Chemistry Middle School

Which change of state is shown in the model?
A. Condensation
B. Boiling
C. Sublimination
D. Freezing​

Which Change Of State Is Shown In The Model?A. CondensationB. BoilingC. SubliminationD. Freezing

Answers

Answer 1

Answer:

D

Explanation:

Answer 2
D freezing
All the molecules are tight together

Related Questions

Does the Red Sea have high or low viscosity?

Answers

I believe the Red Sea has high viscosity

help me please i need this aaaaaaaaa <3

Answers

Can someone help me out too? , on my question?

Answer:

1.magma forms beneath the plates and rises up through the cracks

2. the tectonic plates move apart from one another

3. lava flows onto Earth’s surface

4. lava cools and hardens to form igneous rock

Explanation:

Nitrogen gas (N2) and hydrogen gas (H2) react to produce ammonia (NH3) according to this balanced equation. N2 (8) + 3 H2(g) → 2 NH3 (8) How many liters of H2, measured at standard temperature and pressure, are required to react completely with 11.2 L of N2? A. 16.8L B. 22.4L OC. 33.6L D. 44.8 L​

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Answer:

                     

Explanation:

Answer:

                                                                   

Explanation:

I need help ASAP with science with number 2

Answers

cells —> tissue —> organs —> organ system —> organisms hope this helps :)

Answer:

Cells, tissues, organs, organ system, organism.

If a light bulb goes out on a PARALLEL CIRCUIT all of the bulbs will go out.

a. True

b. False

Answers

Answer:this answer is true your welcome

Answer:

False

Explanation:

True or false Cellular Respiration produces Glucose, Water, and ATP?

Answers

the answer is true !!
It’s true

Hope it helps :)

Hammerhead Shark Process of Sexual Reproduction

Answers

Answer:

The hammerhead sharks exhibit a viviparous mode of reproduction with females giving birth to live young. Like other sharks, fertilization is internal, with the male transferring sperm to the female through one of two intromittent organs called claspers. The developing embryos are at first sustained by a yolk sac.

Explanation: hope this helped

20 points hurry
Complete the following analogy:

______Cyanocitta cristata as blue bird:Sialia sialis

A swallow
B blue jay
C cardinal
D parakeet

Answers

Answer:

Blue Jay is the correct answer.

Explanation:

I got blue jay B...........

What reacts in a chemical reaction to form a new substance with different products

Answers

Answer:

Atoms

Explanation:

By a chemical reaction the process of one or more substances like reactants . Which is converted to on different or one substances. Therefore the products of Substances are either compounds or chemical compounds and chemical reaction can rearrange the constitution atoms reactants to create different substances as products.

How does Gregor Mendel's work with pea plants affect human life today? OA A. People continue to cross pea plants to fix Mendel's many experimental mistakes. B. People use Mendel's knowledge of DNA and chromosomes to create new species. C. People use the strains of pea plants that Mendel developed as a major food source. D. People continue to selectively breed plants and animals to produce predictable results.​

Answers

Answer:

write the unit of area and density in SI System

1. define what an ion is (make sure electrons are part of the definition)

2. explain (in terms of electrons) how the sodium is becoming a positive ion

3. explain (in terms of electrons) how the chlorine is becoming an a negative ion

4. Explain why the difference in charges causes them to become attracted and bond to make NaCl, also known as table salt.

Answers

Answer:

valence shell, has eight electrons in it, so the atom becomes positively charged. ... in energies and is useful in explaining why atoms form the ions that they do. ... which we write as Na 2O. The need for the number of electrons lost

Explanation:

1. An ion of an atom is one in which the number of protons and electrons is not the same. If there are more protons than electrons, an atomic ion has a positive charge and is called a cation. If there are more electrons than protons, the ion has a negative charge and is called an anion.

2. Such bonds are created when the outermost electrons of one atom (such as sodium) are transferred permanently to another atom (such as chlorine). The atom that has lost an electron becomes a positively charged ion (called a cation), while the atom that picks up the extra electron becomes a negatively charged ion (called an anion).

3. For a chlorine atom to become a chloride ion, it must gain an electron. The chloride ion has a negative charge and is written as Cl-. Chlorine gains an electron because it has seven valence electrons, and to be a full octet, it gains an electron. A chloride ion is called an anion. Its electron configuration is 1s2 2s2 2p6 3s2 3p6.

4.Ionic bonds are also formed when there is a large electronegativity difference between two atoms. This difference causes an unequal sharing of electrons such that one atom completely loses one or more electrons and the other atom gains one or more electrons, such as in the creation of an ionic bond between a metal atom (sodium) and a nonmetal

hope this helps

have a good day

:)

What stage of its life cycle is the Sun in? What will it likely form when it runs out of fuel? (PLEASE DON’T GET AN ANSWER FROM ANY WEBSITE)

Answers

Answer:   the main sequence

Explanation: it’s experiencing its main stage of life

How can you tell that a precipitate has formed?

Answers

Answer:

if a solid appears when mixing two liquids

Explanation:

i remember this question :D

^basically what they said

all i got to say is wow and answer this for me ;)
what would you do/not do for a million dollars?

Answers

Answer:

I would do anything that follows my own morals for a million dollars.

Explanation:

For example, I would not kill someone for a million dollars, I couldn't live with myself if I did, but if you told me to steal a hot dog for a million dollars that would be fine since I could always just pay it back later.

Answer:

I would live alone on an island for 3 years I guess

Explanation:

To decrease the rate of reaction you would ... *
1. increase the temperature
2. add a catalyst
3. increase the pressure
4. decrease the concentration of a reactant

ASAP!!!!!!!!

