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.

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What Types Of Chemical Changes Occur In Fireworks Displays?

Related Questions

HELPPPPP PLEASE HELLLPPP ME PLEASE

Answers

Hi! This is just a device for planning out your essay. Basically write your thesis, which should sum up your argument in one sentence, and then write out your topic sentences for each paragraph. That’s the way that I was taught. Hope this helps, Ethan.

The original inhabitants of Oceania were sheltered until what event?????

Answers

Pretty sure it’s the lapita colonization but not completely sure.

Children "talking friendships into existence," and adults pursuing the "human career" of communication are scholarly descriptions that emphasize which of the needs that communication satisfies?

Answers

Answer:

social needs

Explanation:

social needs are usually that needs or longing an individual has for love, attention, belonginess, intimacy, friends, trust, family, relationship e.t.c. most times when our social needs are not melt, we feel this emptiness on the inside and despair. but when our social needs for love and belonging is fulfilled, we fill bless, satisfied, fulfilled and a sense of well-being.

Abraham Maslow, a psychologist postulated a concept  called the  hierarchy of needs which consist of the physiological needs, safety and security needs,social needs, esteem need and lastly self-actualizing need in the order of hierarchy in a pyramid. he stated that one need from the bottom must be meant before you can move to the next one.

when the need for safety and security is meant, then one moves to the social need on the pyramid. social need is very important and essential to our everyday living that is to human thriving, as one is hungry when he do not eat so we are restless and depressed when  our social needs are not meant.

children values friendship and wants to have friends they can trust and lean on while adults seeks to advance in their careers and make a difference in their various  field. when these need are meant, the children/adult feel a sense of fulfillment and love.

The issue of airplane-pilot exhaustion is an issue of growing media concern. Select a theoretical perspective, and describe how it would explain this.

Answers

The correct answer to this open question is the following.

The theoretical perspective that would explain this issue of airplane-pilot exhaustion would be the following.

As this is an issue of growing media concern, we can use the Conflictive Perspective with the Control of Media and Technology theoretical perspective. Media sometimes tries to disrupt society with the way they cover news and the different approaches they use. Specialists have different points of views that try to give the audience enough reasons why it is important to follow an issue. Most of the time is just to create controversy instead of trying to reach a solution.

Following the studies of Gatekeeping, som media companies define their own agenda or news agenda, deciding what content the audience is going to watch. So media owners can create the agenda, expand news cover about a certain event or public issue, and end it whenever they want.

Why did North Africa develop independently from the rest of the African continent

Answers

They had access to the Mediterranean Sea which allowed them to trade with more countries easily and that they were influenced greatly by Middle Eastern culture. They had a different language, different political and cultural history, and a different geographical region. Also, most North Africans are mixed with West Asians (middle easterners) and Europeans.

How did George Bush help improve U.S relations with the Soviets?

Answers

Answer:

Correct Answer: George Bush helped improved U.S relations with the Soviets through his act of diplomancy with the last soviet leader. This could be seen in the series of reactions to events which he showed.This shows that he is a moderate leader rather than being aggressive and too boldly.

For example, during the collapse of Soviet Union, he didn't antagonise the regime but rather kept his criticism to himself. And, also, he met Gorbachev in Malta, where series of discussion was held on nuclear arms reduction and improvement of relationship between both countries.

Explanation:

give two reasons why land ownership was a constant cause of conflict between fijians and europeans

Answers

Answer:

for resources

for survival

Explanation:

The main cause of conflict between fijians and europeans over the ownership of the land because the europeans attack on the lands of fijians and for defending their lands the fijians also attack on the european soldiers. The european soldier comes to the lands of fijians because these lands were enriched with diamond, gold and other valuable minerals so for obtaining these resources, they attack on these lands.

Researchers claim that 60 tissues is the average number of tissues a person uses during the course of a cold. The company who makes Kleenex brand tissues thinks that the claim is untrue, but is not sure whether the average is greater than or less than 60. What are their null and alternative hypotheses?

Answers

Answer:

H0 : μ = 60 and H1 : μ ≠ 60

Explanation:

H0 : μ = 60 and H1 : μ ≠ 60

Where ;

H0 = the null hypothesis

μ = mean value

H1 = alternative hypothesis

The null hypothesis is our initial assumption, which is the claim that the average number of tissue used during the course of a cold is 60.

