during which two processes does a substance release energy?

Answers

Answer 1

Answer:

Freezing and condensation

Explanation:

Because they are exothermic, they release energy


Related Questions

What reasons did the Pilgrims give for creating the Mayflower Compact?

to create a colony, establish a new church, and provide a long life for their children

to organize a new nation and create order, and for financial gain

to organize themselves, guarantee a long life for the colony, and achieve their goals in setting up the colony
“[To] Combine ourselves together into a Civil Body Politic, for our better ordering and preservation and furtherance of the ends aforesaid”

—Mayflower Compact

Answers

Answer:

To organize a new nation and create order and for financial gain.

Answer:

C the person above is wrong its

Explanation:

to organize themselves, guarantee a long life for the colony, and achieve their goals in setting up the colony

Explanation:

Someone pls help me I will make you brain

Answers

Answer:

Thanks but I already have a brain LOL.

Your answer is D cooler temperatures.

Melting permisfrost actualy is a source of greenhouse gas because it realeses water which could in turn be vaporized eventualy.

Unless otherwise instructed, you may refer to the periodic table in the Chemistry: Problems and Solutions book for this question.

Which element belongs to the p-block?


cobalt


oxygen


rubidium


hydrogen

Answers

Answer: oxygen

There is the s,p,d and f blocks, from groups 1-2 that is the s block, 13-18 that’s the p block, 3-12 is the d block and the f would be lanthanide(#57-71) and actinide (#89-103).

Help! Will go be brianleist

Answers

Answer:

d

Explanation:

Answer: c

Explanation:

is it true or false when the there are too many protons making the nuclei unstable, it will undergo a positron decay and a proton will turn into a neutron.

Answers

Answer:

True

Explanation:

As the number of protons in the nucleus increases, the number of neutrons needed for a stable nucleus increases even more rapidly.

write the formulas of alkanes that contain three, five, seven, and nine carbon atoms​

Answers

Answer:

Explanation:

Name Number of Carbon Atoms Molecular Formula

methane  1 CH4

ethane 2 C2H6

propane 3 C3H8

butane 4 C4H10

what is responsible for changes in the state of matter?

and how are

the molecules of a liquid different from that of a solid? PKSS HELOOOÑLPPPP

Answers

Answer:

Temperature and pressure are the two factors which are responsible for change in state of matter.

Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. ... In the solid the particles vibrate in place. Liquid – In a liquid, particles will flow or glide over one another, but stay toward the bottom of the container.

Hope this helps, mark as Brainliest please...

What evidence is there to support the theory that strong nuclear force is greater than electromagnetic force?
A: Electrons are attracted to protons.
B: Protons repel other protons.
C:The nucleus holds the protons together.
D:Protons and neutrons are attracted to each other.

Answers

Answer:

The electromagnetic force is a long range force which acts of charged particles. Like charges repel and unlike charges attract. ... The strong nuclear force is very short range and can only bind adjacent protons and neutrons. The electromagnetic force is long range.

Explanation:

Gravity relates to a stream's ability to erode and deposit material by causing water to flow faster down a steep slope. True or False

Answers

Answer:

true

Explanation:

pls help noww
Just want to see who's the smartest here
promise to tag u as brainliest​

Answers

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

1. The equation representing the equation is ~

[tex] \mathrm{Na + Cl\rightarrow NaCl}[/tex]

The given reaction is a redox reaction because there's a transfer of electron from Sodium (Na) to chlorine (Cl)

where sodium is oxidized (due to loss of electron) and chlorine get reduced (due to gain of electron).

2. Sodium is a highly reactive element which belongs to the 1st group of periodic table, hence it can catch fire if it is kept free in atmosphere. so in order to prevent that it is stored in kerosene oil, which doesn't let Sodium come in contact with air .

6. Potential energy can be
transformed into kinetic energy
of force is applied to the object.
True or false?

Answers

Answer:

true

Explanation:

because there is love in the universe and we converse in each others mind soul brain time stone

Which hybrid orbitals overlap to form the sigma bonds between the indicated atoms in xanthine?

Answers

Many nitrogen and carbon atoms can be found in the structure of a heterocyclic molecule called xanthine, which is present in many biological systems.

The development of a sigma bond between these atoms is an essential component of its binding. A special example is the sigma bond between the nitrogen atom and the neighboring carbon atom. In the context of this sigma bond, the hybridization state of nitrogen can be either [tex]\rm sp^2[/tex]or [tex]\rm sp^3[/tex], and the hybridization state of carbon can be [tex]\rm sp^3[/tex]. A sigma bond is formed when the hybrid orbitals of carbon and nitrogen, which are each [tex]\rm sp^2[/tex] hybridized and [tex]\rm sp^3[/tex] hybridized, overlap. A strong covalent bond can develop when the [tex]\rm sp^2[/tex] hybrid orbitals of nitrogen and carbon line up. This allows electron sharing.

Learn more about sigma bond, here:

https://brainly.com/question/31238729

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Someone pls help me I will make you brain

Answers

Answer:

the second answer

Explanation:

Answer:

A Erosion of structures and buildings

Explanation:

Which of the following properties is a chemical property?

