The statement "are either elements or compounds" describes a


A. pure substance.


B. mixture.

Answers

Answer 1

Answer: A. Pure Substance

Explanation:

If it is pure the substance has to be either an element or a compound.

Answer 2

Answer:

A. pure substance

Explanation:

This is because matter has distinct properties and the ingredients from sample to sample do not change, and all substances are either elements or compounds


Related Questions

NEED HELP!!!!!!
Which is the BEST description of the role of glucose in the body?

OPTIONS:
A.
It moderates the heartbeat.
B.
It is food converted into fuel.
C.
It regulates body temperature.
D.
It eliminates sugar from the body.

PLEASE NO LINKS

Answers

The answer is B because of photosynthesis and cellular respiration

So for photosynthesis the plant needs

Water Oxygen Corbin dioxide to live and produces glucose/sugar and oxygen

For cellular respiration you as a human need
Oxygen and glucose and produce Corbin dioxide and ATP which is a fancy word for energy

The best description of the role of glucose in the body is that it is the food converted into fuel. Details about role of glucose can be found below.

What is cellular respiration?

Cellular respiration is the process by which living organisms obtain energy for their daily activities by breaking down food molecules in their cells.

The food ingested by living organisms is digested into the simplest form called glucose. The glucose is then broken down during cellular respiration.

During cellular respiration, glucose is broken down to produce energy (ATP), which is the fuel for metabolic activities in the body.

Learn more about cellular respiration at: https://brainly.com/question/13721588

What is the kinetic energy of your car if it has a mass of 100kg and is driving
at a speed of 12m/s?

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

As we know,

[tex]\boxed{ \boxed{kinetic \: \: energy = \frac{1}{2} mv {}^{2} }}[/tex]

where,

m = mass = 100 kg

v = velocity = 12 m/s

let's solve for kinetic energy of car :

[tex] \dfrac{1}{2} \times 100 \times 12 \times 12[/tex]

[tex]100 \times 12 \times 6[/tex]

[tex]7200 \: \: joules[/tex]

A car on a straight road starts from rest and accelerates at 1.0 meter per second? for 10. seconds.
Then the car continues to travel at constant speed for an additional 20. seconds.
[6]
Determine the speed of the car at the end of the first 10. seconds.
m/s

Answers

Answer:

11 or 10 meters a second

Explanation:

pretty sure thats my explanation "pretty sure" like my confidence? mark me brainliest bad at spelling lol

A mason is shot with a constant speed of 7.5 x 10²m/sinto a region, when an electric field produces acceleration on the mason of magnitude 1.5 x 1025 ms-2 directed opposite to the velocity. Find the time taken (b) the distance covered by the mason before coming to rest and (c) the time for which it remains at rest.​

Answers

Answer:

Distance, d = 0.1 m

It is given that,

Initial velocity of meson,

Finally, the meson is coming to rest v = 0

Acceleration of the meson,  (opposite to initial velocity)

Using third equation of motion as :

s is the distance the meson travelled before coming to rest.

So,

 

s = 0.1 m

The meson will cover the distance of 0.1 m before coming to rest. Hence, this is the required solution.  

A whale comes to the surface to breathe and then dives at an angle of 20.0 ∘ below the horizontal (see the figure (Figure 1)). If the whale continues in a straight line for 160 m , how deep is it? How far has it traveled horizontally?

Answers

Answer:

The question is missing something it doesn't say how fast down its going and doesn't show the figure sorry for wasting an answer

15. Starting from rest, an object rolls freely down an incline that is 10 m long in 2 s. The acceleration of the
object is approximately?

Answers

Answer:

a = 5m/s^2

Explanation:

Vi=0 m/s

ΔY=10m

Δt=2s

find acceleration

With the givens and the acceleration being the only one missing, we can safely use the Δy = Vi Δt + 1/2 a (Δt)^2 formula

Plug it in and we get:

10 = 0 x 2 + 1/2 a (2)^2

10 = a2

10/2 = a 2/2

a = 5 m/s^2

I hope this helps :)

which type of thermal energy trnasfer dose a foil wrapping reduce the most

Answers

Answer:

Conduction

Explanation:

Hope this helps :)

pls make brainliest :p

Un resorte experimenta un alargamiento de 7cm al soportar un peso en uno de sus extremos. Si suconstante tiene un valor de 835 N/m, ¿Cuál es el valor de la fuerza de restauración?

