can copper block be separated? why or why not?
Is this considered a pure substance or a mixture?

Answers

Answer 1
No, a copper block cannot be separated because it is made of only one type of matter. It is considered a pure substance because it is only made of one type of matter, and mixtures are made up of two or more substances.
Answer 2

No, a copper block cannot be separated.

A copper block cannot be separated because it is made up of only copper atoms which are only one type of molecule. It is a tightly bound structure of copper atoms.

A pure substance means a substance that is free from any kind of mixture and contains only one kind of particle are pure substances. A mixture is composed of one or more pure substances in different compositions. So a copper block is a pure substance and not a mixture.

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Related Questions

Please help me out with this question if you help me I will give you the brain thing and extra points. 1/9 image below.

Answers

D. bowling ball is the answer

Why is DNA important?

Answers

Answer:

DNA is pivotal to our growth, reproduction, and health. It contains the instructions necessary for your cells to produce proteins that affect many different processes and functions in your body. Because DNA is so important, damage or mutations can sometimes contribute to the development of disease

hσpє ít αgαín hєlpѕ uhplѕ mαrk mє αѕ вrαínlíєѕt
DNA is pivotal to our growth, reproduction, and health. It contains the instructions necessary for your cells to produce proteins that affect many different processes and functions in your body.

Why does a carrot appear to be orange under white light?

Answers

Answer:

yesh it is many many apper indiology from whight ho

Use the following scenario to answer the question.

Pete hangs a weight from a spring and then releases it. He watches as the spring oscillates back and forth. Pete says that this will repeat forever.

Which of the following states if Pete is right or wrong and explains the reasoning correctly?

( help please! )

A. Pete is correct because simple harmonic motion is occurring, and this type of motion should continue on forever.


B. Pete is not correct because friction will cause the spring to fall and rise with a shorter distance during each oscillation. The spring will eventually come to rest entirely.


C. Pete is not correct because eventually the weight will fall off the spring, causing the motion to cease.


D. Pete is correct because friction will cause the spring to fall and rise with a greater distance during each oscillation. It will never stop completely.

Answers

Answer:

Option: B

Explanation:

The correct answer is B. Pete is not correct because friction will cause the spring to fall and rise with a shorter distance during each oscillation. The spring will eventually come to rest entirely.

The motion of the spring is affected by friction, which gradually dissipates its energy. As a result, the amplitude of the oscillations decreases over time until the spring eventually comes to a stop. This phenomenon is known as damping, and it causes the motion to cease rather than continue indefinitely.[tex][/tex]

Two students mixed up a new salt solution and put in blue and red food coloring to make it purple. They weighed 35 mL of the solution and found its mass to be 41 g. Where would the purple layer form if it were used with the four solutions above? Show your math.

Answer:

The density of the purple solution is _________________________.

The purple solution would form a layer __________________________.

Answers

Answer:

1435

Explanation:

i did the math and this is what i got i think its right but i dont know

Which water crisis is the most critical to resolve?

Answers

Option (A) Circulates existing water on Earth

Final answer:

The most critical water crisis to resolve is water scarcity, which affects approximately 2.2 billion people worldwide.

Explanation:

Water crises are a pressing global issue, and identifying the most critical one to resolve requires considering various factors. While all water crises are significant, water scarcity stands out as one of the most critical challenges to address.

Water scarcity occurs when the demand for water exceeds the available supply, leading to water stress and shortages. Approximately 2.2 billion people worldwide lack access to safe drinking water, and this number is expected to increase due to population growth, climate change, and inefficient water management.

Resolving water scarcity requires a multi-faceted approach. It involves implementing sustainable water management practices, such as water conservation, rainwater harvesting, and efficient irrigation techniques. Additionally, investing in infrastructure development, such as building reservoirs and improving water distribution systems, can help alleviate water scarcity.

By addressing water scarcity, we can improve access to safe and clean water, enhance food security, and promote sustainable development. It is crucial for governments, organizations, and individuals to prioritize resolving water scarcity to ensure a better future for all.

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#SPJ14

In which environment would primary succession take place? Select 2 options.

an abandoned field
a cooling lava flow
an area of bare rock under a glacier
an unused farm
a deserted mine

Answers

Answer:

a cooling lava flow

a deserted mine

Explanation:

Answer:

a cooling lava flow

a deserted mine

Explanation:

bc im right oim to smartz

This thin layer surrounds all cells and controls what materials can enter or exit.
A) chloroplast
B) nucleus
C) cytoplasm
D) cell membrane
E) mitochondria
F)Golgi body
H) ribosomes
I) vacuoles
J)cell wall
K) endoplasmic reticulum
L) lysosome

Answers

Answer:

Explanation:

D) Cell memberane

I think it’s D) cell membrane
Hope this helps
Have a good day

does fertilizer A grow bigger tomatoes

Answers

Answer:

I think

Explanation:

I never use it i usally grow my tomatoes

Yes fertilizer grows bigger tomatoes

Why do tides have a regular cycle of 12 hours even though the Moon completes one revolution of the Earth every 29.5 days?

