1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Katen [24]
3 years ago
5

Procedures in research method under chemistry​

History
1 answer:
gizmo_the_mogwai [7]3 years ago
4 0

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.

You might be interested in
Washington established which of the following even though it was not mentioned in the constitution?
iVinArrow [24]

The correct answer is He instituted a presidential cabinet.

Washington created a cabinet in order to help in making decisions for the country. At this time, Washington only had 4 cabinet members. This included Thomas Jefferson (Secretary of State), Alexander Hamilton (Secretary of Treasury), Henry Knox (Secretary of War), Edmund Randolph (Attorney General).

Each of these men were well versed in the areas they advised Washington in. For example, Jefferson was an expert in foreign affairs. This is why he was appointed the Secretary of State, as this role is based around the ability to make treaties/work with other countries.

4 0
3 years ago
Read 2 more answers
Who were the Hessians?
Tomtit [17]
It is certainly B. <span>German soldiers hired by the British
</span>
5 0
3 years ago
Read 2 more answers
In regard to regulating companies Roosevelt wanted them to serve
RideAnS [48]

In regard to regulating companies, Roosevelt wanted them to serve the public in the best way possible.

8 0
3 years ago
Read 2 more answers
5- Em janeiro de 1905, cerca de 200 mil operários declaram greve geral na capital São Petersburgo e marcharam em direção ao palá
MArishka [77]

Answer:

ok

Explanation:

6 0
3 years ago
Use the timeline below to answer the following question: Which of these events happened last year
just olya [345]
C the united states entered world war 1
8 0
4 years ago
Other questions:
  • Germany viewed the Russian czar's full mobilization of the army as an act of
    11·1 answer
  • Which if the following shows a similarity in the business practices of John D. Rockefeller and Andrew carnegie l?
    9·2 answers
  • What were some challenges that communist countries faced?
    8·1 answer
  • Select the items which limited the power of the colonial governments.
    6·1 answer
  • Question 1 (1 point)
    12·2 answers
  • List reasons why the<br> Russian Revolution was an<br> Important event
    9·1 answer
  • Which of the following describes an outcome of the record drought in the early 1930s?
    10·2 answers
  • Name one short-term consequence and one long-term consequence of the alliance between the Wampanoag and the Pilgrims.
    8·1 answer
  • Skim the Universal Declaration of Human Rights document again. Write a two- to three-paragraph response comparing this document
    15·1 answer
  • How did the magna carta affect the kings power <br>HELPPPPP
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!