Answers

Answer:

ألا تعلم أنني أذكى منك؟

Explanation:

لذا لا تجرؤ على سؤالي هكذا؟

which force is responsible for electric gong ?

Answers

MAGNETIC FORCE...

Have a beautiful and joyful day ahead.

Answer:

Magnetic force

Explanation:

have a nice day

Which line on the graph represents the greatest positive acceleration?

D
A
B
C

Answers

Answer:

I think it's B, if that's wrong I apologize. You might want to do more research on it and find the correct answer if you can, if it's right then you could like my comment, so others know if not give it 1 star, keep it low lol.

Explanation:

The line that represents the greatest positive acceleration is A.

In a velocity-time graph, the slope of the line represents the acceleration. The greater the slope, the greater the acceleration. Line A has the steepest slope, so it represents the greatest positive acceleration.

Line B has a positive slope, but it is not as steep as line A. Line C has a negative slope, which means it represents negative acceleration, or deceleration. Line D is a horizontal line, which means it represents a constant velocity, or zero acceleration.

Therefore, the line that represents the greatest positive acceleration is A.

To know more about acceleration here

https://brainly.com/question/2303856

#SPJ3

my friend and me are struggling help ussss

Answers

Explanation:

according to my sensation : its distance traveled is 24km and time is 6 days.

therefore, the speed is = 24km/6day = 4km/day.( first option)

hope this helps you.

a spiral galaxy can be described as what type of shape

Answers

Spiral galaxies are also known as twisted collection of stars and gas that have often beautiful shape and are made up of hot young stars.

There are various types of galaxies based on their shapes such as spiral, elliptical, oval etc. The spiral shaped galaxies are called spiral galaxies.

What are galaxies?

Galaxies are a groups of stars, dust and dark matter which are connected by the gravitational force. There are billions of galaxies in the universe and each containing trillions of stars. The galaxy nearest to earth is milky way.

The spiral structure that radiate from the galactic disc's core and give spiral galaxies their name. The central bulge, at the ends of which the spiral arms originate, is seen to have an additional component in the shape of a bar-like structure in about two-thirds of all spirals.

Nearly the course of the universe's history, the ratio of barred spirals to barless spirals has probably varied, going from only 10% approximately 8 billion years ago to about a quarter 2.5 billion years ago to over two-thirds of the galaxies in the observable universe at the present.

To find more about galaxies, refer the link below:

https://brainly.com/question/24836631

#SPJ5

What is the acceleration of your car if it has a force of 8000N acting upon
it, and it has a mass of 1000kg?

Answers

Explanation:

F = m a

8000 = 1000 a

a= 8 m/s²

what is the difference between a respirator and a ventilator

Answers

Have a Good day!! (♡_♡)

mark me as BRAINLIEST

What is the difference between thrust and applied force?

Answers

Answer:

Thrust acts on the accelerated object in the direction opposite to the applied force hence it accelerates the object in the direction opposite to the applied force. ... Its magnitude is equal to that of applied force. It always increases the velocity of the object.

Explanation:

2. A 2 kg mass has an acceleration of 3 m/s2. What is the force of the mass?

Answers

Answer: 6N

Explanation:

F=ma

F = 2kg*(3 m/s^2)

F = 6 kg*m/s^2

[kg*m/s^2 = 1 Newton]

F = 6 N

will give correct answer brainliest





Automobile manufacturers, such as Nissan and Toyota, incorporate safety features into their vehicles. Crumple zones in the engine compartment and air bags are two examples of safety technology designed to protect driver and passengers involved in a collision. How do these design features impact the formula above and the force of impact? They decrease the force of impact by providing a cushion during the impact. Smaller force = lower momentum. They decrease the force of impact by extending the time it takes to stop the driver and passenger. Longer time = less force. It takes a longer time for the velocity of the vehicle to decrease, therefore the force is less. Decrease in velocity = less force. When a car rebounds it undergoes a greater change in velocity and the force is decreased. Lower force = greater change in velocity.​

Answers

Answer:

C

Explanation:

suppose the blocks collide elastically. picking the positive direction to the right, what is the velocity of the bigger block after the collision takes place?

