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

In what campaign did god extend the day this allowed Israel to rout the enemy

Answers

Answer: Against the five Amorite Kings

Explanation:

As the Israelites journeyed from Egypt to Canaan, they had to fight a number of nations who had come out to destroy them so that they would not reach Canaan. Gideon was no such nation. Gideon decided to make peace with Israel so that they would not suffer defeat.

When the other Amorite Kings including the kings of Jerusalem, Hebron, Jarmuth, Lachish and Eglon heard of it they went to attack Gideon which sent messages to Joshua(leader of Israel) asking for help.

Joshua arrived to save his allies and defeated the Amorites but because night was coming and the Amorites would escape under cover of darkness, Joshua ordered the sun to remain where it was and give Israel another day so that they could completely defeat the Amorites. God granted this and Israel was able to rout the enemy.

Who won the 1836 presidential election?

Answers

Answer:

Explanation:

Martin van buren ,he belongs to democratic party,his home state was new york ,he won by total vote of 170

Should citizens arrests be allowed? why?

Answers

Answer:

This depends....see explanation  below:

Explanation:

This could go one of two ways, if allowed.

A) People would go crazy arresting people for minor offenses or absolute nonsense, and police stations would be filled with people in handcuffs for going 6 over the speed limit. And when people are given power, it makes them think that they're now able to use force in unneccesary situations. We'd have chaos in the streets.

B) Cops don't always do their job, and there are good people out there who can help. If some creep is disturbing a young woman on the sidewalk at night and takes it way too far, a good samaritan could come by and arrest him, taking care of the problem right then and there.

It really does depend on the situation, which is why it may not be a good idea.

Could we really trust everyone to use this for good?

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.


Which country
was not created after WWI? (Think of the before and after WWI map)?

Answers

The Treaty of Versailles created several new countries in Europe, most of them built around distinct ethnic identities such as Austria. Other new countries, such as Czechoslovakia, were carved from older empires and populated by two or more major ethnic groups.

I HOPE THIS HELP

Which of these women’s rights advocates fought for women’s suffrage, abolishment of slavery, and co-authored the Declaration of Sentiments declaring that women were created equal with men?

A. Jeannette Rankin
B. Elizabeth Cady Stanton
C. Carrie Chapman Catt
D. Margaret Sanger

Answers

Considering the available options, the women’s rights advocate who does the aforementioned activities is Elizabeth Cady Stanton.

This is because Elizabeth Cady Stanton is famous for being the women’s rights advocate who fought for women’s suffrage, abolishment of slavery, and co-authored the Declaration of Sentiments declaring that women were created equal with men.She is also known to have studied at Troy Female Seminary and participated in women’s property rights reform in the 1840s.Elizabeth Cady Stanton also read the Declaration of Sentiment at the Seneca Convention on July 20, 1848.

Hence, in this case, the correct answer is option B. Elizabeth Cady Stanton.

Learn more here: https://brainly.com/question/14929131

Answer:

option B is the right answer

Explanation:

6. This law banned discrimination based on race, religion or ethnic origin in
hotels, and other companies that did business with the federal government

Answers

Answer:

The Civil Rights Act of 1964

Explanation:

1. First Shots Fired on Fort Sumter
II. Congressional Reconstruction Act Passed
III. Lee and Grant Meet at Appomattox
IV. Battle of Gettysburg Occurs
What is the CORRECT order for the events above?

Answers

Answer: i think its I, III, II, IV

Explanation:

Explique a importância da Corte Francesa ao se reunir em Versalhes e como era a política de favores que lá aconteciam.

DO NOT ANSWER IF YOU ARE GOING TO TROLL

Answers

I’m sorry I can’t understand the question can you pls translate it

How is the author affecfed by the forest fire?

Answers

Answer: Slash and burn fires are set every day to destroy large sections of forests. Of course, these forests don't just remove trees; they kill and displace wildlife, alter water cycles and soil fertility, and endanger the lives and livelihoods of local communities. They also can rage out of control.

