procedures in research method under chemistry​

Answers

Answer 1

Answer:

Step 1: Make observations.

Step 2: Formulate a hypothesis.

Step 3: Design and perform experiments.

Step 4: Accept or modify the hypothesis.

Step 5: Development into a law and/or theory.

Contributions & Attributions.

Explanation:

Classify each statement as a law, a theory, an experiment, a hypothesis, an observation.

Ice always floats on liquid water.

Birds evolved from dinosaurs.

Hot air is less dense than cold air, probably because the components of hot air are moving more rapidly.

When 10 g of ice were added to 100 mL of water at 25°C, the temperature of the water decreased to 15.5°C after the ice melted.

The ingredients of Ivory soap were analyzed to see whether it really is 99.44% pure, as advertised.

Solution

This is a general statement of a relationship between the properties of liquid and solid water, so it is a law.

This is a possible explanation for the origin of birds, so it is a hypothesis.

This is a statement that tries to explain the relationship between the temperature and the density of air based on fundamental principles, so it is a theory.

The temperature is measured before and after a change is made in a system, so these are observations.

This is an analysis designed to test a hypothesis (in this case, the manufacturer’s claim of purity), so it is an experiment.


Related Questions

List two differences between state senators and state representatives. (Site 1)

Answers

Answer:

A Senator represents his or her state for a six year term but a Representative serves for a two year term

Which of the following statements is true about harriet beecher stowe?

Answers

Answer:

Her book became a best seller in France.

Explanation:

i hope this helps you, tell me if i'm wrong :)

What is one way that Congress used normal legislation to affect the executive branch of government?
Congress set up agencies, departments, and offices.
Congress created the presidency and the vice presidency.
Congress established federal courts below the Supreme Court.
Congress passed laws to regulate commerce.

Answers

Answer:

Congress passed laws to regulate commerce.

Explanation:

dyduf

Answer:

congress passed laws to regulate commerce.

Which action was unique about the 2008 presidential election?



For the first time, neither party nominated a white man for president.


Neither candidate had served in an elected office before.


It was the first election in which a woman had a very good chance of winning a major party's nomination.


The Republican party nominated an African American for the first time.

Answers

Answer: A. It was the first election in which a woman had a very good chance of winning a major party's nomination.

Explanation: The election to president of the United States of 2008 took place on Tuesday, November 4, 2008. The election determined the voters of the Electoral College of the United States and the presidential candidate who received the majority of the votes (270) by the College. Electoral to be the 44th President of the United States was Barack Obama, while Vice President Joe Biden was the 47th Vice President of the United States. If no presidential candidate had a majority vote of the Electoral College, the president would have been elected by the House of Representatives of the United States, which would have voted for States, and each State would have one vote. Likewise, if there had not been a majority in votes for the office of vice president, the United States Senate would have been in charge of electing it, voting through ballots.
But none of this was necessary, because Obama's victory was incontestable. In fact, the Democratic candidate won that day the support of states that had not supported his party for many years, such as North Carolina (the last time had been in 1976), or Indiana and Virginia (1964). As for the popular vote, Obama obtained the support of 69 498 516 voters, being the highest figure ever achieved by a presidential candidate until today.
As occurred in the 2004 presidential election, the allocation of electoral votes to each state was based partially on the US census for the year 2000. The elected president and vice president took office on Tuesday, January 20, 2009
Simultaneously the elections to the House of Representatives and, in thirty-three states, the elections to the Senate were developed. The governors of eleven states were also elected.

Answer:

A

Explanation:

Took the test

Two to three sentences describing how Native Americans contributed to the war effort and how these contributions impacted the outcome of the Revolutionary War

Answers

Answer:

The first few Native Americans to join the war chose to help the the patriots. Some other Native Americans joined the British side and fought to defeat the American invasion of Canada. The British had an advantage when convincing the Native Americans to join them: While the colonists were eager to spread westward and discover other places, the British policies before the war had tried to limit the encroachment of white settlers onto Native lands.

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During the American Revolutionary War, Native Americans took different sides. They contributed to the war as:

Spies informing the Americans of British plans Soldiers fighting against the British and the Americans

Some Native Americans such as the Maliseet allied themselves with the Americans and usually went to Canada where they could spy on the British. They would then relay what they saw to the colonists.

Other Native Americans engaged in battle such as the Oneida who fought alongside the colonists at Saratoga.

The actions of the Oneida impacted the Revolutionary War because their support of the Americans allowed the colonists to hold onto New York and avoid defeat at the hands of the British.

In conclusion, the Native Americans were quite involved in the American Revolutionary War by helping both sides.

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I Need help with this history ASAP !!!

