What types of chemical changes occur in fireworks displays?

Answers

Answer 1
The amazing colors in exploding fireworks come from chemical reactions triggered by heat. Combustion propels fireworks into the air while oxidization provides the oxygen needed to excite the metal compounds in fireworks. Energy absorption and emission produce fireworks' unique color spectra.
Answer 2

Two simple reactions that occur in fireworks are combustion and oxidation.

Chemical ChangeChemical changes occur when one component joins with another to generate a new compound, which is known as chemical synthesis, or when two or more separate substances mix to form a new substance, which is known as chemical decomposition.Two simple reactions that occur in fireworks are combustion and oxidation.A fireworks explosion is an exothermic redox reaction. The fuel swiftly oxidizes (burns), resulting in a large buildup of pressure, which finally results to solids and gases bursting over the sky in vivid patterns.

Find out more information about chemical change here:

https://brainly.com/question/1161517?referrer=searchResults

What Types Of Chemical Changes Occur In Fireworks Displays?

Related Questions

what are 3 examples of social class in canada now

Answers

Answer:

Marxists identify 3 main classes: the petite bourgeoisie, who own businesses (the means of production), work for themselves, and do not employ others; the proletariat or working class, who do not own the means of production and who sell their labor power for wages; and the bourgeoisie or capitalist class

Explanation:

Gallup has, for a number of years, asked Americans to place themselves -- without any guidance -- into five social classes: upper, upper-middle, middle, working and lower. These five class labels are representative of the general approach used in popular language and by researchers.

Hope This Helps! If Not then My Apologies!

There were many reasons why people volunteered for the Union army during the Civil War. Many joined to fight slavery. What was another popular reason why people volunteered for the Union army?

Answers

Answer:

To bring Southern states back into the Union

Explanation:

What is the Silk Road

Answers

Answer:

The Silk Road was a network of trade routes that connected the West and East, and it was important because it helped promote trade and business among different kingdoms and empires.

how do you think period of harsh winters will affect the rabbit population

Answers

Answer: The rabbit population will decrease

Explanation: In a harsh winter, the food that the rabbits eat will die. This will in turn decrease the population.

Hope this helps

Period of harsh winters will affect the rabbit population. It will cause the rabbit population to decrease.

What do you mean by  population ?

The term "population" refers to all citizens who are either permanently residing in a country or who are just passing through. This indicator reveals how many people typically reside in a certain area.

Growth rates are the population changes that occur each year as a result of births, deaths, and net migration.

The total population also includes national military forces deployed overseas, merchant mariners at sea, diplomatic staff based abroad, civilian foreign nationals residing in the nation, and internally displaced people residing in the nation.

The following are not included, though: foreign military troops stationed there; foreign diplomats working there; and non-citizen aliens who are just passing through. Demographic tools like population predictions are frequently used.

They serve as a foundation for additional data projections, assisting governments in making decisions. This metric is calculated using both the annual growth rate and the number of individuals.

Learn more about population, here

https://brainly.com/question/27991860

#SPJ2

What happened to Jews when the Nuremberg laws were passed in 1935?

Answers

Explanation:

The Nuremberg Laws (German: Nürnberger Gesetze) were antisemitic and racist laws in Nazi Germany. They were enacted by the Reichstag on 15 September 1935, at a special meeting convened during the annual Nuremberg Rally of the Nazi Party (NSDAP). The two laws were the Law for the Protection of German Blood and German Honour, which forbade marriages and extramarital intercourse between Jews and Germans and the employment of German females under 45 in Jewish households, and the Reich Citizenship Law, which declared that only those of German or related blood were eligible to be Reich citizens. The remainder were classed as state subjects without any citizenship rights. A supplementary decree outlining the definition of who was Jewish was passed on 14 November, and the Reich Citizenship Law officially came into force on that date. The laws were expanded on 26 November 1935 to include Romani people and Black people. This supplementary decree defined Romanis as "enemies of the race-based state", the same category as Jews.