The alternative hypothesis will look to negate the null hypothesis, which is to establish that the mean number of tissues used during the course of a cold is not 60, meaning it could be less or more.

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:

What is tradition? Write on your own ways.

Answers

different beliefs the move from generation to generation in 1 or more tribes

i think it wrong but i tried

It is where you carry on a certain event or social event, every year. So then it becomes a regular thing you do every year. Which then become a tradition

Which statement about the influence of individuals and/or groups of people in history is false?
a. They have the ability to change society through intended and unintended consequences.
b. They include both well-known and ordinary individuals and groups of people.
c. They include political parties, special interest groups, and professional associations.
d. They provide structure and stability to society

Answers

Answer:

B.

Explanation:

they include both well known and ordinary individuals and group of people.

Beliefs that include varied experiences (both positive and negative) of parenting are referred to as

Answers

Answer:

The answer to the question is "Pragmatic realism"

Explanation:

Parenting is often measured by principles adopted by parents which include behavioral complex  in influencing the lives of their children and social functioning.

Positive parenting is associated with show of empathy, love, correction towards their children. This serves to lower risk of depression among children and overall boost their self confidence. Negative parenting is  associated with show of negligence, lack of care, abusive by parents towards their children.

Pragmatic Realism is the varied experiences which include both positive and negative challenges of parenting.

Pragmatic realism, in this context, explains how parents go about dealing with experiences of positive or negative parenting. It doesn't just stop on how to deal with the situation alone, but pragmatic realism focuses also on addressing situations logically.

plz help, ethics isn't my best subject, what does this mean??????????????
brainliest will be given
(is social studies to do with ethics and this?)
Answer the following:
‘’The only wrong thing to say about racism, is nothing’’ Do you agree?

Answers

Answer:

It means that when you aren't speaking up against racism, when you aren't doing anything that means its wrong

Answer:

No

Explanation:

Saying that there is nothing wrong with racism is pure wrong. It means that you will be agreeing with the fact that discrimination is ok. Racism is a matter that has been spoken about for centuries. But, a very small fraction agree with the fact that it is ok. Thus, from this fact you can see that there is clearly something wrong.

Hope this helps

A patient who has suffered a small, localized injury to the brain and who, as a result, never feels hungry and must be forced to eat has probably sustained damage to the thalamus? true or false

Answers

The correct answer is False

Explanation:

Hunger is regulated by the hypothalamus, which is a region located in the brain. Due to this, people with injuries in this zone might experience issues regulating their appetites such as lack of satisfaction after eating or lack of impulse to eat (hunger). Thus, if a patient does not feel hungry and experienced a brain injury, this is likely related to the hypothalamus. On the other hand, the thalamus, which is a different zone in the brain located above the hypothalamus regulates sensory impulses and movements but it is not related to appetite or hunger.

The patient who suffers a small localization injury to the brain never feels hunger and is should be forced to eat has sustainable damage to the thalamus is false.

Does a parent never feel hungry after damage to the thalamus. ?

The thalamus is a small part of the brain and is found just above the brain stem. The organ has extensive nerves that connect the midbrain and cerebral cortex. The main function is to relay the sensory and motor signals to the cortex.

The damage to this region can lead to sensory problems and behavioral changes. Such as struggle to find the right words and memory problems.

Find out more information about the has suffered.

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Roosevelt wanted Congress to repeal ______________.
a.
foreign policy
c.
expansion policy
b.
isolation policy
d.
imperialism

Answers

Answer:A -foreign policy

Explanation:

Psychologists believe that heredity does not play a role in behavior or cognitive processes. true or false

Answers

Answer: False

Explanation:

pleaseeee answerrrrr
who is the main new right thinker

Answers

Answer:

Alain de Benoist.

Explanation:

Which country was once called East Pakistan?

Answers

Answer:

Bangladesh was once called East Pakistan.

Currently known as Bangladesh, the country was once a known as East Pakistan. The country was liberated and declared itself as an independent state in 1971.

Answer:

Bangladesh was once called as East Pakistan.

It is separated from India in 1973. And its name was given as Bangladesh.

