Chemistry Middle School

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Answers

Answer 1

Answer:

Explanation:

Answer 2

The answer should be 2 I’m not sure tho

Related Questions

Which situation is an example of heat transfer by radiation?

Answers

Answer:

This type of transfer takes place in a forced-air furnace and in weather systems, for example. Heat transfer by radiation occurs when microwaves, infrared radiation, visible light, or another form of electromagnetic radiation is emitted or absorbed. An obvious example is the warming of the Earth by the Sun.

Answer:

the heat from the hotter to the colder region. Some common examples of Radiation are Ultraviolet light from the sun, heat from a stove burner, visible light from a candle, x-rays from an x-ray machine. All life on Earth depends on the transfer of energy from the Sun, and this energy is transferred to the Earth over empty space.

PLS HELP I WILL MARK BRAINLYEST BUT PLS JUST HELP MEEEEEEEEEEEEEE

Microwaves have a higher _____________ than radio waves. Different ______________ of microwaves provide different information to scientists. Most microwaves are used in ___________________________.

Answers

Answer:

Radio waves are electromagnetic waves within the frequencies 30KHz - 300GHz, and include microwaves. Microwaves are at the higher frequency end of the radio wave band and low frequency radio waves are at the lower frequency end.

Explanation:

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Answer:

hi kirishima it is me 0412919

Explanation:

i will give u brainly :D

Please make sure you are correct thank you!!

Answers

Answer:

Explanation:

Steam is a gas formed when liquid is heated.

It’s F bc when it is boiling the particles flow up and gas particles go up into the air

1. Select the best answer.
This type of heat transfer happens because of the uneven heating of liquids and gases.
convection
radiation
conduction

Answers

Answer:

I'm assuming it's convection.

Explanation:

When heat is transferred to liquids and gases, they carry that heat energy with them, further spreading it.

Answer:

I'm not 100% sure but I think it's Convection I'm not sure but I know Convection is heat flux through liquids and gases.

Explanation:

I'm sorry if it's wrong I tried

Which phrase describes a feature of igneous rocks that cool quickly during formation?

small crystals

coarse surfaces

found beneath Earth’s surface

exposed after erosion occurs

Answers

Answer:

Small crystals

Explanation:

The answer to your question is: small crystals.

Relative Dating Using Index Fossils
Index fossils can help geologists compare rock at locations .
• First, geologists give a relative age to a layer at one location.
• Index fossils help identify where may have occurred.
• Then that layer can be to other locations.

The answer choices is layers, distance, compared, unconformities

Answers

Index fossils can help geologists compare rock Layers at Distance locations.

Index fossils help identify where Unconformities may have occurred.

Then that layer can be Compared to other locations.

changes of state occur when there is a change in:

A. thermal energy
B. Electromagnetic
C. Chemical energy
D. Electrical energy

Answers

Answer:

I believe it is chemical energy

Explanation:

Sorry if I am wrong (rate one star if it is wrong)

Thermal energy: because the word used is ‘state’

El Nino affects the people of South America by...

]
A
causing long periods of drought and famine.

B
causing tornado and tsunamis.

C
causing heavy rainfall and flooding.

D
causing wild fires to burn out of control.

Answers

Answer: C.

Explanation: El Niño cause a rise in the sea surface temperature along with strong winds, this can cause flooding.

Oh yeah I have to get to her lol and

Help!!!
This is the last stage and I don't want to screw this up! :(

Answers

Product reactant reactant

During the time period than an El Nino is occurring, there is a buildup of cold water of the west coast of South America there is a buildup of warm water off the coast of South America the trade winds get stronger and cause a cooling of the surface water of the ocean Antarctica will have a dramatic increase in its temperature

Answers

Answer: there is a buildup of cold water of the west coast of South America.

Explanation:

Which is one way that minerals crystallize from materials dissolved in water?

from the air
from solutions that evaporate
from hot water solutions when water boils
from the soil

Answers

Answer:

B. from solutions that evaporate

Explanation:

I took the test

The minerals crystallize from materials dissolved in water from solutions that evaporate. Therefore, option B is correct.

What is mineral ?

A mineral or mineral species is, generally speaking, a solid chemical compound that naturally occurs in pure form and has a very well-defined chemical composition as well as a particular crystal structure.

