When hydrogen reacts with calcium metal what are the oxidation number.

Answers

Answer 1

Answer:

the oxidation number is +2


Related Questions

Based on the description that follows how many potential.

Answers

The number of potential insider threat indicators is; 0 potential insider threat indicators

The given description is missing and it is;

How many potential insider threat indicators does a person who is married with two children, vacations at the beach every year, is pleasant to work with, but sometimes has poor work quality display?

Insider threat indicators are individuals that posses authorized access to certain encrypted government documents/resources and makes use of those government properties to cause harm to the security of a place or state or country.

Now, in our question the married man goes on vacations with his family and as such there is no insider threat indicator because there is no outsider and though the person has poor work quality display, he will not harm his family.

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Newton’s law of cooling states that for a cooling substance with initial temperature t0, the temperature t(t) after t minutes can be modeled by the equation t(t)=ts+(t0−ts)e−kt, where ts is the surrounding temperature and k is the substance’s cooling rate. A liquid substance is heated to 80°c. Upon being removed from the heat, it cools to 60°c in 15 min. What is the substance’s cooling rate when the surrounding air temperature is 50°c? round the answer to four decimal places. 0. 0687 0. 0732 0. 0813 0. 872.

Answers

The cooling rate of the substance is approximately 0.0732.

According to the statement, the Newton's law of cooling is defined by the following formula:

[tex]T(t) = T_{s} + (T_{o}-T_{s})\cdot e^{-k\cdot t}[/tex] (1)

Where:

[tex]T_{s}[/tex] - Final temperature, in degrees Celsius.[tex]T_{o}[/tex] - Initial temperature, in degrees Celsius.[tex]t[/tex] - Time, in minutes.[tex]k[/tex] - Cooling rate, in [tex]\frac{1}{min}[/tex].[tex]T(t)[/tex] - Current temperature, in degrees Celsius.

Please notice that substance reaches thermal equilibrium when [tex]T(t) = T_{s}[/tex], that is when temperature of the substance is equal to the temperature of surrounding air.

If we know that [tex]T_{o} = 80\,^{\circ}C[/tex], [tex]t = 15\,min[/tex], [tex]T_{s} = 50\,^{\circ}C[/tex] and [tex]T(15) = 60\,^{\circ}C[/tex], then the cooling rate of the substance is:

[tex]60 = 50 + (80 - 50)\cdot e^{-15\cdot k}[/tex]

[tex]\frac{60-50}{80-50}= e^{-15\cdot k}[/tex]

[tex]\frac{1}{3} = e^{-15\cdot k}[/tex]

[tex]k = -\frac{1}{15}\cdot \ln \frac{1}{3}[/tex]

[tex]k \approx 0.0732[/tex]

The cooling rate of the substance is approximately 0.0732.

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Answer:

B:    0.0732

Explanation:

I took the test :)

Cacharrerosdelaweb. Com at the time of initial recognition, an item of property, plant and equipment will be measured by its cost.

Answers

At the time of initial recognition, a property, plant and equipment asset will be measured based on its cost: True.

Tangible assets such as property, plant and equipment are assets that are owned by a business firm and are used for the production or supply of its products and services.

In Business management, an asset would only be included in property, plant, and equipment, if it has the following features;

It is expected or required to be held for use but not for sale.It is owned by the business firm.It must be tangible and permanent in nature.It must have an expected life of a normal operating cycle that is typically above a year.

At the time of initial recognition, a property, plant and equipment asset will be measured based on its cost, which is typically the cash-equivalent price or financial value on the recognition date according to generally accepted accounting principles (GAAP).

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All of the following are functions of the nervous system except.

Answers

Answer:

brain is NOT a part of the peripheral nervous system. The brain, brain stem and spinal cord are all components of the central nervous system.

Which of the following statements is(are) correct when discussing homeostasis?.

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Homeostasis is the physiological process by which the temperature and other functions are regulated. The internal conditions, sensor, effector, and control center of the feedback system are all related to homeostasis.

What is homeostasis?

