An experiment is performed in which a crystalline substance is added to a beaker filled with room-temperature water. The following observations were made:
1. The crystals dissolve.
2. A precipitate forms.
3. The bottom of the beaker feels warm to the touch.
4. Bubbles begin to form in the water.
Which observations are evidence that a chemical reaction took place?
Give a explanation.

Answers

Answer 1

Answer:

Explanation:

I think it is a precipitate because that is when two solutions react to make a solid. I am not sure of this answer, however, so please correct me if I am wrong. Everybody makes mistakes sometimes. Hope this helped!


Related Questions

A citizen wants to petition for fewer limits on an individual's ownership of guns. Which statement would he most likely use to support his petition? (1 point) Federal background checks have prevented firearm sales to felons and fugitives from justice. Guns that were banned in one state can be purchased in neighboring states that allow them. The United States Department of Defense pursues research in improving weapons designs. The United States Bill of Rights protects the right of the people to keep and bear arms

Answers

question is not clear

The answer would be A. that would support the fact that they are doing sales and other stuff to get money from the government

How did the Toleration Act of 1649 show that religious attitudes in the middle colonies were different from the attitudes in New England? The law showed that the middle colonies would not tolerate the Puritan beliefs that were common in New England. The law showed that the middle colonies wanted to follow European attitudes, not those of New England. The law showed that the middle colonies were more tolerant of different religions than the Puritans of New England. The law showed that the middle colonies would not follow laws that forced them to be tolerant, unlike the New England colonies.

Answers

Answer:

The law showed that the middle colonies were more tolerant of different religions than the Puritans of New England.Explanation: I took the test;)

Answer:

The law showed that the middle colonies were more tolerant of different religions than the Puritans of New England.

Explanation:

The spread of the European witch craze during the Middle Ages was fueled by:
Group of answer choices

plage

rumors

printing press

warfare

Answers

Answer:warfare

Explanation:

Warfare! I got it right on edge 2020!

The Articles of Confederation was important because it – *

A. created a means for establishing the executive branch
B. provided every citizen in America the right to vote
C. enabled each of the 13 states to make separate treaties with foreign nations
D. was the first form of government for America

Answers

Answer:

B

Explanation:

How many different Aboriginal languages were there believed to be?
A. approximately 300
B. approximately 500
C. approximately 400

Answers

If your talking about the Australian Aboriginal languages there is about 300 if not please be a little more specific, hope this helps. :)

What happened after Georgia became a royal colony in the 1750s?
A). The King of England outlawed the practice of all religions other than Catholicism.

B). Colonists in Georgia gained more control over government through colonial assemblies.

C). The royal governor banned the practices of slavery and indentured servitude in the colony.

D). Trade between American Indians and colonists increased and improved the colonial economy.

Answers

Answer:

It is c or d Im not that sure

Explanation:

Hope that helps

THIS IS 10PTS. Give me a Solid argument FOR or AGAINST that includes your claim and evidence for your reasoning about Amendment 76: Citizenship Qualification of Voters. NO COPYING AND PASTING.

Answers

The amendment 76 "aims to solve a problem that doesn’t exist." One, it only changes one word of the Colorado constitution from "every citizen" to "only citizen". Two, this would would go against the Colorado Votes Act which allows 17 who will be 18 to vote in primary elections. So, this can lead them not to vote when they do turn 18. Three, from what I can see for amendment 76 is supress voters. “What it’s going to do is it’s going to open the door for limited voting like voter ID requirements.” So, this amendment has no benefits that I can see and only causes more issues than it is "solving". So, I am against amendment 76 because it only supresses voters and can lead people to not vote.

Explanation:

Do you need more?

If I wanted to send a copy of my publication to a friend but I didn't want it to appear in the body of the e-mail, I would select the option to _____.

Answers

Answer:

You could put in another inbox.

Explanation:

Which of the following statements concerning parenting is not accurate?
A- Parents who are active outside the home have the most trouble dealing with empty nest.
B- Most parents are generally satisfied with the decision to have children.
C- People are having children at a later age than in past generations.
D- Parents most often experience an increase in happiness once children leave the home.

Answers

Answer: D- Parents most often experience an increase in happiness once children leave the home.

Explanation: The statement that parents most often experience an increase in happiness once children leave the home is not accurate as regards the empty nest syndrome. This is defined as the feeling of loneliness or depression experienced by some parents when their children have matured and left home. It also leads to a number of worries about their safety, ability to care for themselves, etc. though they encourage them to become independent.

Parents most often experience an increase in happiness once children leave the home is the statements concerning parenting is not accurate. Hence, option D is correct.

What is parenting?

The act or process of becoming a parent. : the rearing of a kid by its parents. The act of caring for someone in a parental manner.