Answers

Answer: it’s number 2 add a catalyst

Hopefully this helped :)
Decrease the concentration of a reactant

Balance the follwing equation:
BLANK C+ BLANK H(2) -> BLANK CH(4)

Everything in partnethesis are subscripts.

Thanks!

Answers

Answer:

- in order to balance the chemical equation, you need to make sure the number of atoms of each element on the reactant side is equal to the number of atoms of each element on the product side.

equation: (given)

__ C + __ H2 --> __ CH4

C = 1                |    C = 1

H = 2               |    H = 4

so, here we can see that the number of hydrogen (H) atoms are NOT equal, which means we have to put a number infront of the compounds inorder to balance it. this means putting a coefficient.

equation: (balanced)

C + 2H2 + CH4

- the only thing added was the 2.

-- let me know if you have any questions about this.

Help fill in the blanks this is for 8th-grade science btw.

Answers

Answer:

i know that 10 x is .22300

I know that 10x is .22300

Can someone tell me what an isotope is in your own words, please don't copy and paste

Answers

An isotope is an atom with the same atomic number but different mass number

the same element ( same amount of protons ) just different amounts of neutrons making the mass different in each atom

Which type of organism is ale to cause an infection or contagious disease?

Question options:

A. animal

B. rose

C. plant

D. bacteria

Answers

I think that the answer is A



the correct answer is bacteria

Different species of animals in a community would most likely be similar in O A. physical structure. O B. size. O c. abiotic requirements. O d. number of offspring produced. O E. genetic make-up.​

Answers

A physical structure

Different species of animals in a community would most likely be similar in physical structure, basic nature of an ecosystem. thus option A is correct.

what is ecosystem ?

An ecosystem can be defined as a community of living organisms  concurrence with non-living components, interacting with each other in an environment.

The structure of an ecosystem composed of both biotic and abiotic components which include the distribution of energy in our environment, climatic conditions prevailing in that specific environment.

The structure of an ecosystem  can be divided into two components such as Biotic Components and Abiotic Components

both biotic and abiotic components are interrelated with each other in an ecosystem,. it is an open system where the flow of energy and components occur throughout the boundaries.

The functions of the ecosystem include regulates the essential ecological processes, responsible for the cycling of nutrients between biotic and abiotic components, maintains a balance among the various trophic levels in the ecosystem.

For more details regarding ecosystem, visit

brainly.com/question/1061425

#SPJ6

Is the viscosity of the Philippians high or low viscosity?

Answers

Answer:

high

Explanations

not sure what it about but lava is high

help me pls!

Temperature is an important factor that determines if matter is a solid or a liquid

True or false?

Answers

Answer:

true

as temperatures rise, the atoms become more active; as per the opposite (meaning as temperatures drop, the atoms start to settle down) liquid is the more medium state (because the temperature rises enough for the solid to become a a liquid but not too much that the liquid evaporates and turns into a gas) have a great day/night

True. Your welcome...

What are the outermost electrons of an atom

Answers

Answer:Valence Shell

Explanation: The Valence Shell is the outermost orbital of an atom. The Valence Shell electrons are used in making chemical bonds and are the reason the atom has its physical and chemical properties.

The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms. This outermost shell is known as the valence shell, and the electrons found in it are called valence electro

How can you use these materials to test whether land or water heats faster? The materials are
sand
water
heat lamps
thermometers
cups

Answers

Explanation:

You can test by putting sand in one cup and water in another. Then you put the thermometers in the cups. One you have done that you can use the heat lamp and put both cups under it for the same amount of time. After you do  that and recorded your data you are done with the experiment.

Hope this helps :D

Thermometer will make sure for you t know which heats faster

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

image below #6

Answers

Answer:

the anse wold be A

I’m pretty sure The answers a

Please help! This one is easy, I just forgot! Multiple choice!

Answers

the answer is D. the mass number
It’s the mass number

This image shows a volcanic eruption in Hawaii with lava flowing into the sea.


Which statement best describes this eruption?

Its magma is high in silica.
Its magma has low viscosity.
Its gases are released in rapid bursts.
Its lava came from an explosive eruption.

Answers

Answer:

The Answer is C

Explanation:

Makes Sense

The statement 'its magma has a low viscosity.'  BEST describes this volcano eruption.

What is a volcano?

A volcano is a geological formation that is characterized to release heat materials to the Earth's surface.

The heat materials that may release a volcano include:

Hot lavaVolcanic ashToxic gases

A volcano is generally formed in diverging and/or converging plates, where different tectonic plates are in contact with each other.

In conclusion, the statement 'its magma has a low viscosity.'  BEST describes this volcano eruption.

Learn more about volcanoes here:

https://brainly.com/question/440765

The general formula for
Compound + Compound
----->
Compound + Compound
A. Synthesis Reactions
B .Double Replacement Reactions

Answers

Answer:

single replacement

Explanation:

If it has one plus sign it is decomposition or synthesis

however if it has two plus signs then it is single or double replacement

it is a synthesis reactions

If Bert the Bat travels eastward at 540 mph with a tail wind of 6 mph. What is his actual speed?

Answers

Answer:

12 mph

Explanation:

90 mph cause if you divide 540 by 6 you’ll get 90mph also sorry if it’s wrong.

HELP FAST ITS MULTIPLE CHOICE WILL MARK BRAINLIEST!!

Shells can also be called (choose all that apply)...

Question 4 options:

circles


energy levels


rings


spheres

Answers

Answer: I believe its the last one SPHERES.

Explanation:

Energy levels And rings
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