Homeostasis is the internal autoregulation of the internal environment of the body that provides stability to an organism. To maintain homeostasis the internal body conditions are regulated continuously.

The sensor, effector, and control center are the component of the feedback system that monitors, changes, and compares the physiological value of the bodily functions.

Therefore, homeostasis maintains the internal conditions of the body.

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Which word from the haiku supports gabriel’s analysis? april’s willow-leaves butterfly balances.

Answers

Answer:

Hey mate!

Explanation:

A motif is dominant idea. A kigo is a word that is tied to a season. In this haiku, the kigo is April which is specifically tied to Spring. April is also the motif because the dominant idea of the haiku is April.

pls mark me as brainliest!!

Answer:

The answer is simply A

Explanation:

because its correct on EDGE2022

Which scenario best describes a person who is likely to be vulnerable to trafficking because of drug or alcohol dependence?.

Answers

A person who in debt and needs to pay the debt off as soon as possible.

A survey participant is randomly selected. Let f be the event that the participant’s first motor vehicle had four cylinders and let u be the event that the participant’s first motor vehicle was an suv. What is the value of p(fc and u)?.

Answers

The value of P(fc and u) is 0.09

From the complete question, we have the following highlights:

A total of 200 participants were surveyed.18 of the survey participant's first motor vehicle had four cylinders and the participant’s first motor vehicle was an SUV.

These mean that;

[tex]n(fc\ and\ u) = 18[/tex]

[tex]n =200[/tex]

So, the value of P(fc and u) is calculated using:

[tex]P(fc\ and\ u) =\frac{n(fc\ and\ u)}{n}[/tex]

This gives

[tex]P(fc\ and\ u) =\frac{18}{200}[/tex]

Divide 118 by 200

[tex]P(fc\ and\ u) =0.09[/tex]

Hence, the value of P(fc and u) is 0.09

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Events d and e are independent, with p( d ) = 0. 6 and p( d and e ) = 0. 18. Which of the following is true?.

Answers

Answer:

(D) P(D or E) = 0.72

Explanation:

That's the correct answer.

What was the purpose of the judiciary act of 1789 brainly.

Answers

Explanation:

The judiciary Act of 1789 established the federal court system separate from individual state courts .it was one of the first Acts of the first congress

is there something wrong with the friends response to your mother's hospitality brainly

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No, no there is not ‍♀️

The politician's earlier association.

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The politicians earlier associated with the student communist movement faced doubts about his reputation with some in his party who feared his history would hurt his chances of being elected.

What is the explanation of the above statement?

The statement suggests that politicians who had previous involvement with the student communist movement encountered skepticism within their own party.

Some party members expressed concerns that their association with the movement could have a negative impact on their electoral prospects.

This highlights how political history and reputations can influence perceptions and create apprehensions among party members and potentially affect electoral success.

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Full Question:

Although part of your question is missing, you might be referring to this full question:

The politicians earlier associated with the student communist movement———his reputation with some in his party who feared his history would hurt his chances of being elected

Translate: i am hungry. Yo soy hambre. Yo estoy hambre. Yo tengo hambre. Yo es hambre.

Answers

Happy Holidays!

Yo tengo hambre.

Yo = I

Tengo = have (I form)

Hambre = hunger

Even though this literally translates to "I have hunger", this expression is used to say the equivalent "I am hungry".

The correct translation of "I am hungry" in Spanish is: "Yo tengo hambre."

Thus, option (c) is correct.

"Yo soy hambre" is not the correct translation.

In Spanish, "soy" means "am" and "hambre" means "hungry," but they are not used together in this context to mean "I am hungry."

"Yo estoy hambre" is also not the correct translation.

"Estoy" means "am" and "hambre" means "hungry."

However, in Spanish, the correct way to express hunger is by using the phrase "tener hambre."

"Yo tengo hambre" is the correct translation.

"Tengo" means "I have," and "hambre" means "hunger."

So, "Yo tengo hambre" translates directly to "I have hunger," which is the equivalent of "I am hungry" in English.

The phrase "Yo es hambre" is not grammatically correct in Spanish.