The four primary parenting philosophies utilized in child psychology today—permissive, authoritative, neglectful, and authoritarian—are based on the study of Stanford academics Eleanor Maccoby and John Martin as well as developmental psychologist Diana Baumrind.

Three main objectives are shared by parenting styles all around the world: protecting children's health and safety, preparing them for adulthood, and passing along cultural values. A strong parent-child bond is essential for a child's growth.

Thus,  option D is correct.

For more information about parenting, click here:

https://brainly.com/question/14532614

#SPJ6

how does population growth affect natural resources ?

Answers

Generally speaking, as the human population grows, our consumption of natural resources increases. More humans consume more freshwater, more land, more clothing, etc. ... For example, natural gas plants have become increasingly more efficient, thus humans are able to obtain more energy out of the same amount of gas

1.explain the scam
2.Identify the warning signs that it is a scam

Answers

Answer:

Here is your answers

Explanation:

1)scam is a form of fraud and one of the most common types of confidence tricks. The scam typically involves promising the victim a significant share of a large sum of money, in return for a small up-front payment, which the fraudster requires in order to obtain the large sum.

2): Calling or emailing you, claiming to be from the government and asking    you to pay money.

:   Asking you to pay money or taxes upfront to receive a prize or a gift.

:Asking for access to your money-such as your ATM cards, bank accounts, credit cards, or investment accounts.

How to prevent scams

:Keep your personal information to yourself

:Socialize safely online

:Consider the National Do Not Call Registry

:Stay away from “guarantees” of scholarships

:Don't buy bogus weight loss products

here are some of the guiding values for the constitution and their meaning rewrite them by matching them correctly
a)sovergin. I) government will not favor any religion

b) republic ii) people have the supreme right to make decisions

c) fraternity. iii) head of the state is a elected person

d) secular iv) people should live like brother and sister​

Answers

A ; Right to Equality

B ; Right to freedom

C ; Right to constitutional remedies

2 Why should
we study
Study enviroment
education ? discuss any of the five
reasons​

Answers

Answer:

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Answer:

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☪[tex] \underline{ \underline{ \text{Question}}} : [/tex]

Why should we study environment education ?

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Environment is the totality of surrounding that encompasses various biotic , abiotic and socio-cultural components. Environment comprises various factors like air , water , land , soil , biodiversity , microorganisms , other natural resources and some other abstract components created by human beings. Environment education can be defined as the process of recognizing values and clarifying concepts to understand and appreciate the interrelationship among man , his culture and biophysical surroundings. As we live in the environment , we need proper knowledge about environment. We should study environmental education because of the following reasons :

Environment education gives knowledge and information about the environmental situations.

: The information that the environment education gives is useful to bring changes in attitude and behaviour of students towards the environment. It gives information about status of natural resources , natural composition of various factors of components , endangered situations of environment etc.

Environment education gives techniques to conserve environment

: This branch of education teaches us about different methods of conservation of environment. In - situ and ex - situ conservation method of rare living creatures , conservation of abiotic components and human assistance to the nature for continuation of natural processes of environment are some of the main examples focused and taught through the environment education.

This branch of education assists people in developing rational attitude and behavior towards the environmental situation.

: Environment education helps in changing the behavioral pattern of people to promote environmental situation and also to be adjusted well in the environment. Environment sanitation , protection of natural resources , identification of natural hazards and many other factors are also taught by environment education.

Hope I helped!

♡ Have a wonderful day / night ツ

~TheAnimeGirl ♪

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Which Greek city-state did the Persians invade?

Answers

The greek city state the persians invaded was Athens

Answer: The Persians invaded the Athens.

I am not fully sure so please double check this.

I hope I helped you!

Seleccioná la palabra para completar correctamente el espacio en blanco. Para conocer las características de una población se puede recurrir a diversas fuentes. Cuando se realiza un censo o se encuesta directamente a sus miembros, hablamos de una fuente __________. A. Secundaria B. Censal. C. Primaria. D. Documental.

Answers

Answer:

C. Primaria

Explanation:

Una fuente primaria se refiere a la información obtenida de una observación de primera mano de una cosa.

Cuando se observa directamente a los miembros de una especie, se recopila información más confiable. Dado que esta información se recopila a través de una observación directa de primera mano y un censo de las especies involucradas, la fuente de información se obtiene de una fuente primaria.

what are two ways in which cultural integration is occurring

Answers

Answer:

This occurs in many immigrant homes as a survival tool, regardless of where the individual moves to or is from.This occurs when the people from a culture adopt the essence of another culture, such as its attitudes and ceremonies, while at the same time maintaining their own culture.