Answers

Explanation:

7. During the 1947 action, African American and white bus riders tested the 1946 U.S. Supreme Court decision in Morgan v. Virginia that found segregated bus seating was unconstitutional. The 1961 Freedom Rides sought to test a 1960 decision by the Supreme Court in Boynton v.

8. Southern local and state police considered the actions of the Freedom Riders to be criminal and arrested them in some locations. In some localities, such as Birmingham, Alabama, the police cooperated with Ku Klux Klan chapters and other white people opposing the actions, and allowed mobs to attack the riders

9. On May 17, a new set of riders, 10 students from Nashville who were active in the Nashville Student Movement, took a bus to Birmingham, where they were arrested by Bull Connor and jailed. The students kept their spirits up in jail by singing freedom songs

10. His administration permitted the Freedom Riders to be imprisoned in Mississippi on flimsy breach-of-peace charges, but also put pressure on the Interstate Commerce Commission to remove Jim Crow signs and end segregation of interstate bus travel facilities.

11. James Meredith, (born June 25, 1933, Kosciusko, Mississippi, U.S.), American civil rights activist who gained national renown at a key juncture in the civil rights movement in 1962, when he became the first African American student at the University of Mississippi

12. (August 25, 1919 – September 13, 1998) was an American politician who served as the 45th governor of Alabama for four terms. A member of the Democratic Party, he is best remembered for his staunch segregationist and populist views. During his tenure, he promoted "industrial development, low taxes, and trade schools".

13 Theophilus Eugene “Bull” Connor (July 11, 1897 – March 10, 1973) was an American politician and member of the Democratic Party who served as Commissioner of Public Safety for the city of Birmingham, Alabama, for more than two decades. He strongly opposed the Civil Rights Movement in the 1960s.

14 He worked to overturn segregation at the University of Mississippi, end the segregation of public facilities, and expand opportunities for African Americans, which included the enforcement of voting rights. A college graduate, Evers became active in the Civil Rights Movement in the 1950s

15. Facing federalized Alabama National Guard troops, Alabama Governor George Wallace ends his blockade of the University of Alabama in Tuscaloosa and allows two African American students to enroll on June 11, 1963.

16. A. Philip Randolph and Bayard Rustin began planning the march in December 1961. They envisioned two days of protest, including sit-ins and lobbying followed by a mass rally at the Lincoln Memorial. They wanted to focus on joblessness and to call for a public works program that would employ black people.

sry i dont know 17 th answer

explanation

plz mark me as brilliant

What is the definition of a territory?

a geographic area that is politically autonomous.
a political area with geographic restrictions of another country.
a geographic area under political administration of another country.
an independent state that is politically autonomous.

Answers

A geographic area under political administration of another country.

Answer:

a

Explanation:

cause i said so

What is the election process for president of the United States?​

Answers

United States presidential election process

Presidential elections use the Electoral College.

To win the election, a candidate must receive a majority of electoral votes.

In the event no candidate receives a majority, the House of Representatives chooses the president and the Senate chooses the vice president.

Answer:

The election process of the US is quite simple and easy to explain. The legal citizens of each state vote for their desired candidate. The electoral college meets the tally and the winner in determined. In order to win an election, the candidate must get a majority of the electoral votes.

Explanation:

name four contribution of Charles Darwin to the theory of evolution

Answers

Answer:Darwin's greatest contribution to science is that he completed the Copernican Revolution by drawing out for biology the notion of nature as a system of matter in motion governed by natural laws. With Darwin's discovery of natural selection, the origin and adaptations of organisms were brought into the realm of science.May 15, 2007

Explanation:

It won’t let me put the answer here


PLEASE HELP WILL MARK
BRAINNLIEST
1) Which statement accurately describes George W. Bush's approval ratings throughout his presidency?

A: He became more and more popular as the effects of his foreign policy decisions became clear

B: His approval ratings swung up and down, but reached a record high as he left office.

C: He reached his highest approval ratings after the Iraq War ended in total victory for the U.S.

D: He started with an extremely high rating but lost popularity over time as the Iraq war wore on.

2) Why did politicians come together to create the No Child Loft Behind Act?

A: Several education scandals after the election prompted the Bush administration to take drastic action.

B: Americans wanted to counter the 9/11 attacks with something that proved the country's strengths .

C; American students seemed less prepared academically than students from other countries .

D: President Bush thought that the act would create an issue that would increase his popularity

3) What criticism did George W. Bush receive after his response to Hurricane Katrina?
A: He was concerned about counter terrorist operations that he was neglecting key domestic issues .
B: he ordered an early and unnecessary evacuation of the city , long before the hurricane hít land.

C: His administration reacted too slowly to the disaster , showing a lack of leadership .

D: the mayor of New Orleans blamed Bush's lack of concern for the extent of the natural disaster .