Thus, option (c) is correct.

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Who's your Idol ? or role model ?

Answers

Answer:

nicki minaj

Explanation:

What should a food worker do to prevent a physical hazard.

Answers

Food safety reminder
Remove all naturally occurring physical hazards, such as bones and pits, from food. Maintain equipment to avoid accidental physical hazards.

Answer:

Wash fruits and vegetables carefully, look closely at the foods you prepare, keep the food preparation area free of things that can fall into the food

Explanation:

How long does the earth take to complete its rotation brainly.

Answers

Answer:

since the earth completes on rotation in about 24 hours.

Western civilization includes which of the following countries? peru mexico south africa united states of america india russia brazil canada france china.

Answers

Answer: Peru, Mexico, United states of America, Brazil, and Canada.

Explanation:

They are all on the west

Western civilization includes the following list of countries:

PeruMexicoUnited States of AmericaBrazilCanadaFrance

Western civilization is also referred to as Western culture and it can be defined as a terminology that is used to describe the various cultural heritage of a country in the Western world. Thus, Western civilization is a cultural heritage that comprises the following:

Political systemsArtifactsSocial normsEthical valuesTraditional customsBelief systems Technologies

In this context, countries that are under Western civilization includes the following:

PeruMexicoUnited States of AmericaBrazilCanadaFrance

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According to the age of revolution tab, who were the shakers, and what was one of their influences in this era of music?.

Answers

This answer is in here can you please give me the brainiest question. Look at the picture for the answer

John a team member has completed e0 agile for beginners he wants to contribute to tcs agile vision.

Answers

Based on the information given, the thing that should be done by John will be that he should detail his scrum master.

It should be noted that the scrum master or the team lead is important for the coordination of the team members and also ensures the progress of the team.

In this case, since John is a team member, has completed e0 agile for beginners and he wants to contribute to tcs agile vision, he should inform the scrum master. This is important in knowing the next step to take.

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What was the main purpose of the declaration of independence brainly.

Answers

Answer:

Explaining the colonists' position on the purpose of human government

Explanation:

karen performs a transformation on parallelogram abcd

Answers

Karen can suck on diss co…

All of the following are examples of physical changes except.

Answers

Answer:

Thermal conductivity is not a path function.

What was the advantage of the location of byzantine empire's capital.

Answers

Explanation:

Their new capital was a "bridge" between Europe and Asia

Who's your favorite You_Tuber ?

Answers

Explanation:

mr beast

Answer:

lisa koshy

shes my favorite

omg

Choose the true statement about dressing in layers.

Answers

Dressing in layers means to wear the appropriate clothing for the season such as fall and winter. For example many wear several pieces of clothing on top of one another When the weather is cold you should dress in layers.

In which region would an archaeologist be most likely to find evidence of roman roads?.

Answers

Answer:

saharan africa

Explanation:

. Roman roads are spread to northern Africa.

if the archeologist would go to sub Sahara Africa, he would be more likely to fijd the roads.

he could also go to Israel. the Roman's made a stone paved road and some people while traveling it dropped coins. if he were to look for the coins, he would find the road.

7,528 irrational or rational

Answers

Answer:7528 is not a rational number

Explanation: because we know it is not a perfect square.

The scatter plot shows how the cooking time for a turkey is related to its weight. Which statement is not supported by the trend in the scatter plot?.

Answers

Answer Each additional pound adds about 2 hours of cooking time.

Explanation:

this is the answer

What is the purpose of this sentence within the context of the entire essay?.

Answers

Answer:

What sentence?

Explanation:

There is nothing below the question that I can see.

A food establishment that serves oysters should have what.

Answers

A food establishment that serves oysters should have a proper storage

system and shuckers.

An establishment that serves this sea animal must have shuckers . They help

in the process of removal of shells of the oyster so as to ensure it is properly

processed and edible.

They must also have a proper storage system in order to prevent spoilage,

reduce wastage and increase profit of the food establishment.

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Answer:A variance approved by the local regulatory authority

Explanation:

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