Out of foreign policy concerns, prosecutions under the two laws did not commence until after the 1936 Summer Olympics, held in Berlin. After the Nazis seized power in 1933, they began to implement their policies, which included the formation of a Volksgemeinschaft (people's community) based on race. Chancellor and Führer (leader) Adolf Hitler declared a national boycott of Jewish businesses on 1 April 1933, and the Law for the Restoration of the Professional Civil Service, passed on 7 April, excluded non-Aryans from the legal profession and civil service. Books considered un-German, including those by Jewish authors, were destroyed in a nationwide book burning on 10 May. Jewish citizens were harassed and subjected to violent attacks. They were actively suppressed, stripped of their citizenship and civil rights, and eventually completely removed from German society.

The Nuremberg Laws had a crippling economic and social impact on the Jewish community. Persons convicted of violating the marriage laws were imprisoned, and (subsequent to 8 March 1938) upon completing their sentences were re-arrested by the Gestapo and sent to Nazi concentration camps. Non-Jews gradually stopped socialising with Jews or shopping in Jewish-owned stores, many of which closed due to lack of customers. As Jews were no longer permitted to work in the civil service or government-regulated professions such as medicine and education, many middle class business owners and professionals were forced to take menial employment. Emigration was problematic, as Jews were required to remit up to 90% of their wealth as a tax upon leaving the country. By 1938 it was almost impossible for potential Jewish emigrants to find a country willing to take them. Mass deportation schemes such as the Madagascar Plan proved to be impossible for the Nazis to carry out, and starting in mid-1941, the German government started mass exterminations of the Jews of Europe.

State THREE important seasonal activities related to sugar-cane cultivation.

Answers

Answer:

he most favorable soil for the growth of sugarcane is moist clay loam with good drainage or alluvial, light clay soil. Areas where the temperature ranges from 20°C to 26°C, with average rainfall of 150 cm are suitable for its cultivation. A lot of sunshine is required, particularly at the end of the growing season

Explanation:

What does it mean to have a true friend (which I need)

Answers

Answer:

Support, Understanding, trust, respect, love, protection.

Explanation:

To have a true friend they need to be able to understand you and not be judgemental, if you tell them something or do something they need to support you at all costs unless it isn't good for you. You need to be able to trust them with your life and same goes to them, you also need to both respect and love each other, and protect each other at all costs. They need to be someone you can be at your worst with. They need to be your shoulder to cry on.

Your welcome,

Maliyah

list five rights protected by the constitution

Answers

Answer:

1. General

2.Criminal trials

3.Civil trials

4. Appeals

5. Nonauthority

Right to counsel , right to a speedy and public trial , right to bear arms , freedom of speech, commerce clause

Why did many Northerners oppose the expansion of slavery into the west?

Answers

Answer:

While the South utilized slavery to sustain its culture and grow cotton on plantations, the North prospered during the Industrial Revolution. Northern cities, the center of industry in the United States, became major metropolises due to an influx of immigrants. With this willing and cheap workforce, the North did not require a slave system. Although some northerners found the institution of slavery morally reprehensible, most did not believe in complete racial equality either.  Slavery became even more divisive when it threatened to expand westward because non-slave holding white settlers did not want to compete with slaveholders in the new territories.

Explanation:

The northern determination to keep slavery in the South and keep it from spreading into western territories was part of the effort to keep civil rights and free labor in the country's future.

Why did the North fight against slavery?

According to one group of historians, most white Northerners sought to restore the Union rather than transform it. Meanwhile, other historians contend that white Northerners generally sought to expand freedom by establishing a new nation free of slavery.

Although some northerners considered slavery to be morally repugnant, most did not believe in complete racial equality. Slavery became even more controversial when it threatened to spread westward due to non-slaveholding white settlers' unwillingness to compete with slaveholders in the new territories.

Learn more about Northerners Slavery here:

https://brainly.com/question/15597604

#SPJ5

What was the result of the Supreme Court decision in Plessy v. Ferguson?