Explanation:

What foreign policy goal is the National Labs aiming to meet?

A. protecting national security

B. promoting the spread of democratic principles and government

C. supporting humanitarian causes

Answers

Answer:

C.

Explanation:

Supporting humanitarian causes

Why are there many climate zones in California?

Answers

Answer:

California's climate varies widely from hot desert to alpine tundra, depending on latitude, elevation, and proximity to the coast. ... The influence of the ocean generally moderates temperature extremes, creating warmer winters and substantially cooler summers in coastal areas.

Answer:

California's varies widely from hot desert to alpine tundra, depending on latitude, elevation and proximity to the coast. The influence of the ocean generally moderates temperature extremes, creating warmer winters and substantially cooler summers in coastal areas

Hope it helped.

what is the fifteenth Amendment about

Answers

It gave citizens (no matter their race) the right to vote

Answer:

the 15th amendment to the U.S. constitution was granted to African American men to the right to vote by declaring "right of citizens of the United States to vote should not be denied or at bridge by the United States or by any state on the account of race color. condition of servitude".

The Cold War timeline

Answers

Answer:

Explanation:

Chronology of the Cold War Date

Dean Acheson suggests ways that the Soviet Union could end the Cold War. 16th March, 1950

North Korean forces invade South Korea. 25th June, 1950

Harry Truman orders US troops to Korea. 28th June, 1950

United Nations troops arrive in South Korea. 1st July, 195

Who did Martin marry? And what was she an ex of?

Answers

Answer:

Martin married Katharina von Bora

ex was a nun sheesh

have a good day :)

Explanation:

Which was a major reason that friction existed between Great Britain and its North
American Colonies during the pre-Revolutionary period?

1. British trade and monetary policies reduced colonial business opportunities and profits.

2. The British landed aristocracy refused to allow colonial farmers to buy their own land.

3. Severe economic depression in Great Britain and the Colonies led to political upheavals in both areas

4. feelings resulted from the industrialization of the Colonies.

Answers

Answer:1

Explanation: because of the british

What type of
clothing would be
preferred to use
during a trans-
Saharan journey?
A. Dark clothes to shield
the sun
B. White or light clothes
because of the heat
C. Heavy wool to repel the
mosquitoes
D. Rain gear for the storms

Answers

Answer:

B. White or light clothes because of the heat

Explanation:

A trans-Saharan journey begins from the Sahara to reach sub-Saharan Africa and North Africa. In the 8th to the 17th century, the Tran-Saharan route was taken to trade goods from Africa to Europe. In the early period, the trade route assisted in transporting slaves and food to different places.

It is recommended that to take a journey one must wear white or light clothes because of the heat. As the temperature is very high in the Saharan region it is preferable to wear light colours because they reflect heat which helps our body to keep cool.

The fair deal included twenty-one points one of which

Answers

Answer: raising the minimum wage

Explanation:

The options given are:

A) ending the draft.

B) lowering prices on food.

C) raising the drinking age.

D) raising the minimum wage.

The Fair Deal was the proposals that was put forward by former President of the United States, Harry S. Truman to the Congress.

Some of the policies that he out forward included:

• expansion of Social Security,

• public housing policies

• full-employment program,

• minimum wage increase

• slum clearance.

• permanent Fair Employment Practices Act

• health insurance

• equal rights etc

a document that helped initiate the American Revolution
Enlightenment concepts can be seen in the
A Constitution
B. Magna Carta
C English Bill of Rights
D. Declaration of Independence
Please select the best answer from the choices provided
A
0 0 0 0
Save and Exit
Nex
Sube
Mark this and return

Answers

D. Declaration of Independence

For early Christians, following church teachings and not involve observance of the holy sacraments. True or false

Answers

Answer:

I just did this and got the answer : true

Explanation:

I got it right for me hope i helped you

What is the oldest contry on the world?​

Answers

Answer:

Japan is the oldest country in the world.

