what is a concentration?​

Answers

Answer 1

Answer/Explanation:

In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture. Several types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration.

A concentration refers to a subject or study within a specific major. As part of the degree coursework, concentration classes count toward your major requirements as well.


Related Questions

separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells.

Answers

Answer:

The answers anaphase. anaphase is the fourth phase of mitosis

If the mass of an object is 100 and Net force is 400, what would be the Acceleration?
And explain.

Answers

Answer:

[tex]4m/s^{2}[/tex]

Explanation:

I'm assuming the units for force and mass are Newtons and kilograms, respectively.

Rearranging Newton's first law (F=m*a) to solve for acceleration:

F=m*a

[tex]a=\frac{F}{m}=\frac{400 N}{100 kg}=4m/s^{2}[/tex]

The acceleration is 4 meters per second squared and was found by rearranging Newton's first law in order to solve for acceleration.

three energy changes that result in movements accuring in your body as sit down reading book?

Answers

Gravitational to Kinetic to Chemical

In star wars, john williams used the __________ concept of romantic opera in which a character is assigned a short melody. so, famous characters like darth vader, princess leia, and han solo all have their own melody.

Answers

In Star Wars, John Williams used the Leitmotif concept of romantic opera in which a character is assigned a short melody.

It is used for famous characters like Darth Vader, Princess Leia, and Han Solo all have their melody.

Leitmotif is generally described as a recurring theme shown or appears over musical or literary composition.

Leitmotif is more common in operas and symphonic poems. It is attributed to a specific person, idea, or situation.

Hence, in this case, it is concluded that in the movie Star Wars, John Williams used the Leitmotif concept of romantic opera.

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what do all forms of electromagnetic radiation have in common?

Answers

Answer:

All electromagnetic waves have two wavefronts, which are an oscillating electric field and an oscillating magnetic field.

Explanation:

PLEASE HELP
If the change in energy of an object is 50J, the work done on the object is 

Answers

Answer:

Explanation: Since work done is= to energy lost,the work done on this object will also be 50J...

object Travels 24 M with a speed of 4 metre per second and then another 32 with a speed of 8 metre per second the average speed of the object is
(a)6m/s (b)4m/s (c)5.6m/s (d)6.5m/s​

Answers

Answer:

Total distance covered S=16+16=32 m

Total time t=4+2=6 s

Average speed V

avg

=

t

S

=

6

32

=5.33 m/s

When you're driving in a car and you speed
up, what are you doing?

Answers

Answer:

i belive i dont knownow

Explanation:

You are using acceleration because you are speeding up the car making the number go up and increase

Forces come in pairs. What are these pairs called?

Answers

Answer: Action-Reaction force pairs

Explanation: please make me brainiest thanks

Answer:

"action-reaction force pairs"

Explanation:

...

what is the force on a 976kg vehicle that accelerates at 2.5m/s

Answers

Answer:

2440 N

Explanation:

As,F=m*a.....

From the question we have

force = 976 × 2.5

We have the final answer as

2440 N

15. A boy on board a cruise ship drops a 30.0 gram marble into the ocean. If the resistive force proportionality
constant is 0.50 kg/s, what is the terminal speed of the marble in m/s?

a. 0.06
b. 0.294
c.0.588
d. 60.0
e. 588.0

Answers

Answer
I could be wrong but I’m pretty sure it’s C
Explanation

the force that attracts objects towards another object.

Answers

Answer:

Gravity Force

Gravity Force(also known as Weight) The force of gravity is the force with which the earth, moon, or other massively large object attracts another object towards itself. By definition, this is the weight of the object your welcome

V1= 25 L
T1= 200 degrees Kelvin
V2= 30 L
T2= ? degrees Kelvin

Answers

25x = 200*30
25x= 6000
x= 240

how many atoms are in the moon??

Answers

The number of atoms on the moon is 1.33× 10¹⁵ atom.

What is an atom?

The atom consists of matter that may be split without releasing electrical charges.

It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.

In the nucleus proton and the neutron is exists. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.

The response is 1.33× 10¹⁵ atom. According to the Jefferson Lab of the US Department of Energy.

This answer is derived from an assessment of the number of atoms present in each of the Earth's constituent elements, such as silicon, iron, magnesium, sulfur, and silicon.

Hence the number of atoms on the moon is 1.33× 10¹⁵ atom.

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1. How is power defined? *

A. the quantity of work accomplished
B. the direction of the force applied to an object
C. the total distance an object is moved
D. the rate at which work is accomplished

Answers

Answer:

D. the rate at which work is accomplished

what is the main deterrant to switching to electrically powered cars?

Answers

Answer:

Availability of charging

Explanation:

Assuming the car is not a hybrid and your traveling a very long distance far from civilization, you wouldn't be able to charge the car if it runs out of power as no outlets would be around.

constraints for the sub-problem for pollution

Answers

AIR POLLUTION

Hope this helps

I WILL CROWN THE BRAINLIEST IF YOU ANSWER CORRECT
ELECTROMAGNET WAVES
Travel through what?
Carry energy, often called what?
Emitted by what?
Three Examples of electromagnetic waves.​

Answers

Answer:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

Example: Radio waves, microwaves, visible light, and x rays

They are more alert as they travel through EM sound waves. They transport energy via their B-T energy mega bites because this allows them to transport energy in a wave-worthy manner. Emitted by carbon dioxides provided to us by seed plants on the dairy life cycle of living. B-Y-T, mega energy, and tooo notch energy are some examples thing. I had this exact questions and I put these answers and got 110% for smart words lol

4. A desk with a mass of 10 kg is pushed across a floor with an acceleration of 4 m/s?. What
is the force on the desk? Use the equation F = ma.

