloon to expand and get inflated.

Which is a feature of a single replacement reaction?

Answers

Answer:

A typical characteristic of a single-replacement reaction is that there is one element as a reactant and another element as a product. will not because bromine is below fluorine on the periodic table. This is just one of many ways the periodic table helps us understand chemistry.

Explanation:

hope it will help u......

please help me .........
solve it.​

Answers

this is the the and*******to you and your team

Consider the balanced chemical equation . How many moles of H 2O are produced when 1.0 mole of C 2H 6 reacts with excess O 2

Answers

Answer:

3.0 mol H₂O

Explanation:

Step 1: Write the balanced combustion equation

C₂H₆ + 3.5 O₂ ⇒ 2 CO₂ + 3 H₂O

Step 2: Establish the appropriate molar ratio

The molar ratio of C₂H₆ to H₂O is 1:3.

Step 3: Calculate the moles of H₂O formed from 1.0 mole of C₂H₆

1.0 mol C₂H₆ × 3 mol H₂O/1 mol C₂H₆ = 3.0 mol H₂O

The body part of a spirogyra is.............​

Answers

Answer:

The chloroplasts form a spiral around the vacuole and have specialized bodies known as pyrenoids that store starch. The cell wall consists of an inner layer of cellulose and an outer layer of pectin, which is responsible for the slippery texture of the algae.

Explanation:

The body part of a spirogyra is called pyrenoids .

hope it is helpful to you

Which of the following belongs to VIIA?
a) Na
b) Mg
c) Cl
d) Xe
the right answer and please Quick

Answers

Answer: The answer is CL also known as chlorine

C₂H₄O₂ + O₂ ➞ CO₂ + H₂O

Answers

Answer:

C2H4O2 + 2O2 ==> 2CO2 + 2H2O

Explanation:

Start with the carbons

C2H4O2 + O2 ==> 2CO2 + H2O There are 2 on the left, so you need 2 on the right.

Next deal with the hydrogens. You have 4 on the left so you have to make 4 on the right

C2H4O2 + O2 ==> 2CO2 + 2H2O

The oxygens are the real devil in this question. Be careful how you handle them. There are 2 * 2 = 4 from the CO2 and 2*1 = 2 from the water. The total is 6

Now you can't just put a 3 in front of the O2. There are 2 in the given chemical. So you don't need 6. You need 6 -2 = 4. But the oxygen is O2. You have to divide the 4 by 2 to get 2

C2H4O2 + 2O2 ==> 2CO2 + 2H2O  

And that's your answer.

True or false: Denaturation of an enzyme increases the rate at which it may catalyze a chemical reaction.

Answers

The answer is False. Hope this helps.

The biosphere is made of different kinds of matter. Which substance is an
example of inorganic matter?
O A. Iron
B. Fat
C. Glucose
D. Protein

Answers

A (iron) is inorganic
A. iron is an example of inorganic matter

Amino acids that must be obtained through the diet are called O A) cholesterol. OB) non-essential amino acids. o C) essential amino acids. The OD) peptides.​

Answers

Answer:

I belive C: essential amino acids

Explanation:

They can t be made from the body so they must be obtained my food

aseous methane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 5.5 g of methane is mixed with 13.9 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Round your answer to significant digits.

Answers

Answer:

There is 9.6 grams of CO2 produced

Explanation:

Step 1: Data given

Mass of methane = 5.50 grams

Molar mass of methane = 16.04 g/mol

Mass of oxygen = 13.9 grams

Molar mass of oxygen = 32.0 g/mol

Step 2: The reaction

CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)

Step 3: Calculate number of moles

Moles = mass / molar mass

Moles methane = 5.50 grams / 16.04 g/mol

Moles methane = 0.343 moles

Moles oxygen = 13.9 grams / 32.0 g/mol

Moles oxygen = 0.434 moles

For 1 mol CH4 we need 2 moles O2 to produce 1 mol CO2 and 2 moles H2O

O2 is the limiting reactant. It will completely react (0.434 moles).

There will react 0.434/2 = 0.217 moles CH4

There will remain 0.343-0.217 = 0.126 moles CH4

There will be produced 0.434 moles of H2O and

0.434/2 =0.217 moles of CO2

Step 4: Calculate mass of products

Mass = moles * molar mass

Mass CO2 = 0.217 moles ¨44.01 g/mol

Mass CO2 = 9.6 grams

Mass H2O = 0.434 moles * 18.02

Mass H2O = 7.8 grams

Determine the enthalpy for the reaction A+B --> C If we know the following:
A+E --> C+D; delta H = -200 kJ
D+B --> E; delta H = -100 kJ