Each crystal structure that makes up a chemical compound that exists naturally as a separate mineral species. As an illustration, silicon dioxide is a component of the same mineral species as quartz and stishovite.

They can be mined and have the potential to be exploited as a source of metal. Manganese, iron ore, and bauxite are examples of metallic minerals, which can be either ferrous or non-ferrous. While ferrous minerals do contain iron, non-ferrous minerals do not.

Thus, option B is correct.

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The Amazon River greatly impacts the environment of South America because...

A
it regularly dries up and forces the people to move to the cities to work for food.

B
it regularly floods forcing the people to move to the city for better housing.

C
it is the home of very few plants and animals and the people are not able to live off of the land.

D
it is the home of many different plants and animals that the people are able to use for food and medicine.

Answers

Iiiio oooo and I rejected the idea

D, it is the home of many different plants and animals that the people are able to use for food and medicine.

Explain why you agree or disagree with this statement
''Friction is a way to create electricity because it creates charged particles. ''

Answers

Answer:

Agree

Explanation:

The way it makes electicity is that it rubs together fast enother it makes the particles move.

Sorry I can't do better

The general formula for
reactant + reactant - product
---->

A. Decomposition Reaction
B. Synthesis Reaction

Answers

The second one, b synthesis reaction

B
Synthesis reaction

Hope it helps:)

What things should be done before demolition begins to keep workers, other people, and other properties safe if a building fell down?

Answers

Answer:

Occupational Safety and Health

Explanation:

For example there should be quick exits in an emergency which includes occupational safety. Plus, there should be medical supplies which explains the need of safety

Please help me I will give you the brain thing and extra points.
image below

Answers

Answer:

Explanation:

i think the answer is b :)

NEED ANSWER ASAP
How much energy is passed from organism to organism as it moves through an ecosystem (food chain)?

a
10%
b
50%
c
30%
d
100%

Answers

i think it is A (10 %)

a. 10% is the answer.

10 POINTS PLS HELP ME

Which of the following is NOT a characteristic of all living things?
a. lifespan
b. locomotion
c. production of wastes
d. energy requirement

Answers

Answer:

I think your answer would be b. locomotion

Explanation:

hope this helps and srry if wrong

When the solar system was very young, the sun was just being formed and planets had not yet been made. The solar system was mostly gas and dust. Which statement best explains how planets formed in the early solar system?
A.Planets formed from magnetism in space that interacted with light from the stars.
B.Planets formed from large asteroids that had broken apart.
C.Planets formed from molten metal in volcanic eruptions.
D.Planets formed from small amounts of debris that were attracted together because of gravity.

Answers

Answer:

Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. ... When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material. At the center, gravity pulled more and more material in.

Explanation:

When the solar system was very young, the sun was just being formed and planets had not yet been made. The solar system was mostly gas and dust.

in conclution its d

Planets formed from small amounts of debris that were attracted together because of gravity.

D. Planets formed from small amounts of debris that were attracted together because of gravity.

A dense cloud of interstellar gas and dust formed our solar system roughly a billion years ago. A solar nebula—a whirling, swirling disk of material—was produced when this dust cloud collapsed. Gravity drew more and more material into the center. The sun was still forming and planets had not yet been created when the solar system was very young. The solar system consisted primarily of gas and dust.

D. Planets formed from small amounts of debris that were attracted together because of gravity.

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help with science----?????///

1. What are the different ways tectonic plates move in relation to each other?

2. What landforms could be the result of converging plates? name a location where this occurs.

3. What landforms could be the result of diverging plates? Name a location where this occurs.

4. What major event could occur as the result of transforming plates? Name a location where this can occur.

5. if crust is constantly created at divergent boundaries, why isn't Earth getting larger?

Answers

Answer + Explanation:

1. The different ways tectonic plates move in relation to each other are:

convergent (where plates move into one another)

divergent (where plates move apart)

transform (where plates move sideways in relation to each other)

2. Convergent plate boundaries can result in:

earthquakes, volcanoes, and the formation of mountains.

The Himalaya Mountains are the result of convergent plate boundaries.