Answers

Answer:

Plessy v. Ferguson was a landmark 1896 U.S. Supreme Court decision that upheld the constitutionality of racial segregation under the “separate but equal”

Explanation:

Ria is an Indian student who was admitted to a US university. Her annual tuition is $42,000. She has to pay her tuition fees in US dollars. She needs to calculate how many Indian rupees she will need to buy one dollar. The dollar to rupee exchange rate is 63.76 and rupee to dollar exchange rate is 0.015. How many Indian rupees will Ria need to buy one dollar?
A.
50.00 rupees
B.
56.00 rupees
C.
63.76 rupees
D.
76.63 rupees

Answers

The correct answer is C. 63.76 rupees

Explanation:

In the economy, the exchange rate is the one that defines the equivalence between two currencies of different countries or economical zones. This means by using the exchange rate you can determine how many rupees you need to buy one dollar and vice versa. According to this, if the dollar to rupee exchange is 63.76 this means 1 dollar = 63.76 rupees, and therefore you will need 63.76 rupees to get one dollar. On the other hand, if you have 1 rupee this is equivalent to 0.015 dollars as this is the exchange rate rupee to dollars. Thus, to buy one dollar Ria will need to have 63.76 rupees because this is the exchange rate for the two currencies.

WRITE ANY THREE CHARACTERISTICS OF RABI, KHARIF AND ZAID CROPS ?.

Answers

Answer:

kharif is a type raniy crop mostly done from june - October . rice ,bazara.

rabi is a type of winter croo mostly done from oct - march ,wheat ,mustard.

zaid is a crop which grown between april to june like cucumber ,muskmelon ,watermelon .

Explanation:

hope this helps you

anyone can help me with this one?

Answers

Answer:

it keep reseting the answer can yall stop that

Explanation:

who is thich nhat hanh​

Answers

Answer:

1. of relatively great extent from one surface to the other; fat, broad, or deep: a thick slice of bread.

Explanation:

i looked up the def of thich soooooo thats what i got for yeaaaa boiii

Answer:

Thich Nhat Hanh is a world renowned Zen master, writer, poet, scholar, and peacemaker. ... He is the author of more than one hundred books including bestsellers Peace Is Every Step, The Miracle of Mindfulness, Living Buddha, Living Christ and Anger. Born in 1926 he was ordained at the age of 16.

Explanation:

Thich Nhat Hanh is a world renowned Zen master, writer, poet, scholar, and peacemaker. ... He is the author of more than one hundred books including bestsellers Peace Is Every Step, The Miracle of Mindfulness, Living Buddha, Living Christ and Anger. Born in 1926 he was ordained at the age of 16.

What was part of the agreement between the Union and Confederacy once the war ended?

A. The Confederacy was allowed to remain as its own nation

B. Confederate soldiers had to give up their guns and all fighting supplies to the Union

C. Southern states could keep their slaves if they promised never to rebel against the U. S. again

Answers

B. Confederate soldiers had to give up their guns and fighting supplies to the Union.

Characteristics of the great barrier reef

Answers

Answer:

Some key facts about the Great Barrier Reef Marine Park:

covers 344,400 km2 in area.

includes the world's largest coral reef ecosystem.

includes some 3000 coral reefs, 600 continental islands, 300 coral cays and about 150 inshore mangrove islands.

Explanation:

Answer:

hey! hope these help love!

1) covers 344,400 km2 in area.

2)includes the world's largest coral reef ecosystem.

3)includes some 3000 coral reefs, 600 continental islands, 300 coral cays and about 150 inshore mangrove islands.

How did humans go from the middle to the top of the food chain?

Answers

Answer:

once humans started gathering big communities, animals weren’t preyed on by larger predators.

Explanation:

humans are incredibly resilient, A human is not only far more difficult to kill than it at first appears, it’s also impossible to escape from. Once people started gathering in big enough communities, large predators were no longer able to easily count people in the animals they frequently preyed on.

The Roman Assembly was made up of 300 members from what social class?

Answers

Answer:

The assemblies were mainly made up of plebeians.

Explanation:

Hope This Helps!

1) Who ordered the partition of India?
2)Describe the problem that the partition caused.

Answers

Answer:

1)Lord Mountbatten

2)The partition was caused in part by the two-nation theory presented by Choudhary Rehmat Ali, due to presented religious issues. Pakistan became a Muslim country, and India remained a secular country. ... They were presumably Muslims who had entered Pakistan from India.

Explanation:

happy to help ya:)

How did geographic features impact early societies?

Answers

Answer

It lead to natural resources like lron ore copper even gold

Affected places where civllaztions developed.

What will you do when you discover a violation of the law on religious beliefs?

Answers

Answer:

Explanation:

Depends on what the law is and what the violation is. If it is a disagreement on principle, I would do nothing. People are entitled to differing opinions.

