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geniusboy [140]
2 years ago
8

PLEASE HELP EATHER ANSWER ONE OR ALL OR HOW MANY YOU WANT

Chemistry
2 answers:
Klio2033 [76]2 years ago
5 0

Answer:

Describe the scientific method/process and list its steps:

The scientific method consists of six steps:

1. Define purpose

2. Construct hypothesis

3. Test the hypothesis and collect data

4. Analyze data

5. Draw conclusion

6. Communicate results

But what is it?

The scientific method is a process with the help of which scientists try to investigate, verify, or construct an accurate and reliable version of any natural phenomena.

-

Define speed and velocity:

Speed is the quantitative measure of how quickly something is moving. Velocity defines the direction of the movement of the body or the object. Speed is primarily a scalar quantity. Velocity is essentially a vector quantity. It is the rate of change of distance.

List the three Laws of Isaac Newton and provide an example for each law.

1 -  An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. It may be seen as a statement about inertia, that objects will remain in their state of motion unless a force acts to change the motion.

(example: A coin put on top of a paper on the table will stay in place when the paper is pulled.)

2 - That force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration, i.e. F = m*a.

(example: A truck which carries less mass will have a bigger acceleration that a truck which carries more mass)

3 - States that for every action there is an equal and opposite reaction.

(example: Our hand feels pain when we hit the table because the table gives force as a reaction to our hand)

List the two types of waves.

1. Mechanical Wave -->  A mechanical wave is a wave that is an oscillation of matter and is responsible for the transfer of energy through a medium.

2. Electromagnetic Wave -->  Electromagnetic waves are created by a fusion of electric and magnetic fields. The light you see, the colours around you are visible because of electromagnetic waves.

-

What is electricity?

Electricity is the flow of electrical power or charge.

-

Discuss what is electromagnetism.

Electromagnetism is a branch of physics that is about the electromagnetic force that is between electrically charged particles. Electromagnetism is the basic reason why the electrons are bound to the nucleus and responsible for the complete structure of the nucleus!

lidiya [134]2 years ago
3 0

Explanation:

Speed is the rate of an object moving along a path, whereas velocity is the direction of motion

Electricity is the flow of electric charge

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2C18H38 + 5502 → 36CO2 + 38H2O
Mars2501 [29]

Answer:

Octadecane + Dioxygen = Carbon Dioxide + Water

Explanation:

Octadecane - C18H38

Oxidation Number

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Dioxygen - O2

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When a cube of manganese oxide was added to a solution of hydrogen peroxide, water and oxygen were produced. Manganese oxide was
FromTheMoon [43]

Smashing the cube into pieces

Explanation:

Smashing the cube into pieces will most likely increase the reaction rate between the manganese oxide and hydrogen peroxide.

The rate of a chemical reaction is a measure of the speed of a chemical reaction.

Some factors that affects the rate of chemical reaction are:

  1. Nature of the reactants
  2. Concentration of the reactants or pressure if gases.
  3. Temperature
  4. Presence of a catalyst.
  5. Sunlight(some reactions are light catalyzed)
  • The nature of reactants implies the physical state of matter, bond type or surface area exposed of reacting species.
  • The surface area exposed is directly proportional to the reaction rate.
  • Breaking the cubes into smaller pieces exposes more surface area to the chemical action and the reaction rate increases.

Learn more:

Activation energy brainly.com/question/3930233

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How does adding oxygen (O2) to this reaction change the equilibrium? 2SO2(g) + O2(g) ⇌ 2SO3(g) A. The equilibrium shifts right t
liq [111]

The equilibrium law or the Le Chatelier's principle states that when a system encounters a disturbance like a temperature, concentration, or pressure modifications, it will react to restore a new state of equilibrium.  

In the given case, adding reactant, that is, oxygen will shift the reaction in the direction of the product, on the basis of Le Chatelier's principle. Thus, the equilibrium will move toward the product side. So, the correct answer will be option A, that is, the equilibrium shifts right to produce more SO₃ molecules.  


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