Why do physical properties change?

Answers

Answer 1

Answer:

Physical change takes place without any changes in molecular composition.

Answer 2

Physical change takes place without any changes in a molecular composition.,

Related Questions

Which action could cause a sample of liquid to boil?

A. Decreasing the temperature of the liquid

B. Decreasing the sample size of the liquid

C. Decreasing the volume of the liquid

O

D. Decreasing the pressure on the liquid

Answers

Answer:

D. Decreasing the pressure on the liquid.

Explanation:

I took the test

help me with this I only have one more
1156 g/L
= ________ kg/mL

Answers

The Answer is 0.001156.

To convert g/L to kg/mL, we need to divide the value of g/L by 1000. Therefore:
1156 g/L = 1.156 kg/L
Since 1 L is equal to 1000 mL, we can convert kg/L to kg/mL by dividing by 1000:
1.156 kg/L = 1.156/1000 kg/mL
1.156/1000 kg/mL = 0.001156 kg/mL
Therefore, 1156 g/L is equal to 0.001156 kg/mL.

Please help!!
What do scientists do when they want to name a new organism?
all of the above
They see how the organism is similar to other organisms.
They see if the organism has the characteristics of an animal or plant.
They look at what makes the organism unique.

Answers

Answer:

All of the above

Explanation:

I believe all three are true. They see how the organism is similar to other organisms. They see if the organism has the characteristics of an animal or plant. They look at what makes the organism unique.

It’s should be all of the above I believe

What are all the breeds of dogs and how many breeds of dogs are there?

Answers

Answer:

In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.

Explanation:

There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed

There are currently more than 340 different breeds of dogs recognised throughout the world.

Which description properly describes the plant structures involved in photosynthesis?

A. Stomata take in water, sunlight, and carbon dioxide and release oxygen.

B. Stomata take in carbon dioxide and release oxygen.

C. Xylem takes in water, sunlight, and carbon dioxide and releases oxygen.

D. Phloem transports water, stomata take in carbon dioxide, and chlorophyll absorbs sunlight.

Answers

Answer: The correct answer is D.

Hope this helps!

Answer:

the answer is D

Minerals must have atoms that are tightly packed together and cannot move freely. Which part of the definition of a mineral does this describe?(1 point)

Answers

Answer: soild

Explanation:

Minerals must have atoms that are tightly packed together and cannot move freely. Which part of the definition

Answer: Solid state of matter

Explanation: Minerals have atoms that are tightly packed together and cannot move freely. This is a characteristic feature of solid matter where the atoms are tightly packed and they cannot move freely, has less space between them. Thus are rigid. The solid state is the most dense state of matter.

To learn more about Solid state, click the given link below

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Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)

Answers

Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome

Explanation:

rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.

Which surface is most likely to create an echo?
a room with hard, flat walls
a room with hard, bumpy walls
a room covered in soft, wavy curtains
a room padded with soft, flat cushions

Answers

the answer is A. if a sound meets a soft surface like C or D they will be absorbed and wouldn’t bounce back. the answer would have to be either A or B. But the answer is A because the wave remains more intact when it hits a smooth surface.

A room with hard, flat walls surface is most likely to create an echo. Hence option A is correct.

What is echo?

Echo is defined as a recurrence of sound caused by sound waves being reflected off of a wall, mountain, or other obstruction. Bats, dolphins, and fishermen all use echoes to find objects or obstructions. To find an obstruction, they are also utilized in SONAR (Sound navigation and ranging) and RADAR (Radio detection and ranging).

Buildings made of glass, metal, and concrete, the brick and metal interior of a warehouse, marble floors and buildings, or, if the room is designed in such a way that the acoustics produce an echo, plastered and painted interior walls, are examples of man-made materials that are smooth enough to produce an echo.

Thus, a room with hard, flat walls surface is most likely to create an echo. Hence option A is correct.