If it is the burning of a church, that is an entirely different matter. Property destruction is never legal no matter what the destruction is about. Because you hate minority groups does not give you any right to destroy what is theirs if they have paid for it.

How did the Destroyers for Bases agreement President Roosevelt signed help Britain and its allies?
1. The agreement put US bases on Soviet territory.
2. The agreement put US bases on British territory.
3.The agreement put US destroyers in Soviet waters.
4. The agreement put US destroyers in German waters.

Answers

Answer:

The agreement put US bases on British Territory

Explanation:

It was an agreement between the United States and United Kingdom :)

Answer:

B: The agreement put US bases on British territory.

Explanation:

edg2021

hear are the first for terms of another sequence
6 11 16 21
wright the expression for the nth term of this sequence

Answers

Answer: 5n+1

Do you need the working out?

Why does Watts think what happened to Rome could help countries now?

Answers

Watts says he believes that the autocracy that occurred and dominated Rome, can occur today.

He claims that this autocracy was due to growing social inequality and the inability of the Rome government to remedy the problems arising from it. This resulted in a strong wave of violence that completely left the control of the government and made people start to believe that all this disorder was created because of all the freedoms that democracy allows.

Watts says that for years we can see these same problems occurring in the US and other parts of the world, which justifies the support of many citizens for authoritarian and abusive governments, just like what happened in Rome

what events led to the fall of the roman empire

Answers

Answer:

Invasions by Barbarian tribes. ...

Economic troubles and overreliance on slave labor. ...

The rise of the Eastern Empire. ...

Overexpansion and military overspending. ...

Government corruption and political instability. ...

The arrival of the Huns and the migration of the Barbarian tribes. ...

Christianity and the loss of traditional values

Explanation:

Why do we need society​

Answers


Society is important because it provides us with a system and a platform to work together for the betterment of the world. With the collective efforts of the society, we are able to improve our living and social conditions

First of all What is soccietey:

"A society is a group of peolpe involved in persistent social comiunactions , or a large social group sharing the same spatial or social area, typically subject to the same political authority and dominant cultural expectations. " Acording to Wikipedia

So know you know what socsitey is so Why do we need society​?

1. Societies create modles of behavior by allowing some activtes or communication as okay  or not okay. They show us with a floor  to take and develop  social positions.they also are an  important guide for a grreat life ..

Therfore, Societys are mportant because they give  us with a system and a polices to work unitedly for the better.

"it was created by our ancestors and is been revising since its inception by us according to our different needs, comfort and behavior.Why this happens because, we evolve, from our survival instinct to socio-productive skills.  It is the later skill which separates us from animals up to an extent because in nature there is only one truth- survive or die. The line between society and nature is very subtle. Without nature there is no society, hence they are byproduct of nature. ..The prominent belief behind creating it is to make a shift from our animalistic behavior to something better because we are endowed with imagination, we can think of something better and create it."

"Without society the human beingwould cease to exist. Society is important because it is NATURAL to us humans and in fact MANY other animals as well. From birth, we areplaced into group settings and situations with particular common denominators: family, schools, government and political systems, etc"

Hope this helps

Education is the first and foremost condition of development. Do you agree or disagree?Give as many reasons as you can in support of your answer.

Answers

Answer:

Education is the result of the educational process that implies preparation to transform a reality from the knowledge, skills, values ​​and abilities that are acquired at each stage and throughout life. Development is achieved through the education of critical and creative people who generate new knowledge and respond from a historical-cultural perspective to present and future problems, transforming and enriching society.

Explanation:

The progress of humanity largely depends on education. Educating is a process and as such implies the idea of ​​advancement and  progress. The education of individuals implies the end achieved, that is, we speak of social action (educating) on ​​individuals (social beings), enabling them (capacity development) to understand their reality and transform it in a conscious, balanced and efficient way so that they can act as socially responsible people. Education therefore implies the idea of ​​optimization; that is to say, whoever tries to educate others (heteroeducation) or who tries to educate herself/himself (self-education) assumes the idea of the improvement of the social individual, therefore this constitutes a function of society.

in order for the constitution to be amended, what must happen?

Answers

Answer:

The framers realized that the Constitution they were writing would not be capable of solving every circumstance that could arise in the future and therefore they left scope for amending the Constitution.