PLS HELP!!! Which of the following statements best describes the level of development found in sub-Saharan Africa, as a region?

A. Most countries have higher than average development.

B. Most countries are considered average with regard to development.

C. Every nation in the bottom ten in development is located in Africa.

D. Although many countries have low levels of development, several countries have higher than average development.

Please select the best answer from the choices provided

Answers

Answer:

d

Explanation:

Identify and describe 4 advantages of a researchers deciding to use a pilot study as part of their research project

Answers

Answer:

The researcher can see possible experimental errors in advance. The researcher can modify specific points before starting the project. The researcher can predict whether a change of equipment or approach will be necessary. The researcher can predict whether the results will be positive or negative in relation to the hypotheses.

Explanation:

The pilot study is a type of test for a research project. It is characterized by an experiment done on a smaller scale than the real experiment that will be carried out in the complete project, in other words, the pilot study is a reduced version of the project and is very favorable for a research project to be successful in its investigation. Among the various advantages, the pilot project allows:

The researcher can see possible experimental errors in advance. The researcher can modify specific points before starting the project. The researcher can predict whether a change of equipment or approach will be necessary. The researcher can predict whether the results will be positive or negative in relation to the hypotheses.

What happens in the demilitarized zone?

Answers

The demilitarized zone is an area in which treaties or agreements between nations, military powers or contending groups forbid military installations, activities or personnel.

Robert La Follette championed reforms that

Answers

Robert La Follette (1855-1925) was a Republican politician who held a variety of public offices, from county district attorney, to Wisconsin Governor, to national representative and Senator. His autobiography traces that public life. He championed most reforms associated with the progressive movement--regulation of business interests (especially the railroads) and utilities; election reforms; taxation reform; and public management of public resources by highly qualified, non-partisan public servants.

hope fully this wht u r lookin for

Africa’s largest lake is Lake __________.

Answers

LAKESIDEEEEE AND UPPER DOWN SIDE

What three countries border Honduras

Answers

Guatemala El Salvador and Nicaragua

What is the meaning of conaculta?

Answers

Answer:  It classifies the National Council for Culture and Arts. This was created to coordinate cultural, artistic policies, organizations, and agencies.

Hope that helped

Explanation:

Answer:

The Secretariat of Culture (Spanish: Secretaría de Cultura), formerly known as the National Council for Culture and Arts (Spanish: Consejo Nacional para la Cultura y las Artes or CONACULTA), is a Mexican government agency in charge of the nation's museums and monuments, promoting and protecting the arts.

HOPE IT HELPS :)

PLEASE MARK IT TH BRAINLIEST!

in your on words, what is a foster family?

Answers

Answer:

To me, :

Foster families are families that are created for kids whose parents are dead and unable to take care of them . It's like a 2nd chance for the kids (a second chance for them to know what the love of being in a family feels like.)

Explanation:

Note :In foster families , the children ended up living with foster families for more than two months

Family : According to the definition i grew up to know ,

Family is a group of people related by blood , marriage or adoption.

A foster family is a non blood family that sometimes can give you the feeling of a real home or not depending on your perspective

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.

what are the long term effects of protests?

Answers

Answer:

It can weaken a country's economy, for two reasons: a) many workers will stop doing their job to join the protest, and b) many shops will be looted and vandalized. Security will also go down, as criminals will often use the social chaos to reak more havoc. Many public events will be cancelled too. Infrastructure will also get wrecked, like traffic lights, shops, ATMs and cars too.

PLEASE ANSWER

In a dysfunctional family children are socialised and taught the acceptable norms and values of society???? True or False????

Answers

Answer:

true

Explanation:

what is
Social Studies

Answers

Answer:

various aspects or branches of the study of human society, considered as an educational discipline.

Explanation:

Answer:

Social studies can also be referred to as social sciences. It's a field which deals with human behavior, relationships, resources, and institutions. Specific topics within social studies that are studied in school coursework include geography, anthropology, economics, history, sociology, political science, and civics.

Explanation: Hope this helps!