4) Why is the Patriot Act controversial?

A: Many Americans thought the Patriot Act didn't go far enough in making private correspondence public

B: Many Americans that it violates constitutional rights to privacy for the sake of security.

C: The act was written and pushed through Congress at a time when President Bush was unpopular .

D: Terrorist attacks actually increased in the United States after the passage of the Patriot Act .

Answers

Answer:

1. He started with an extremely high rating but lost popularity over time as the Iraq war wore on.

2. American students seemed less prepared academically than students from other countries.

3. His administration reacted too slowly to the disaster, showing a lack of leadership.

4. Many Americans feel that it violates constitutional rights to privacy for the sake of security.

Explanation:

Just took the test

Answer:

so they can mark the other guy smarter

Explanation:

What is Detente ?
A) The breakup of the Soviet Union.

B) The result of the Soviet -Afghan War.

C) The gradual easing (decline ) of military tensions between the USSR & The US.

D) An increase in military tensions between the US & USSR .​

Answers

Answer:

C

Explanation:

The term, in diplomacy, originates from around 1912 when France and Germany tried unsuccessfully to reduce tensions.

Modern industry has converted the little workshop of the patriarchal master into the great factory of the industrial capitalist. Masses of laborers, crowded int
the factox are organked like soldiers. They are slaves of the machine and the manufacturer, Instead of rising as industry progresses, they sink deeper and
deeper into poverty. Owing to the use of machinery and to division of labor, the work of the proletariat (worker) has lost all individual character, and
consequently, all charm for the workmen. He becomes a limb (part of the machine, and it is only the most simple, most monotonous, and most easily acquire
Back that is required of him
A. Workers are crowded into factories. B. Farming was much safer and preferred C. The lower-classes created factories to increase production no

Answers

Answer:

C. The lower-classes created factories to increase production.

Explanation:

The lower-classes is responsible for higher production of factories because they work in the factories for late hours. Both men and women works in the factories in order to feed their family which leads to increase in the production of goods in the factories. Without lower class workers, the increase in the production of goods will not be possible so that's why we can conclude that lower class workers are necessary for production of goods.

Plz help me well mark brainliest if correct.....???

Answers

Answer:

B - Related to the Community

If this helped, please mark me brainliest (๑・ω-)~♥”

Answer: Your answer here will be A) a general area

Have a nice day!

How long did the Tulsa Race Massacre last?​

Answers

In 1996, 75 years after the massacre, a bipartisan group in the state legislature authorized the formation of the Oklahoma Commission to Study the Tulsa Race Riot of 1921.
...
Tulsa race massacre.

PLZ I NEED HELP I AM TAKING A TEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Match the following items. Match the items in the left column to the items in the right column.
1) mountains that run along the western coast of South America A) Andes
2) mountains that form part of the boundary between Europe and Asia B) Ural

Answers

Mountains that run western coast of South America, the Andes mountain range

The Ural Mountains. The Urals rise like a long and narrow spine across western Russia, forming a natural divide between Europe and Asia.

Answer:

Sahara- Largest Desert

Andes- Mountains in South America

Ural- Mountains in Asia/Europe

Everest- Tallest Mountain

Danube- River in Europe

Congo River Basin- In Africa

Explanation:

I did this test and got it right.

What president was Andrew Jackson

Answers

Answer: The 7th

Explanation:

Q1. Despite making rigorous attempts against British, why did people of the Subcontinent remain unsuccessful against the British rule? State any three reasons. (3 marks)

Answers

Explanation:

British raj, period of direct British rule over the Indian subcontinent from 1858 until the independence of India and Pakistan in 1947. The raj succeeded management of the subcontinent by the British East India Company, after general distrust and dissatisfaction with company leadership resulted in a widespread mutiny of sepoy troops in 1857, causing the British to reconsider the structure of governance in India. The British government took possession of the company’s assets and imposed direct rule. The raj was intended to increase Indian participation in governance, but the powerlessness of Indians to determine their own future without the consent of the British led to an increasingly adamant national independence movement.

where is the Aqsa masjid

Answers

Answer:

Old City of Jerusalem

Explanation:

located in the Old City of Jerusalem

Why do you think Stephen F.
Austin thought it necessary to demand proof of
settlers' high morals for his colony?

Answers

Austin hoped people of high morals would have fewer conflicts with each other in the new colony and be more productive in helping it to prosper.