Explanation:

The purpose of constitutional amendments is to strengthen, modify, or otherwise update the original text.

The amendment to the Constitution may be requested by any member of the House of Representatives or the Senate and shall be adopted in the form of a joint resolution within the regular legislative procedure. However, it should be passed in both houses with the two-third majority. Secondly, a  national convention, called for by Congress for that purpose of amending the constitution, on the demand of two-thirds of the state legislatures.

Answer:

Three-fifths of the states must vote to accept the amendment.

Explanation:

I did the test on ap3x

reasons for applying fertilizers before planting?

Answers

Advantages: Enhance crop development – Pre-Plant fertilizer application can ensure that nutrients are available to the crop when it needs them, from the very beginning. Incorporate nutrients into the soil – Potassium and phosphorus are major nutrients that are not readily mobile in the soil.

Who made the famous speech The Atlanta Compromise in 1895? A. Jane Addams B. W. E. B. DuBois C. Booker T. Washington D. Robert E. Park

Answers

C. Booker T. Washington

Answer:

its c

Explanation:

Other Questions
I NEED ANSWERS FAST I WILL GIVE BRAINLIEST, FOR THE TUV one Using the following image, solve for xAnd for the other one find UW Write rough draft informative essay on a Greek mythical character. Your essay will use research to summarize the plot of the myth and explain the mythical characters cultural significance. What is Walters solution for the familys predicament? Why does his family object to it? what is the solution to -122 < -3(-2-8x) -8x Which two answers identify the two middle core processes, i.e. core process 3 and 4? (choose two) a. Build and test the system b. Plan and monitor the project c. Understand the details of the problem d. Design the components simlipal bio reserve is located at a. west Bengalb.kerelac.tamilnadu d.andhra Pradesh Help im still lazy lol Paragraph: sea captains looked at the night sky as they sailed on the ocean they needed to know which way was north. There is one star that is always true north. Its called the North Star. It guided sailors in the way. Whats the main idea ?Detail 1 Detail 2 What would be a good title for writing a blog post on wildfires Which problem would quickly occur in a plant when the xylem is not functioning properly?A. The plant would wilt.B. The plant would turn yellow.C. The plant would stay very small.D. The plant would not produce seeds. Does anyone get this? What is the dominant form of sound repetition in this line from "The Fish"?but shallower, and yellowedSelect the best answer from the choices provided.A. alliterationB. assonanceC. consonanceD. rhyme how does this excerpt from of plymouth show the influence of religion in early american literature ? 10. A cliff on the seashore is eroding at the rate of 17 centimeters per year. Write and solve an equation to find the number ofyears in which the cliff will erode 85 centimeters. Rain and Hantavirus in Mice Hantavirus is carried by wild rodents and causes severe lung disease in humans. A recent study1 on the California Channel Islands found that increased prevalence of the virus was linked with greater precipitation. The study adds "Precipitation accounted for of the variation in prevalence." How did the Inca and Aztec civilizations differ during the postclassical era?A. The Inca created a politically unified empire, while the Aztecsgranted more independence to conquered territories.B. The Inca built temples to honor their gods and leaders, while theAztecs felt that such projects were wasteful.C. The Inca were able to successfully resist invasions by Europeanpowers, while the Aztecs fell quickly to Europeans.D. The Inca predominantly wrote and spoke the Toltec language,while the Aztecs did not develop a written language. In the following sentence, what is the meaning of the word buoyed?Theaudience's cheers buoyed her spirits so much she wanted to burst with joy.swallowedlifted updepressedwashed over I need helpA.4B.1/4C.-4D.-1/4 A student in the front of a school bus tosses a ball to another student in the back of the bus while the bus is moving forward at constant velocity. The speed of the ball as seen by a stationary observer in the street:_________a. is less than that observed inside the bus. b. is the same as that observed inside the bus c. may be either greater or smaller than that observed inside the bus. d. may be either greater, smaller, or equal to that observed inside the bus.e. is greator than that observed inside the bus In the lab on Trophic Interactions you were looking at behavior of mosquito larvae. The question being asked was: Does prey behavior change in the presence of a predator? What would be an appropriate null hypothesis for this experiment? Recall in Treatments 2 and 3, a predator was added to the mosquito tanks.