Karl Marx promoted which economic idea?
O A. Market economies will break down because workers will demand
more power
B. Trade between countries is dangerous and should be limited
whenever possible.
C. Businesses should spend their own funds instead of borrowing
from banks.
O D. Governments have no legal right to force any person or business
to pay taxes

Answers

Answer:

Option B

Explanation:

Karl Marx was against capitalism that favored business, production and trading across the border. He was a believer of communism and hence wanted to restrict the business boundaries. He also said that capitalism promoted materialism due to which our present history is like this. If instead of materialism our history would have been based on ideas then it would have been way different than what it is now.

Hence, option B is correct

Does anyone know who the CEO of Brainly is?

Answers

Answer:

Michał Borkowski

Explanation:

Answer:

Michał Borkowski is the co-founder and CEO of Brainly.

In your own words, I would like you to explain the American Revolution and why it is so important to American History. The response needs to be at least 2 well written paragraphs.


Please help it’s due today. NO LINKS PLEASE!!

Answers

The American revolution was the war that the US win its freedom from England. The war broke out because of England’s unfair tax rates and rules, finally after a few years of England outrageous rules the Declaration of Independence was written. Upon presenting the declaration to England they were outraged and the war began. The war had many casualties on both sides but England had it far worse than the US. The English belived taking cover was for cowards, this ended in there defeat in many battles. The war ultimately ended on sept 3 1783 when French allies and US troops surrounded English troopers and general lord Cornwallis. Cornwallis surrendered his sword and the war was over, America had independence. The war lasted from April 19 1775 - sept 3 1783.

Similarities/differences between Chicano/a Movement and Black Civil Rights Movement

Answers

Answer:

The Chicano Movement of the 1960's, also called the Chicano Civil Rights or El Movimiento, was a civil rights movement extending the Mexican- American Civil Rights with the goal of achieving Mexican American Empowerment.

Explanation:

thank me later

Help!!!!!!!!!!!!!!!!!!!!!!!!

Answers

investors in the stock market

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 outbreak of the American Revolution had great consequences for American Indians. Many saw the Revolution as a contest for Indian lands as well as for liberty. Some groups, such as the Cherokee warriors, defied their elders and attacked frontier settlements all along the southern frontier.

Explanation:

The outbreak of the American Revolution had great consequences for American Indians. Many saw the Revolution as a contest for Indian lands as well as for liberty. Some groups, such as the Cherokee warriors, defied their elders and attacked frontier settlements all along the southern frontier.

What was the American revolution?

Between 1765 and 1791, British America underwent a cultural and political change known as the American Revolution.

13 of Britain's North American colonies rose in rebellion against British imperial control, starting the American Revolution, an enormous political and military battle that raged from 1765 to 1783. The initial uprising was triggered by the British monarch and Parliament imposing taxes without the approval of the colonial inhabitants.

The four key factors that contributed to the American Revolution were the Taxation Acts, the Boston Massacre, the Boston Tea Party, as well as the Intolerable Acts.

In the American Revolutionary War (1775–1783), the Americans in the Thirteen Colonies created independent states which defeated the British, gained independence from the British Crown as well as founded the United States of America as the first nation-state based on liberal democratic Enlightenment principles.

Learn more about the American Revolution here:

https://brainly.com/question/27833385

#SPJ2

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.

If you need more help on the subject, I suggest looking through this: https://www.battlefields.org/learn/articles/roles-native-americans-during-revolution

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.

Find out more at https://brainly.com/question/24915691.

5. When Congress doesn't approve a president's choice for a federal court, this is an example of
A veto
B. Ibuster
C.judicial review
D.checks and balances

Answers

D. Checks and balances

Answer:

Checks and balances

Explanation:

I just learned this in school too, but I also checked on another site. I hope I helped you out :)

Why am I blocked from the site?

Answers

Answer:

u r blocked after 5 question per day

Answer:

I am paying for the site and am getting blocked.

Explanation:

I have no idea!

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