Answers

We have that with v_1 =v this goes to show that  the velocity of the bigger block after the collision takes place is v

From the question we are told

Suppose the blocks collide elastically. picking the positive direction to the right, what is the velocity of the bigger block after the collision takes place?

Generally the equation for Momentum   is mathematically given as

P=mv

Therefore

[tex]m_1v_2=m_2v_2[/tex]

Hence

[tex]v_1=\frac{m_2v_2}{m_1}[/tex]

Therefore

[tex]v_1=\frac{mv_2}{2m}\\\\v_1=\frac{v_2}{2}[/tex]

Hence

[tex]2v+v=v_1+v_2\\\\v_1=v[/tex]

Now

with v_1 =v this goes to show that  the velocity of the bigger block after the collision takes place is v

For more information on this visit

https://brainly.com/question/21811998

Think about the reasons behind the cost of the Birkin bag and explain why it costs $60,000 in your own words. Do you think that this is a good marketing strategy? Why? Can you think of any other products (clothes / elctronics / anything) that use the same strategy? Does it work?

Answers

Answer:

In terms of both price and availability, the Birkin bag is as elusive as it is exclusive. For more than two decades, the bag has been the most sought item in the handbag industry. For such a modest bag, that's a lot of staying power (in looks alone, the design itself takes some 18 hours and is done by a single craftsman).

Of course, it's likely that the bag's rarity is what keeps it at the top of every want list. It is difficult, for example, to stroll into a Hermès store and buy a bag –– even if you could afford to pay the minimum price of $10,000. No, you have to be on an elite list to receive a Birkin.

Explanation:

There are alot more things like the Birkin Bag that use the same marketing skills and it works for alot of companies.

NEED HELP!!!!

When people are sick, it is often recommended that they consume a lot of liquids, particularly water. What is the biological basis of this advice?

OPTIONS:
A.
Water will help flush toxins out of the body.
B.
Drinking will distract them from their illness.
C.
It is always easier to drink than to eat if you are sick.
D.
They are probably sick because they were dehydrated.

PLEASE NO LINKS

Answers

Answer:

A.

Explanation:

Drinking water usually helps with gaining hydration cause usually when you get sick you get weak. thats what u think though

Water will help expel toxins from the body that's why it is recommended to sick people to consume more water. Therefore, option (A) is correct.

Why is it important to stay hydrated during sick?

Proper hydration can be helpful to the skin and mucous cell membranes play a barrier to stop bacteria from entering the body when sick with a virus. Fluid can also help decrease irritation when sneezing, coughing, and even breathing.

Water can help to regulate body temperature, maintain healthy skin and joints, digest food, and help the brain function at its best. Producing requires bodily fluids, like tears and saliva, and removing waste through sweat, and urination.

Dehydration can happen when we lose a high amount of bodily fluids than we’re consuming. This can occur through bodily functions that bring the loss of fluids and electrolytes.

Therefore, it is important to stay hydrated when you are sick.

Learn more about body dehydration, here:

https://brainly.com/question/24342046

#SPJ2

how do the coils impact the strength of the magnetic fieldhow do the coils impact the strength of the magnetic field

Answers

A wire coil is an electrical conductor with one or more turns designed to produce a magnetic field. This is commonly used to increase the strength of a magnetic field. The more turns of wire on the coil, the stronger the magnetic field will be.

A car drove 6 km east, turned 90° to the north, and drove 8 more km. What is the cars
displacement from where they began?