(HELP PLEASE!!)

A. The Earth is rotating and completes a rotation every 24 hours. As it rotates, its distance from the Moon changes every 12 hours. This causes the cycle of high and low tide.


B. The Earth is rotating and completes a rotation every 24 hours. The moon also rotates as it resolves around Earth, which causes the cycle of high and low tide.


C. The Earth is rotating and completes a rotation every 24 hours. This means that the side of the Earth far from the Moon will be near the Moon 12 hours later, restarting the cycle of high and low tide.


D. The Earth is rotating and completes a rotation every 24 hours. This causes day and night to occur. High tide only occurs during the evening, and low tide only occurs during the day.

Answers

Answer:

D

Explanation:

The Earth is rotating and completes a rotation every 24 hours. This causes day and night to occur. High tide only occurs during the evening, and low tide only occurs during the day.

A. The Earth is rotating and completes a rotation every 24 hours. As it rotates, its distance from the Moon changes every 12 hours. This causes the cycle of high and low tide.

The regular cycle of tides is primarily caused by the gravitational interaction between the Earth and the Moon. As the Earth rotates on its axis every 24 hours, different parts of the Earth's surface come into closer proximity to the Moon. This changing distance between the Earth and the Moon results in the cycle of high and low tides occurring approximately every 12 hours.

The gravitational force exerted by the Moon on the Earth's oceans causes a tidal bulge to form on the side of the Earth closest to the Moon, resulting in high tide. Simultaneously, there is another high tide on the side of the Earth opposite the Moon due to the centrifugal force generated by the Earth-Moon system. These tidal bulges create the cycle of high and low tides as the Earth rotates.

It's important to note that while the Moon completes one revolution around the Earth every 29.5 days, the regular cycle of tides is primarily influenced by the Earth's rotation and the changing distance between the Earth and the Moon every 12 hours.

A student tests the pitch of different-sized rubber bands by stretching them around a box and then plucking them. What pitch does a thick rubber band have, and why?


A thick rubber band vibrates fast, so it produces a low pitch sound.


A thick rubber band vibrates fast, so it produces a high pitch sound


A thick rubber band vibrates slowly, so it produces a low pitch sound.


A thick rubber band vibrates slowly, so it produces a high pitch sound.

Answers

Answer:

your answer will be C

Explanation:

remember low souunds carry sound waves farther than high pithed sounds.

Answer:d or I

Explanation: remember they have sound waves so if it’s slow, then is a high pitch

(I know you don’t understand but I think it’s the right answer)

Can I please get help with this?

Answers

Answer:

help with what its blank

Explanation:

BRAINIEST!
What are the structures labeled Z?

lysosomes
ribosomes
vacuoles
organelles

Answers

Answer:

Its B

Explanation:

PLSSSSSSSS HELP MEEEEEEEEEEEEEE

Answers

Answer: The answer to your question is B,C,D.

Answer: i think A, B, D?

Explanation:

You want to push a table 5 feet across the floor. How would a decrease in the resistance caused by friction change the amount of force needed to move an object?
Write in only 1-2 sentences.

help please!

Answers

Answer: A decrease in friction will allow you to move the table with less force as friction would waste some the energy provided.

Answer: By reducing the friction, either by using lubricants, reducing the roughness of the surfaces, or other means, the resistance to motion is decreased.

Explanation:

A decrease in the resistance caused by friction would make it easier to move an object, which means less force would be needed to push the table across the floor. Friction is a force that opposes the motion between two surfaces in contact, and it can make it harder to move objects. By reducing the friction, either by using lubricants, reducing the roughness of the surfaces, or other means, the resistance to motion is decreased.

According to Newton's laws of motion, the force required to move an object is directly proportional to the resistance caused by friction. Therefore, when the resistance decreases, the force needed to move the object decreases as well. With less friction, it would be easier to overcome the resistance and push the table across the floor, requiring less force to achieve the desired movement.

Jenna notices that the speed of the wind has increased throughout the day. What is causing the faster wind?

There has been no precipitation.
The difference in air pressure has decreased.
The difference in air pressure has increased.
The direction of the wind has changed to the south.