Answers

Answer:

flammability, toxicity, acidity, reactivity are some examples.

sorry you left out your options.

Answer:

Where are the options

Explanation:

Can you be a little more specific about your question?

Metals are good conductors of current.

Answers

Answer:

absolutely correct....................

NEED HELP ASAP. Write a statement explaining your claim about whether or not the equation is correctly balanced.
Then, provide evidence that supports your claim about whether or not the equation is correctly
balanced. Next, connect your evidence to your claim about the equation.

Answers

Answer:

Explanation:

Hi! can you add the choices.

How do anion formation and valence electrons relate?

Answers

Answer:

Atoms gain valence electrons to form anions.

Explanation:

a person dies, and within hours, the skeletal muscles develop a locked contraction known as rigor mortis. calcium ions leak from the sarcoplasmic reticulum into cytoplasm. from your knowledge of cross bridge cycling, what best explains this rigor?

Answers

Rigor mortis is the stiffening of the body after death. After death, the body begins to get cold. From about two to six hours after death, the muscles start to stiffen, probably because the actin and myosin filaments of the muscle slide into each other. The rigor mortis starts at the eyelids, jaw and neck and then slowly spreads to all parts of the body within six hours.

Contrary to popular belief, rigor mortis will occur more quickly in high ambient temperatures than in cold conditions. This is because the underlying chemical reaction occurs faster at higher temperatures.  

Learn more in https://brainly.com/question/14139041

Equation between Mg and H2O

Answers

Answer:

Mg + 2H2O → Mg(OH)2 + H2, is normally sluggish, but it becomes reasonably rapid when a milled composite of powdered magnesium metal and powdered iron (1−10 mol %) is used with sodium chloride solutions.

Give two other examples each to acidic and basic oxides

Answers

Answer:

Acidic oxide, so², So³, Co², Cl²O7

Basic oxide: CaO, MgO, Na O

Explanation:

An oxide that combines with water to give an acid is termed as an acidic oxide. The oxide that gives a base in water is known as a basic oxide.

Calculate the number of moles of alkali in 25cm3 of NaOH solution used.

Answers

Answer:

0.001mol

Explanation:

volume (NaOH) =25cm³ =0.025dm³

molar volume = 22.4dm³

n = V = 0.025 = 0.001mol

Vm 22.4

which two particles would be attracted to each other?

Answers

Answer: protons and electrons.

Explanation:

NO LINKS PLS HELP I WILL MARK THE BRAINIEST ANSWER

Answers

Answer:

Option a

Explanation:

simple

Answer:

The two solutions do not react with each other unless the water is boiled off, then the two will decompose.

Explanation:

Each mineral group has a distinctive chemical feature such as
a. oxides are a metal combined with oxygen
b. sulfides are a metal combined with sulfur and oxygen
c. halides are a salt combined with a metallic atom
d. phosphates are made of phosphate polygons

Answers

Answer:

A

Explanation:

70 points!!!! will mark the brainliest,
ANSWER ASAP PLS??????????????

Answers

Answer:

I believe it's A.

Explanation:

Answer:

option C

Explanation:

There are 2 types of changes

Physical change :- The physical properties are changed and its temporary.Chemical change :- The chemical properties are changed and its permanent.

which statement best describes what occurs during a chemical reaction?

a) the bondsman reactants break so that elements can rearrange down form new products

b)bonds within the nucleus of reactants atoms are broken and rearranged to form new product atoms

c) the bonds and products break so that elements can rearrange and form new reactants

d)reactants atoms are destroyed releasing energy which is used to create new product atoms​

Answers

Answer:

bonds within the nucleus of reactants atoms are broken and rearranged to form new product atoms

Which of the following elements has the smallest atomic radius?

Group of answer choices

Nitrogen

Oxygen

Fluorine

Carbon

Answers

Answer:

Fluroine

Explanation:

Answer:

Fluorine

Explanation:

Nitrogen atomic radius: 155 pm

Oxygen atomic radius: 152 pm

Fluorine atomic radius: 147 pm

Carbon atomic radius: 170 pm

Therefore, fluorine has the smallest atomic radius.

Which sequence is used to separate a soluble salt from a mixture of a soluble and an insoluble
salt?
A
add solvent, heat the mixture, crystallise the mixture
add solvent, heat the mixture, filter, crystallise the filtrate
B
C
heat the mixture, filter, crystallise the filtrate
heat the mixture, filter, add solvent, crystallise the filtrate
D

Answers

C. because heat the mixture filter djrjd

What are the most common sources of nitrates that lead to unhealthy water systems

Answers

Answer:

Sources of nitrate that can enter your well include fertilizers, septic systems, animal feedlots, industrial waste, and food processing waste.

how does the advancement of medical technology increase the number of medical ethical issues that arise?

Answers

Answer:

People are getting richer and richer as technology advances, this may make it so that some people are getting treated unfairly. Signs of little money may support the reason that you are not getting the help you need; this means that health problems would arise more, resulting in an unfair lifestyle.

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