(10 points) How did the United States raise most of the funds needed to pay for the war? ( 1) through taxes on income and certain goods 2) through the sale of war bonds O 3) through loans from Allied powers 4) through mass production in industries.​

Answers

Answer:

4) through mass production in industries.​

Explanation:

what did Americans fear the most about the members of the Communist Party

Answers

Answer: Red Scare

Explanation:

There is something called the Red Scare and it’s a widespread fear. The very first Red Scare was World War One.

explain the formation of the old testament using the three stages

Answers

Answer:

the first stage being the period of Jesus' life, the second stage being the period of Oral Tradition and the third stage being the period of the Evangelists (16). The first stage is the period of Jesus' life. ... The third stage is the period of the Evangelists.

The Gospels were written in three stages: the first was during Jesus' life, the second was during Oral Tradition, and the third was during the Evangelists' period (16).

The first stage of Jesus' life is the time when he was alive.

How did the Old Testament come to be?

The first five books of the Old Testament, known as the Pentateuch (which corresponds to the Jewish Torah), are divided into four sections: the history books, which tell the tale of the Israelites from their conquest of Canaan to their defeat and exile in Babylon.

The poetic and "Wisdom books," which deal in various ways with queries of good and misery in the world; and the books of the biblical prophets, warning of the implications of turning away from God.

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which of the following best describes the flaw in the quote of Neville according to the appeasement

Answers

Answer:

haucer served in the military.

Chaucer was a civil servant.

*Chaucer made shoes.

Chaucer was a construction manager.

Explanation:

received cash from Rajesh rs 30000 was ommited to post in cash account rectify after preparation trial balance ​

Answers

Answer:

Date              Account title                              Debit                         Credit

XX-XX-XX    Cash                                      Rs 30,000

                       Account Receivable - Rajesh                               Rs 30,000

Rajesh is a Receivable so when they pay, reduce the amount they owe by the amount they paid. Doing so would mean crediting their account.

The Cash account will be debited to show that Cash was received because assets like cash are debited when they increase.

At what point during the Civil War was the emancipation proclamation signed?

Answers

The emancipation proclamation was signed on January 1st 1863 (three years into the war)

after latin american independence its economy
a) remained similar to what it was during the colonial period
b) underwent a period of fast industrialisation
c) become self-sufficient and isolated
d) became a major exporter of manufactured goods

Answers

Explanation:

LETTER C.

CARRY ON LEARNING

After Latin American independence its economy become self-sufficient and isolated. Thus, the correct answer is option C.

What was the condition of the Latin American economy?

The nation-states in the region of Latin America range in economic complexity from simple to complex. The countries of North America, Central America, South America, and the Caribbean make up the individual countries that make up the Latin American economy, which is reliant on exports.

Following independence, several Latin American economies suffered declines in the nineteenth century.

Much of Latin America entered the global economy as a commodity exporter in the late nineteenth century. Industrial growth and economic expansion were assisted by foreign capital investment, the building of infrastructure, such as railroads, growth in the labor market due to immigration from outside, the strengthening of institutions, and the expansion of education.

Therefore, Latin American economy become self-sufficient and isolated.

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On average, Washington citizens paid about
in state and local taxes in 2010.

Washington citizens pay more in
than the average for the United States.

Unlike other states, Washington does not collect

Answers

6.5% the total could be 10.4%

JP and his family decided to take a summer trip to get away from the stresses of everyday life. They thought that a camping trip was the perfect solution. On their trip they saw white-tailed deer, red foxes, and even a bald eagle. They decided to set up their camp site underneath a patch of beech trees because their leaves provided adequate shade during the day.

What type of ecosystem was JP’s family camping in?
A.
the tundra
B.
the desert
C.
the grasslands
D.
the deciduous forest

Please select the best answer from the choices provided

Answers

d; the deciduous forest. hope this helps

What reform eased tensions between patricians and plebeians in the early years of the Roman Republic?
A. the Pax Romana
B. the creation of the Roman Senate
C. the dictatorship of Cincinnatus
D. the Twelve Tables

PLS HURRY I GOT 15 MINS TO FINISH

Answers

Answer:

d - the twelve tables

Explanation:

While the existing laws had major flaws that were in need of reform, the Twelve Tables eased the civil tension and violence between the plebeians and patricians.

Answer:

What reforms eased tensions between patricians and plebeians in the early years of the Roman Republic? The twelve Tablets.

Explanation:

That is the correct answer 100%. Option D) Have a great summer.

During the 1930s, which widespread sentiment contributed to the rise of totalitarianism

Answers

The widespread sentiment that influenced the rise of totalitarianism was a fear of instability and the rise of nationalism to nations like Italy and Germany. After WW1, many nations were in debt and were declining in certain aspects, totalitarianism promised a more centralized and effective government. The Great Depression made Fascism become even more popular with many nations adopting the new ideology, such as Spain, Germany, Siam, Venezuela, Brazil, Peru, and even a strong political party in Britain led by Oswald Mosley.
Nationalism, poor economy, and the Treaty of Versailles
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