Answers

The speed of the wind has increased throughout the day as there has been no precipitation.

What is precipitation?

Precipitation is a process in which vapor of liquid changes into small droplets.

In the day time temperature of the atmosphere is high as compare to the night, so rate of precipitation is low at the day time due to which speed of the wind has increased as compare to the night time.

Hence, option (a) is correct i.e. there is no precipitation.

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Answer: C

Explanation:

4P + 5O2 → P4O10 How many phosphorus (P) atoms are on each side of the equation? How many oxygen atoms are on each side?

Answers

Answer:

4 p and 10 O on both sides

Explanation:

on the reactant side you can see easily  that there are 4 P. With the oxygen on the reactant side you take the coefficient (5) times the subscript (2) which gives a total of 10 Oxygens.

On the product side there is a subscript of 4 next to the p, and a subscript of 10 next to the O

They are equal on both sides so you are done.

Where does most fresh water exist?

Answers

Answer:

aquifers, ice caps, and glaciers I think

The answer:

(C) aquifers, ice caps and glaciers

Help asap plz thank you!

All of the elephants living in a wildlife preserve would be considered a
A) community.
B) group.
C) individual.
D) population.

Answers

Answer:

D) Population

Explanation:

The answer is D, population

help me pls T-T (Question down below0

Answers

automnal equinox - september 22

vernal equinox - march 21

longest day in Northern Hemisphere - june 21

longest day in Southern Hemisphere - december 22

Explanation:

antumnal equinox - march 21

vernal eqinox - june 21

longest day in northern hemisphere - September 22

longest day in southern hemisphere - december 22

HELP IM DESPERATE CONVECTION 3 QUESTIONS ILL GIVE BRANLIEST

Answers

Answer: 1

Explanation: From point A the fire is making "A" hot so pint B will get hot I think..... correct me if I'm wrong but I had this before and got an A so I hope it helps you out a lil bit.    (Brainiest??)

From point A the heat is transferring up towards point B. From point B to point C the heat starts to generate because there is a source of heat because of point A and B. From point C to A the heat of C starts because there is already full heat in the cup.

How can we engage the public so they are motivated to help solve the water crisis?

Answers

Answer:

Educating and spreading awareness.

educating and spreading awareness to the people who are willing to help

Which best describes the role of the water cycle? HELPPPP ASPPPPP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Circulates existing water on Earth.

The water cycle, also known as the hydrological cycle, refers to the continuous movement of water on, above, and below the Earth's surface. It involves processes such as evaporation,

condensation, precipitation, and runoff. The water cycle is responsible for circulating existing water on Earth, redistributing it from one place to another, and maintaining a constant supply of water in different forms (liquid, vapor, and ice) across various reservoirs like oceans, lakes, rivers, and the atmosphere. It plays a crucial role in balancing the Earth's water resources and supporting life on our planet.

Therefore the role of water cycle is best described by

Circulates existing water on Earth.

Answer:circulates water thats already on earth

Explanation:

Equal but opposite forces are said to result in a(n)_____force of zero

Answers

Answer:

estan ingles como se hace para poner en español

The answer for this question is Net

can yall help me with this (OwO)

Answers

For bob pictures yes I will baby yurrr mehhhhhjdjsjsjdjd hdkosso

Answer:

try the order 6, 1, 5, 2, 3, 4

Explanation:

uwu

a particular environment is becoming warmer over time due to rises in Carbon Dioxide produced by humans. How would the rabbit population be impacted by enoviormental change?

Answers

If the environment is warmer then the fur will shed

I think the answer is b

What are the four bases in DNA and which ones pair together?

Answers

Answer:

adenine, thymine, cytosine, and guanine

Explanation:

cytosine pairs with guanine

and adenine pairs with thymine

✨Please help!! ✨. CONVECTION

Answers

Answer:

heat energy

Explanation:

Which of the following does NOT play a role in South Florida’s climate?


A. latitude
B. beach erosion
C. ocean currents
D. global wind patterns

Answers

Answer:

B

Explanation:

Latitude has impact on radiation, ocean currents partially determine temperature, and wind patterns influence temps. Elimination gives B.

what are examples of structures that match each hierarchical level?
If you can please tell me before 2:00 pm

Answers

Answer:

All living organisms are made up of one or more cells

All living organisms reproduce by passing on specific genetic information to future generations

Only living organisms are capable of evolving

Only living organisms require an input of energy to drive cellular activities

All living organisms grow by increasing cell size or cell number.

Explanation:

All living organisms are made up out of one or more cells
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