Answers

40 N. If you’re using F=MA MxA would be 10x4 which would get you 40 N

Answer:

Below

Explanation:

All we need to do for this question is to plug in our values and solve!

      Force = mass x acceleration

      Force = 10 kg x 4 m/s^2

     Force = 40 Newtons or 40 N

If your teacher requires you to round to sig figs it would be :

    F = 4 x 10^1 N

Hope this helps!

identify the types of elements in the schematic diagram give the number of each types

Answers

Where's the diagaram?

A vector starts at the point (0, 0) and ends at (3, 1). What is the magnitude and direction of the displacement?

Answers

Answer:

tbh vector does not have any direction at all the answer is 0

Help me please! I really need it!

Answers

Answer:

5 Hz

Explanation:

count the number of cycles per 1 second

Why did explorers want to find a way accross the North American continent

Answers

Answer:

The Desire for New Trade Routes

Extra:

European explorers found the New World by mistake; they were not looking to find new continents but new sea routes. Europeans mainly wanted to find better trade routes to China, India, and Southeast Asia.

please give brainliest if possible

Which of the following is not a property of Newton’s Second Law?
a. The acceleration of the object is directly proportional to
the force acting on the object
b. The acceleration of the object is inversely proportional to
the mass of the object
c. The object moves in the same direction as the force acting
on the object.
d. There is no relationship between acceleration to force or
mass.

Answers

Answer:

La aceleración

del objeto

es directamente proporcional a la fuerza que actúa sobre el objeto

Explanation:

why does chelsea see sparks as she removes her clothes from the clothes dryer? conduction. induction. static discharge. loss of protons.

Answers

This is electrostatic phenomenon. Chelsea see sparks as she removes her clothes from the clothes dryer because of static discharge.

What is Static Electricity ?

Static electricity is produced by friction when two materials are rubbed together.

Why does Chelsea see sparks as she removes her clothes from the clothes dryer?

The correct answer is because of static discharge.

For instance, when a glass rod is rubbed with silk or cellulose acetate with silk, the glass will become positively charged by loosing electron to the silk whereby becoming negatively charged.

Static discharge occurs during thunder and lightning, and when combing our hair during harmattan season.

Therefore, Chelsea see sparks as she removes her clothes from the clothes dryer because of static discharge.

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Answer:

C) Static Discharge

Explanation:

A cart of weight 20 N is accelerated across a level surface at 0.15 m/s?. What net force acts on
the wagon?

Answers

The net force that acts on the cart of wagon is calculated as 3N

HOW TO CALCULATE NET FORCE:

The net force of a body can be calculated by multiplying the mass of the body by its acceleration. That is;

Force (N) = weight (N) × acceleration (m/s²)

According to this question, a weight of 20N accelerated across a level surface at 0.15 m/s². The net force can be calculated as follows:

F = 20 × 0.15

F = 3N

Therefore, the net force that acts on the cart of wagon is calculated as 3N.

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What is an inclined plane that is wrapped in spiral

Answers

Answer:

A screw

Explanation:

The threads of a screw act like an inclined plane to increase the distance over which you exert the input force.

Kevin and Kisha are ice skating. Kisha has a mass of 60 kg, and Kevin has a mass of 45 kg. As they face each
other, Kevin pushes off Kisha with a force of 54 N. Assume the friction between the skaters and the ice is
negligible.
t
Determine the magnitude of Kevin's acceleration.
Write your answer to two significant figures.
m/s
m

Answers

If Kevin with mass 45kg pushes Kisha with a force of 54N, the magnitude of Kevin's acceleration is 1.2 m/s²

Kisha's mass = 60 kg

Kevin's mass = 45 kg

Kevin pushes off Kisha with a force of 54 N

Since it was Kevin that pushed Kisha, and the required force is 54N, we can look for Kevin's acceleration using the equation below

F  =  ma

The considered mass is Kevin's mass

54   =  45a

a   =   54/45

a   =    1.2 m/s²

The magnitude of Kevin's acceleration is 1.2 m/s²

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which type of star has the least amount of pressure in its atmosphere?

Answers

Answer:

red dwarfs

Explanation:

they are very low mass stars, as a result they have relatively low pressures

Henry is at the state fair. At one booth he throws a 0.70 kg ball forward with a velocity of 22.0 m/s in order to hit a 0.15 kg bottle sitting on a shelf. When the ball makes contact the bottle goes flying forward at 29.0 m/s. What is the velocity of the ball after it hits the bottle?

Answers

The velocity of the ball after it hits the bottle is 15.8 m/s

Let m₁ represent the mass of the ball, m₂ the mass of the bottle, u₁ the velocity of ball before impact, u₂ the velocity of bottle before impact, v₁ the velocity of ball after impact and v₂ the velocity of bottle after impact.

Given that:

m₁ = 0.7 kg, m₂ = 0.15 kg, u₁ = 22 m/s, u₂ = 0, v₂ = 29

momentum before impact = momentum after impact, hence:

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

0.7(22) + 0.15(0) = 0.7v₁ + 0.15(29)

0.7v₁ = 11.05

v₁ = 15.8 m/s

Therefore the velocity of the ball after it hits the bottle is 15.8 m/s

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