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Zoe mows lawns in the summer to earn extra money. She usually charges $15 per week, but she offers a special rate of $59.50 if a customer prepays for 5 weeks. How much does a customer pay for each week with the special rate? (Please enter your answer without units.) * a student is asked to draw an atom of sulfur on a board. the pictures below represents what the student drew. what is wrong with this sulfur atom plzzzz help i need to finish up Harasti was inspired to build his hotels after he saw seahorses living in old fishing traps. What is the volume of a fishing trap that is 2 feet wide, 5 feet long, and 3 feet tall?HELP ME DO THIS !!!! Muiz bought 8 mangoes forN160.00 and sold each one forN25.00. What was his percentage which equation represents a line perpendicular to the line shown on the graph Which of the following statements is true of a gas?It has a fixed volume, but not a fixed shapeIt has closely packed moleculesIt can change into a liquid by adding heatIt takes the shape and size of a container When is the magnitude of the acceleration of a mass on a spring at its maximum value?A. when the mass has a speed of zeroB. when the mass is moving upwardC. when the mass has no displacementD. when the mass is12x How many tablespoons are in 5 quarts Select the correct text in the passage. Which sentence in this excerpt from the Declaration of Independence indicates that the colonists did not wish to remain hostile toward Great Britain in the future? In every stage of these Oppressions We have Petitioned for Redress in the most humble terms: Our repeated Petitions have been answered only by repeated injury. A Prince whose character is thus marked by every act which may define a Tyrant, is unfit to be the ruler of a free people. Nor have We been wanting in attentions to our Brittish brethren. We have reminded them of the circumstances of our emigration and settlement here. We have appealed to their native justice and magnanimity, and we have conjured them by the ties of our common kindred to disavow these usurpations, which, would inevitably interrupt our connections and correspondence. They too have been deaf to the voice of justice and of consanguinity. We must, therefore, acquiesce in the necessity, which denounces our Separation, and hold them, as we hold the rest of mankind, Enemies in War, in Peace Friends. PLEASE HELP WILL GIVE 100 points Record the data from each trial in the data chart below. Be sure to fill in the chart completely.Test OneParent 1: FFParent 2: FFPhenotype ratio:short fur: long furTest TwoParent 1: FfParent 2: FFPhenotype ratio:short fur: long furTest ThreeParent l: ffParent 2: ffPhenotype ratio:short fur: long fur Ms. Ironperson and Mr. Thoro are makingAvenger posters to give children when theyvisit Avenger Academy. Ms. Ironperson hascompleted 12 posters and will complete 6more per day. Mr. Thoro has not started yetbut can make 12 per day. At some point Mr.Thoro will catch up and both will have finishedthe same number of posters. When this doeshappen, how many posters will each Avengerhave completed?If x denotes the number of days and y denotesthe number of posters, what are the equationsneeded to solve this problem? (7 points) Find mHIJ if mHIQ=25x+1 and mQIJ= 100 and mHIJ=127x1, What is HIJ? A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work properly. Assume the probability of one part working does not depend on the functionality of any of the other parts. Also assume that the probabilities of the individual parts working are P(A) = P(B) = 0.93, P(C) = 0.95, and P(D) = 0.92. Find the probability that the machine works properly.A) 0.8128B) 0.2441C) 0.8217D) 0.7559 how can the technology used by gates be considered beneficial to the environment? Which of the following choices best describes the behavior of the light rays when they pass through the lens:A)The rays will refract and bend away from each other.B)The rays will refract and bend toward each other.C)The rays will move through the lens without changing direction.D)The rays will bounce off the surface of the lens. An LC circuit has a 6.00 mH inductor. The current has its maximum value of 0.570 A at t =0s. A short time later the capacitor reaches its maximum potential difference of 66.0 V. What is the value of the capacitance? Of the following steps of the Accounting Cycle, which step should be completed first? a. Transactions are posted to the general ledger. b. Closing entries are journalized and posted to the ledger. c. Adjusting entries are journalized and posted to the general ledger. d. Financial statements are prepared. In the water cycle, matter moves towards the pull of gravity during - infiltration and evaporation- transformation and infiltration - evaporation and transpiration * CORRECT ANSWER:*- D: evaporation and transpiration the particles with a negative charge are 1) protons2)neutrons3)electrons What is the solution to this equation?3x - 7 + 4x = 28O A. x= 35O B. x = 21O c. x= 5O D. x= 3