Answers

Answer:

14 km away and a turn of 90°

Explanation:

brailiest pls pls pls

what type of energy results from the position of an object?

Answers

Answer:

Explanation:

Some objects have energy as a result of their shapes or positions. Energy that results from the position or shape of an object is called potential energy. Gravitational Potential Energy – potential energy related to an object's height.

Another name for the arrows in a free-body diagram is calling it a

Answers

Answer:

the free body diagram models the forces acting on an object. The object or 'body' is usually shown as a box or a dot. The forces are shown as thin arrows pointing away from the centre of the box or dot. ... It is important to label each arrow to show the magnitude of the force it represents.

why do solar eclipses happen only during a new moon?

Answers

Answer:

For a solar eclipse to occur the moon must be between the earth and the sun (the light of the sun is blocked)'

By definition this is a new moon (which occurs when the moon cannot be seen because it is located between the sun and the earth).

How much work is done when 0.0042C is moved through a potential difference of 12.0V? Use W = qV
A. 2900J
B. 12J
C. 0.00035J
D. 0.050J

Answers

Answer:

Work done by charge (W) = 0.050 (Approx)

Explanation:

Given:

Charge (q) = 0.0042 C

Potential difference(V) = 12.0 V

Find:

Work done by charge

Computation:

Work done(W) = qV

Work done by charge (W) = (0.0042)(12)

Work done by charge (W) = 0.0504

What is the final velocity of a ball thrown downward at 10 m/s after 2 seconds?

Answers

We have that  the final velocity of a ball thrown downward at 10 m/s after 2 seconds is

V=29.6m/s

From the question we are told

What is the final velocity of a ball thrown downward at 10 m/s after 2 seconds?

Where

a ball thrown downward at 10 m/safter 2 seconds

Generally the Newton's equation for Motion   is mathematically given as

[tex]V=U+at\\\\V=U+gt\\\\V=10+9.8*2\\\\V=29.6m/s[/tex]

Therefore

the final velocity of a ball thrown downward at 10 m/s after 2 seconds is

V=29.6m/s

For more information on this visit

https://brainly.com/question/12319416?referrer=searchResults

11 12 13 14 15 16 17 18 19 20
TIME REMAINING
01:40:56
Who described atoms as small spheres that could not be divided into anything smaller?

Bohr
Dalton
Rutherford
Thomson

Answers

Answer:

jhon Dalton described it

Explanation:

hope it works out for you

if please mark brainiest

John Dalton described atoms as small spheres that could not be divided into anything smaller.

Who was John Dalton?

John Dalton is the scientist who described atoms as small spheres that could not be divided into anything smaller. He proposed his atomic theory in 1803, which included the postulate that all matter is composed of tiny, indivisible particles called atoms. D

Dalton's theory also stated that atoms of different elements are unique in their mass and chemical properties and combine in simple whole-number ratios to form compounds. Dalton's model of the atom was a solid, indivisible sphere that was the smallest possible unit of an element.

While this model has been refined and updated with new discoveries, Dalton's contributions laid the foundation for the modern understanding of atomic structure and chemical reactions.


Learn more about John Dalton, here:

https://brainly.com/question/1500237

#SPJ7

A 3000-kg spaceship is moving away from a space station at a constant speed of 3 m/s. The astronaut in the spaceship decides to return to the space station by switching on engines that expel fuel so that the sum of the forces exerted on the spaceship by the expelled fuel points toward the space station. What is the magnitude of the minimum force needed to bring the spaceship back to the space station

Answers

Answer:

P = m (v2 - v1)     change in momentum

P = - m v1  if v2 is to be zero

F = P / t     change in momentum equals applied force

F = m a = - m v1 / t

a = -v1 / t     or a * t = -v1`

Any combination of a and t that is greater than v1 will bring the space station to a halt

If a is small then t must be large

Any applied force will eventually bring the ship to a halt and then begin the acceleration towards the starting point

the apparent backward motion of a planet along the celestial sphere is called:

Answers

Answer:

retrograde

Explanation:

here's a pic of a slug

Other Questions