The Law of Conservation of Energy states that energy cannot be created or _____.



Question 1 options:

destroyed


enlarged


changed


broken

Answers

Answer 1

Answer:

Destroyed.

Explanation:

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. 


Related Questions

How many molecules are there in 3.00
moes of NH₃

Answers

No of moles=3mol

Now

No of molecules:

[tex]\\ \sf\longrightarrow No\:of\;moles\times Avagdro\:no)[/tex]

[tex]\\ \sf\longrightarrow 3(6.022\times 10^{23})[/tex]

[tex]\\ \sf\longrightarrow 18.066\times 10^{23}[/tex]

[tex]\\ \sf\longrightarrow 1.8066\times 10^{22} molecules [/tex]

how many grams of Zn are there in 0.54 mol of Zn

Answers

Answer:

35.3052 grams of zinc are there in 0.54 mol of zn.

C.5A What is the symbol of the atom shown below?*
8 points
8 electrons
8 protons
8 neutrons
N
c

Answers

..........................

A chunk of sulfur has a volume of 8.33 cm3. What is the mass of this sulfur? (Density of sulfur = 2.07 g/cm3.)

Answers

Explanation:

equations to note:

density= mass/volume

mass= volume *density

volume= mass/density

you have a volume- 8.33cm3

you have a density- 2.07 g/cm3

Answer:

8.33cm3 * 2.07g/cm3=  17.24g

mass= 17.24g

What is "plant food"?

Answers

Answer:

Plant food is the sugars created via photosynthesis. The sugar created is glucose which can be used by the plant for energy and also to make other things like starch and cellulose.

Explanation:

Plant food is the sugars created via photosynthesis. The sugar created is glucose which can be used by the plant for energy and also to make other things like starch and cellulose. I hope this helps : )

Homeostasis in a constantly changing environment is a process known as

Answers

The Excretory system

Please help me with this question it’s really confusing lol. Question 21. Thank youuuu!! :))

Answers

Answer:

You must write an article if you think there is a link between it asteroid impact and a dinosaur's extinction. explain the correlation between the two events I'm provide evidence within the article that you write that supports your claims.

please help!!!!!!! thank you :)

Answers

what do you need help with?
i don’t see anything

One of the first major scientific discoveries of the Renaissance was made by a Polish mathematician and astronomer,
who introduced the
theory.

Answers

One of the first major scientific discoveries of the Renaissance was made by a polish mathematician and astronomer, Nicolaus Copernicus who introduced the heliocentric theory.

Nicolaus Copernicus (1473-1543) was born in Torun, Poland, and he introduced a book called De revolutionibus orbium coelestium (On the Revolutions of the Heavenly Spheres) in 1543, where he stated that:

"All the spheres (planets and moons) revolve around the sun as their midpoint; therefore, the sun is the center of the universe."

At that time, the Earth was considered the center of the Universe, according to Aristotle (384-322 BC), synthesized in the Ptolemy's geocentric theory appeared in The Almagest (140 AD).

Copernicus generated controversy, mostly among the clergy and scientists, and he wrote in his book that his main intention was to propose some changes to the Ptolemy's geocentric theory that better explained planetary motion but without trying to refute it at all.

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The pressure exerted by a gas on its container is directly proportional to ________. Group of answer choices the volume of the container the mass of the individual gas molecules the Celsius temperature of the gas the number of molecules of gas in the sample the Fahrenheit temperature of the gas

Answers

The pressure exerted by a gas on its container is directly proportional to the mass of the individual gas molecules.

Gas law states that the pressure exerted by a gas on its container is directly proportional to its absolute temperature (Kelvin temperature) and number of moles of the gas.

PV = nRT

where;

P is the pressure of the gasV is the volume of the gasR is the gas constantT is the absolute temperature of the gasn is number of gas moles

[tex]number \ of \ moles = \frac{\ reacting \ mass \ of \ individual \ gas}{molecular \ mass}= \frac{m}{M}[/tex]

[tex]PV = \frac{m}{M} RT[/tex]

Thus, the pressure exerted by a gas on its container is directly proportional to the mass of the individual gas molecules.

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Which is a characteristic of an atom?

Atoms are the largest unit of matter.

Atoms can be seen by the naked eye.

Atoms come in different varieties.

Atoms are created in the Earth’s core.

Answers

Answer:

its atomic number

Explanation:

which is defined as the number of units of positive charge (protons) in the nucleus. For example, if an atom has a Z of 6, it is carbon, while a Z of 92 corresponds to uranium.

Answer:

C. Atoms come in different varieties


Hope this helps!!

I need help with this!!!!!!