3. Landforms that are a result of divergent boundaries are rift valleys and mid-oceanic ridges.

Locations where this occurs are: Mid-Atlantic Ridge, Red Sea Rift, Baikal Rift Zone

, East African Rift, East Pacific Rise, Gakkel Ridge, Galapagos Rise, and Explorer Ridge.

4. Transforming plate boundaries results in shallow earthquakes, large lateral displacement of rock, and a broad zone of crustal deformation.

A location where this occurs is: San Andreas Fault in western California

sorry that's all I can help you with today :/ if I have more time I'll answer the other questions!! If I helped you please don't forget to mark me brainliest!!

- sophi

Please help me I will give you the brain thing and extra points.
Two dogs are pulling a disk, but the disk is not moving. The disk does not move because the forces are (select one: unbalanced, balanced, in motion, at rest.)

Answers

Balanced is the answer

Answer:

unbalanced

Explanation:

because two dogs are pulling it so it's not going to be in place?

Which type of Symbiotic Relationship is described below?

When two organisms interact with one another and one is benefited, and one isn't benefited or harmed.

a
Mutualism
b
Commensalism
c
Parasitism

Answers

ITS B IHAVE TO TYPE MORE

Which rock is an example of a clastic sedimentary rock?

shale
iron ore
rock salt
limestone

Answers

Answer:

the correct answer has to be shale

Explanation:

hope it helps

I think the answer is shale

Out of the 3 of these
Protons Neutron and electrons witch of these are responsible for a charge that can be transformed from one object to another.

Answers

electrons can be transformed from on object to another , (can you mark me brainlyest)

How does hot object produce heat?

The hot objects create hot air producing heat.
Movement of the hot object creates heat.
Molecules in the hot objects create friction to produce heat energy.
Heat is absorbed the object from the air around it.

Answers

The object can creat heat from energy and friction but in some cases that’s not the case.

When objects are heated, the movement between the particles of the matter increases. As a result, particles move and vibrate more faster. When this happens, the heat can be transferred by vibrations between particles. Hope this is correct. If yes, please give me the brainliest

PLEASEEEEE HELP PLEASEEEEEEE

Answers

I don’t really know to be honest

I can’t really see the designs clearly .

but other than that have a good day !

Which type of Symbiotic Relationship is being described?

A human gets biten by a mosquito. The mosquito gets blood to drink, and the human gets an itchy bite.

a
Mutualism
b
Commensalism
c
Parasitism

Answers

Answer:

C. Parasitism

Explanation:

Mutualism means both organisms benefit. An example of this is a bee and flower.

Commensalism means one organism benefits and the other is unaffected. An example of this is a whale and barnacles.

Parasitism means one organism benefits, and the other is harmed. An example of this other than mosquito and human is a dog and fleas.

Hope this helps!!

Answer : C
Explanation: they drink blood off of their host and the process causes harm to the host so it’s like a paresite.

Which is NOT a reason why organisms communicate with one another?

a
To find a mate
b
For protection
c
To find housing
d
To acquire food

Answers

Answer:

C. to find housing.

Explanation:

i hope this helps :)

That would be c to find housing

Which best describes a magnetic field?

a push or pull in the region around a magnet.

either end of a magnet

a switch that controls a magnet

any materials that is attracted to a magnet

Answers

Answer:

I think its 3

Explanation:

give me brainly please

Answer:

a push or pull in the region around a magnet .

Sound, earthquakes, and waves in water are mechanical waves because they require a physical ______________________ to transport energy.

Disturbance

Electromagnetic field

Location

Medium

Answers

Answer is disturbance

Sound, waves are all propagation of energy. Transport of this energy require a physical medium. Thus option D is correct.

What is mechanical waves?

Mechanical waves are a form of energy transfer by oscillation of matter and they require a medium to propagate. Sound wave is a longitudinal wave which is only passing through a medium of air. Air disturbance causes these sound waves.

Longitudinal waves are those where the direction of oscillation of matter is along the direction of propagation. Electromagnetic waves does not require a medium to travel.

Waves in water originates from the pressure difference in water earthquakes is caused by seismic waves which are transverse waves, where the oscillation of matter is perpendicular to the direction of propagation.

Hence, sound, earthquakes, and waves in water are mechanical waves because they require a physical medium.

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