Use the drop-down menus to complete the statements. Thewere the first civilization in. They practiced agriculture and were known for large stone carvings shaped like.

Answers

Answer:

The  Olmecs

Were the first civilization in  Mesoamerica.

They practiced agriculture and were known for large stone carvings shaped like heads.

Explanation:

Answer:

See attached

Explanation:

a. Which community wears Bakkhu and Docha?
i. Tharu
iii. Sherpa
ii. Brahmin​

Answers

Answer:

iii. Sherpa

Explanation:

Sherpa are famous with their culture and behavior. The dress they wear are unique than other ethnic group of Nepal. They wear thick, coarse wrap around robe named Bakhu and woolen boots called Docha.

what do you think is the effect of having nice table setting in your dining table?​

Answers

Answer:

People respect a table that is set. It makes you and your household seem more put together.

Explanation:

Not sure if there is supposed to be evidence to back this up or where it's coming from tbh so hope that helps :)


Please help !!!

three gender traits for men & women (6 traits total)

Answers

Answer:

men: a pp, no chesticles, an adams apple in their throat.

woman: a v , chesticles, uteruses.

Explanation:

hope that helps

Select all that apply.
The Paris Peace Accords _____.

were signed before the Easter Offensive
ended U.S. military involvement in Vietnam
were not signed by the United States
were signed on January 27, 1973

Answers

Answer:

are

Explanation:

Why did Ousamequin reach out to the people of Plymouth?​

Answers

Answer: Ousamequin decided to reach out to this group of settlers. It was a peril to his people and his ascendancy, but he was inclined to take it. Yet in the terminus, the people from the Mayflower would turn out to be just a diminutive part of a coming wave of European colonists that no one would be able to stop

Explanation: hope this helps

Which most likely explains why some countries lack opposition parties? A.They lack popular support. B.They destroy the election process. C.They oppose the interests of the people. D.They are prohibited by law.

Answers

Answer:

D. They are prohibited by law.

Explanation:

They are seen to be limited by the country/government laws. These laws and countries are simply seen to practice autocracy and a certain number of country are seen to practice this system; example is China. This leadership system is directly seen in involvement of having uncontrolled power and also unlimited access as a single monarch/leader as the case may be. Therefore, any state or country that does not accommodate an opposition party system can be simply seen to run an autocrat system if government.

Answer:

D

Explanation:

The sum of 20 observations is 300 and its sum of squares is 5000 and mean is 15. Find the coefficient of variation

Answers

This is your perfect answer

The Coefficient of variation is 20%

We know that coefficient of variation (CV) is computed as :

CV = (SD / Mean) * 100

But

Standard deviation (SD)

= [tex]\sqrt240 / 15[/tex]

= [tex]\sqrt16[/tex]

= 4

Mean = 20

Hence,

CV = (4 / 20) * 100

CV = 0.2 * 100

CV = 20

Therefore, Coefficient of variation is 20%

Learn more about coefficient of variation here : https://brainly.com/question/5069437

What were Voltaire's beliefs about religion?

Answers

Answer:

Voltaire, in keeping with other Enlightenment thinkers of the era, was a deist — not by faith, according to him, but rather by reason. He looked favorably on religious tolerance, even though he could be severely critical towards Christianity, Judaism and Islam.

should the federal courts have the authority to review the way a state legislature draws district lines for state elections?

Answers

The Power of the Courts

The federal courts' most important power is that of judicial review, the authority to interpret the Constitution. When federal judges rule that laws or government actions violate the spirit of the Constitution, they profoundly shape public policy.

what is RBCs....write its functions?​

Answers

Answer:

red blood cell is RBCs full

Answer: Red blood cell

Explanation:

RBC is representing red blood cells and the main function of red blood cells is to transport oxygen. Red blood cell is the most common type of blood cell and it is very important in human life and good function of the human body.

That transportation is starting from the lungs and it goes to the tissues.

When it comes to tissues, there it is used as a source of electrons and also ATP synthesis that is found in mitochondria.

e) How do social problems and evils hamper in the development of a society?
Give reasons.​

Answers

Answer:

The main cause of the society are:

Lack of education

Discrimination

Urbanization

Unemployment

Poverty and many others

EXPORTS
Products and natural resources that ancient
Chinese people traded (extra items they had to
trade away

Answers

Answer:

iron and lead, cereal, spices, precious stones, crystal, papyrus, ivory and incense, clay vessels, footwear, woolen cloth and blankets, amber, from cereals, oils, wines to gold, silver and other minerals.

Explanation:

these are the things they exported

andres1000

can i have brainlyest? :D

Answer: silk, paper, paper money

Explanation:

who was the first person that started end SARs​

Answers

Answer : yes

Explanation: dun know

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