Answers

Explanation:

here is the answer to the question

Other Questions
Florida is located in the ___________ . southern topics northern topics northern temperate zone southern temperate zone Changes in the products for which a nation has a comparative advantage create sectoral shocks leading to an increase in frictional unemployment. a. True b. False when is canada day celebrating Nabax has an investment that is worth $41,600 and has an expected return of 14.56 percent. The investment is expected to pay her $27,200 in 2 years from today and X in 5 years from today. What is X? What is the Law of Octaves?A. The rule used to compose a poem of eight linesB. Law describing the special properties of elements within eight electrons in the outer shell.C. Each note has a series of eight sub notes increasing in variation between it and the next notes.D.When ordered by atomic mass every eight elements has similar properties Question 5 (Multiple Choice Worth 4 points)(02.07)Two similar triangles are shown below:562.594Which two sets of angles are corresponding angles?O O zp and Zs; zq and erO zp and Zt; 29 and usO zp and Zt; 29 and 2 The conductivity of intrinsic semiconductors, such as silicon and germanium, can be increased when small amounts of group 3A or group 5A elements are added by a process called doping.a. Trueb. False A recent national study about the effectiveness of Echinacea in cold treatments for adults was performed by a medical school in Kansas City. The results stated that 22.5% of the randomly chosen 250 adult subjects in the placebo group in the study noted that their treatment appeared to shorten the length of their colds. In an attempt to determine the average high school GPA of all students enrolled at a Regents University in Kansas, a researcher first randomly selects one of the six Regents Universities, then selects a random sample of 50 students from that University from which to gather data. The descriptive statistic of interest in this study is If all 15 presynaptic neurons stimulate the post-synaptic neuron at the same time, will an action potential be produced? h(x) = -4x 7, when x = 3: In the file BankAccount.java, build a class called BankAccount that manages checking and savings accounts. The class has three private member fields: a customer name (String), the customer's savings account balance (double), and the customer's checking account balance (double).Implement the following Constructor and instance methods as listed below:public BankAccount(String newName, double amt1, double amt2) - set the customer name to parameter newName, set the checking account balance to parameter amt1 and set the savings account balance to parameter amt2. (amt stands for amount)public void setName(String newName) - set the customer namepublic String getName() - return the customer namepublic void setChecking(double amt) - set the checking account balance to parameter amtpublic double getChecking() - return the checking account balancepublic void setSavings(double amt) - set the savings account balance to parameter amtpublic double getSavings() - return the savings account balancepublic void depositChecking(double amt) - add parameter amt to the checking account balance (only if positive)public void depositSavings(double amt) - add parameter amt to the savings account balance (only if positive)public void withdrawChecking(double amt) - subtract parameter amt from the checking account balance (only if positive)public void withdrawSavings(double amt) - subtract parameter amt from the savings account balance (only if positive)public void transferToSavings(double amt) - subtract parameter amt from the checking account balance and add to the savings account balance (only if positive) The length of a rectangle is twice its width the perimiter is 60 ft find its area Solve using suitable arrangement and properties. a) 4171002b) 457325c) 8312+284+788+716d) 12544+56125 from chapter 5 of Animal Farm. Which figure from Russian history does Napoleon most likely represent? ealer explained privately to the other leon had never in reality been opposed in the contrary, it was he who had beginning, and the plan which vn on the floor of the incubator shed stolen from among Napoleon's nill was, in fact, Napoleon's own n, asked somebody, had he spoken so 2 Here Squealer looked very sly. That, rade Napoleon's cunning. He had e the windmill, simply as a maneuver Dall, who was a dangerous character e. Now that Snowball was out of the d go forward without his interference. er, was something called tactics. He er of times, "Tactics, comrades, Cound and whiskina his tail with a O Lenin, who led the rebellion against the tsar in the name of communism O Marx, who outlined a new social philosophy in the Communist Manifesto O Stalin, who built a dictatorship under the guise of communism O Trotsky, who was ultimately banished from the Communist Party What is the purpose behind a saying like "Black is beautiful"?O A. To discourage diversityO B. To combat internalized racismC. To suggest feelings of defensivenessD. To promote feelings of racial superiority Choose the appropriate word or phrase from the drop down menu to complete the sentences: The mean of the quantitative variable of interest in the population is called the [ Select ] . The mean of the quantitative variable of interest in the sample is called the [ Select ] . The standard deviation of the quantitative variable of interest in the population is called the [ Select ] . The standard deviation of the quantitative variable of interest in the sample is called the [ Select ] . 3. Which choice below correctly identifies the weight of a fetus at each trimester of pregnancy?A. first trimester: 1 oz; second trimester: 1 lb; third trimester: 6.5-10 lbsB. first trimester: 1 oz; second trimester: 3 lbs; third trimester: 6.5-10 lbsC. first trimester: 1 g; second trimester: 1 oz; third trimester: 6.5-10 lbsD. first trimester: 1 lb; second trimester: 2 lbs; third trimester: 6.5-10 lbs Is 237405 divisible by 11 We the People of the United States, in order to form amore perfect Union, establish Justice, insure domesticTranquility, provide for the common defence, promote thegeneral Welfare, and secure the Blessings of Liberty toourselves and our Posterity, do ordain and establish thisConstitution for the United States of America. 1Which idea is expressed in this excerpt from the Constitution?A. The government's power should be limited to protect individualrights.B. The government is divided into three branches,G. State governments should have as much power as the federalgovernment.OD. The government is responsible for protecting citizens.My explain what characterises a sound as noise or music