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Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves?
A.
Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space.
B.
Electromagnetic waves transfer energy, whereas mechanical waves only transfer matter.
C.
Mechanical waves transfer energy, whereas electromagnetic waves only transfer matter.
D.
Electromagnetic waves require a medium to travel through, whereas mechanical waves can travel through empty space.

Answers

Answer:

Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves?:- Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space.

is the correct

pls mark me as brainliest pls

Answer:

Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space.

Explanation:

Edge

Tectonic activity causes potential energy to build up in the crust. An earthquake occurs when this potential energy is released within the crust. Which statement BEST describes what happens when the energy is released?
Select one:

a. It generates seismic waves that spread out in all directions around Earth.

b. It generates heat waves that affect climate changes around Earth.

c. It generates changes in the magnetic field of Earth.

d. It generates changes in the orbiting speed of Earth.

Answers

Answer:

c. It generates changes in the magnetic field of Earth.

Explanation:

please mark this answer as brainlest

Answer:

Explanation:

Describe how each of the following processes helps an organism maintain homeostasis.

Photosynthesis

Cell Division

Removing waste

Cellular Respiration

Answers

It helps by getting the plant food and water

By getting the plants food and water

How does Earth’s rotation affect the global pattern of prevailing winds? Explain your reasoning using evidence

Answers

Answer:the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths.

Explanation:

answer: Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere

During digestion, what happens in the stomach?

A. All food molecules are broken down into smaller molecules by chemical reactions.

B. Some types of food molecules are broken down into smaller molecules by chemical reactions.

C. Water in the food passes into the blood and travels to other organs where it is used.

D. Food passes into the blood and travels to other organs where it is used in various reactions.

Answers

Answer:

Explanation:

Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.

Answer:

Explanation:

Based on this simulation, how does the greenhouse keep plants warm? Use "infrared photons" in your explanation.

(Will give brainlest.)

Answers

Question: Next, click the Glass Layers tab in the black bar at the bottom of the simulation. Use the arrow in the Options field on the right to add one or more glass panes. This simulation shows how different photons would react to a layer of glass surrounding Earth, much like an actual greenhouse. How do the sunlight photons and infrared photons react differently to the glass layer(s)?

Edmentum answer: The visible light photons pass through the glass unaffected. However, the infrared photons that Earth reflects often change direction or are absorbed back into Earth’s surface when they interact with the glass.

the greenhouse keep plants warm because allow the heat to be retained, the gases provide the heating of the Earth.

How does the greenhouse effect work for plants?

The operation of greenhouses is very simple: the sun's rays pass through the roof and heat the ground, and when the heat rises, it is not dissipated, remaining in the environment because it is trapped by the roof.

The denomination of greenhouse or shelter is used when the objective is to heat the environment. This technique is important as some plants do better in warmer temperatures. Cold can cause poor seed germination and poor nutrient absorption.

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If there was no sunlight, would there be more or less carbon in biotic matter?

Answers

There would be less carbon.

their would be less carbon dioxide.

It's due in 9 mins.. who ever waste my coins will get reported

What happens to air when it is heated by the sun?

water vapor changes to liquid
it rains
it descends
it rises

Answers

Answer:

D. It rises

Explanation:

Heat energy is released when the sun comes in to contact with the air. It then gets pushed into the atmosphere which creates a bubble of air that is warmer, causing that bubble to rise.

Who thinks Jaden hossler is my soulmate.
I've had dreams that we were dating not just once but multiple times.
I've taken a soulmate quiz and it's said that i will meet my soulmate in california and that's were Jaden Hossler lives.
I've never met him in real life.
I'm only 14 years old.

Answers

Yes I think he is what’s ur snap?

Answer:

sorry this is not a true question so for that you are just wasteing mine and others times

Explanation:

sorry that i could not help how you have a good night

What evidence do scientists have to support the big bang theory as the origin of the universe?

