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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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What layer of the skin contains blood vessels, nerves and hair follicles?
LiRa [457]

Answer:

The answer to your question is Dermis

Explanation:

Below the epidermis is the dermis. This is where our blood vessels, nerve endings, sweat glands, and hair follicles are.

7 0
3 years ago
..can anyone tell why can't we text anything in indian brainly <br>3724221217<br>12345<br>​
Mademuasel [1]

Answer:

because its not international language

Explanation:

because its not international language like English

4 0
3 years ago
Read 2 more answers
A standard solution is prepared for the analysis of fluoxymesterone (C20H29FO3), an anabolic steroid. A stock solution is first
VLD [36.1K]

Answer:

The final solution has a concentration of 5.95 * 10^-6 M

Explanation:

<u>Step 1:</u> data given

Mass of fluoxymesterone : 10mg = 0.01g

Molar mass of  fluoxymesterone = 336g/mole

Volume = 500 mL =0.5 L

<u>Step 2:</u> calculate Concentration of  fluoxymesterone

Concentration = mole / volume

⇒ To find the concentration, we first need to find the number of moles

⇒moles fluoxymesterone= mass of fluoxymesterone / Molar mass

0.01g / (336g/mole) = 2.976 *10^-5 mole

C =  2.976 *10^-5 mole / 0.5 L = <u>5.95 * 10 ^-5 M</u>

<u>Step 3:</u> Calculate dilution

⇒ If 10 mL  is diluted to 100 ml then this is a 10x dilution (100 ml /10 ml = 10) so the final solution will be 10 x more dilute.

⇒5.95 * 10^-5 M /10  = 5.95 ^* 10^-6 M

We can control this through the following formula: M1 * V1 = M2 * V2

5.95 *10^-5 * 10 * 10 *^-3 = M2 *0.1 L

M2 = 5.95 * 10^-6 M

6 0
4 years ago
Determine the electron-group arrangement, molecular shape, and ideal bond angle(s) for each of the following:
lubasha [3.4K]

Solution :

a). $SO_3$

  This compound is known as sulfur trioxide.

  The molecular shape of sulfur trioxide is trigonal planer.

   And the bond angle is 120°.

b). $N_2O$

   This compound is known as Nitrous oxide. Here, nitrogen is in the center.     There is no lone pair around the nitrogen atom and it forms two sigma bonds with the other two atoms.

 It is linear in shape.

  The bond angle between them is 180°.

c). $CH_2Cl_{2}$

  This compound is known as the Dichloromethane.

   The molecular shape of the compound is tetrahedral.

   The bond angles is 120°

   

6 0
3 years ago
Please answer this question
tankabanditka [31]
A.0.103M
B. 0.0168mol
C.24.6ml
Work shown in picture
3 0
3 years ago
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