Answers

Explanation:

Two major scientific discoveries provide strong support for the Big Bang theory: • Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.

Answer:

Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.

Explanation:

What are the first few items you should evaluate when reading a graph”?

Answers

Answer:

punctuation, and if it makes sense

title, axes, increments, labels, and scale

Percy finds a rock in his backyard. It looks like several pebbles cemented together. Percy has found _____.

Answers

Answer:

Percy has found conglomerate.

Explanation:

Conglomerate is a sedimentary rock,formed from round fragments embedded in a cementing material such as silica

Answer:

Sedimentary rock

Explanation:

HMH Daily Demo Lab: Water Magic
Electric Charge (guided inquiry)
Purpose: To show how matter becomes charged by induction
Materials: comb, sink with working faucet

Predict: Predict what you think will happen to the charges of the comb and water if the comb comes in contact with the water. Record your hypothesis before following the directions below to carry out the lab experiment. The charges would attract. How and why is what I don’t know.
Directions:
1. Turn on a faucet just enough to allow a thin stream of water to flow.
2. Have a student volunteer-run a comb through his/ her hair a few times.
3. Observe. Tell the student to hold the comb near, but not touching, the stream of water.
4. Answer all questions below in complete sentences, using the R.A.C.E. strategy.
Ask and record your findings: What do you observe? Describe. I observed the stream of water bend toward the comb. I gave the comb electric charge by passing a comb through my sister’s hair and that allowed the comb to bend the stream of water.

Ask and record your findings: What does this indicate (show)? Explain. I

Observe:
1. To test students’ predictions, have the student volunteer pass the comb through the water.
2. Then have them move the comb so that it is near but not touching the water.
Ask and record your findings: What do you observe? Describe. WILL GIVE BRAINLIEST

Answers

3 I’m pretty sure this is right

Oceans can store large amounts of thermal energy. How does this affect climates?

Answers

Answer: It stabilizes the Earth's climate system

Explanation:

This tremendous ability to store and release heat over long periods of time gives the ocean a central role in stabilizing Earth's climate system.

Calculate: What is the population density of the flamingos in the pond below?

Group of answer choices

20 flamingos per square meter

0.4 flamingos per square meter

2.5 flamingos per square meter

20 flamingos per 6 square meters

Answers

Answer: Not known

Explanation: There is not enough details to solve this question.

I really don’t know

Who was settling in Minnesota after the Civil War and why?

Answers

I think it’s the British

please only answer if you are 100% sure it's a major grade.
.
35 POINTS

Answers

The answer is B. Changes in air pressure and temperature. The changes in air temperature are often influenced by the increase in altitude, where the increase in altitude leads to a decrease in temperature, the same is true for the opposite!

Answer:

Explanation:

since the farther you go out in the atmosphere the temperature decrease and the air pressure drops

How do you think heat moves through Earth's atmosphere?

Answers

Answer:

Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface. Conduction directly affects air temperature only a few centimeters into the atmosphere.

Explanation:

Which of the following is NOT a cost of using fossil fuels?

Answers

Answer: Burning fossil fuels decreases CO2 in the atmosphere

Explanation: Burning fossil fuel actually increases the amount of CO2 in the atmosphere, it doesn't decrease it.

Hope this helps!

It will be B
Burning fossil fuels decreases co2 in the atmosphere

Can you help me with this assignment
5th-grade science
pls give the right answers and if you don't know the answers pls pls pls do not answer the question

Answers

Convex lenses can form magnified or minified inverted real images, or magnified right-side-up virtual images. Concave lenses can only produce minified, right-side-up virtual images.

When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.

Answers

Answer:

Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.

Table B: Calculation of Kinetic Energy (KE)

Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500

To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.

For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2

Perform similar calculations for the other velocities and record the results in Table B.

Answer:

Explanation:mass of the bottle in each case is M = 0.250 kg

now as per given speeds we can use the formula of kinetic energy to find it

1) when speed is 2 m/s