Answers

Answer:

you got to do something then in like word then add it to files and if its the like work you gotta do you will get a good grade

Explanation:

Imagine you are combining carbon and oxygen in a chemical reaction. If some of the carbon forms carbon monoxide instead of carbon dioxide, this would decrease the reaction's _____ of CO2.
A) total energy

B) C:O ratio

C) actual yield

D) theoretical yield

Answers

A- total energy
Hope this helps

One of the following species is not isoclectronic. A. PO4³-B. BrO4- C. H2SO4 D. XeF4 E. CCl4​

Answers

Answer:

फ्य्फ्य्क्ज्य्य्क्सुग्किग्क्सिगिदित्फ

What type of decay is illustrated by the equation below?
A. alpha decay
B. beta decay
C. positron emission
D. electron capture

Answers

B. beta decay

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Answer:

Beta Decay (B)

Which electrons does an electron-dot diagram represent?

Answers

Answer:

a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom.

Answer:

A electron dot diagram is a representation of the Valence electron of an atom that uses dots around the symbol of the element

Simplified answer = The Valence Electrons

Need this answered immediately. 50 points.

Answers

Answer:

a

b

d

c

a

Explanation:

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Answer:

Hey if its up tomorrow I can I can’t rn sorry :(

Explanation:

What happens to the molecules of Nitrogen as it goes through deposition?

Answers

Nitrogen is often a limiting nutrient in many ecosystems because
A) there is much less nitrogen in the atmosphere than carbon.
B) elemental nitrogen is very rapidly used by most organisms.
C) nitrogen availability is being reduced by pollution due to fertilizer use.
D) most organisms cannot use nitrogen in its elemental form.

Which element is the most reactive?

Answers

Answer:

Cesium

Explanation:

Cesium is second from the bottom of this group, has 6 shells of electrons, and it matches the features of a reactive atom, making it the most reactive element.

How are radiation levels kept in balance?

Outgoing

Earth emits


Back toward the sun in the form of



Answers

Answer:

Explanation:We known that Earths energy machine is driven by sunlight which acts as fuel for this machine and to strike a balance between outgoing long wave radiation and short wave radiation there are many factors which are involved in this process.Sun emits this energy in the form of short wave radiation because of the huge energy it has and short wave radiation are higher in energy.Hence, they reach the earth surface mostly as visible and UV rays.After reaching the earths surface what happens with these rays is that they get absorbed by the clouds and other constituents of Earth.

Now, this energy needs to be emitted back in to space in order to balance out the energy budget of earth and that is why this energy is emitted back as long wave radiation which have less energy and also earth has less energy unlike the sun.Loss of this energy is essential as Earth looses most of its energy through this and results in cooling.But when this OLR decreases it should be a cause of concern for us.

This imbalance is caused by a wide range of different human induced activities which has a cumulative effect on the temperature of earth.These activities gives rise to a huge gain in the CO2 concentration which is why this word has gain so much popularity and a cause of widespread concern for us.At community level we contribute to this heating by increasing usage of personal automobiles rather than going for public transport , advancement in technology has greatly changed our lifestyles making it more simpler and easier but this demands more energy consumption.Landscape changes are one of the most important because its taking place at a faster rate.Most of the land being cleared off to built new houses which means clearing off the existing vegetation which leads to temperature rise.Setting up of Industry depending on its type can reduce the amount of OLR escaping the surface by introducing more amount of GHGs in to the atmosphere.

Its these small communities which add up to become the entire human population causing a massive damage and hence at community level if people realize and take necessary steps things will start to change.

list of elements whose name is derived from scientist names​

Answers

Answer:

Curium,Bohrium,Einsteinium,Lawrencium,Seaborgium,Ferminium

Explanation:

What did Fermi mean when he said, "The reaction is self-sustaining"?

The reaction reached critical mass.
A spontaneous chain reaction had been accomplished.
The nuclear reaction was out of control.
The nuclear reaction could be controlled and maintained.

Answers

Answer:

The nuclear reaction could be controlled and maintained.

Explanation:

People had initiated a self-sustaining nuclear reaction--and then stopped it. He had released the energy of the atom's nucleus and controlled that energy.

Fermi's achievement in setting off the first self-sustaining nuclear chain reaction from his design of an atomic pile led to a new Age of the Atom. The controlled release of nuclear energy was now a reality

PLEASE HELP!!!!! i give a lot of points!!!!

Answers

Answer:

I think it s the third one

BTW yw if it's correct

is it possible to convert molecule to molecule?

Answers

Answer:

yes, it's possible to covert molecule to molecule

Explanation:

Converting between molecules and moles is done by either multiplying by or dividing by Avogadro's number.

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3. A sample of gas has a volume of 364 mL at a temperature of 25 ᴼC. What will the volume be if the temperature is changed to 100 ᴼC while the pressure is kept constant?

Answers

Answer:

1027.9 mL, its easy

Explanation:

Latisha runs a plant nursery. Which field of science would best help Latisha
learn how to grow plants?
O A. Life science
B. Space science
C. Earth science
D. Physical science

Answers

Answer:

A. Life science

Explanation:

Life science deals with organisms and plants are organisms.

hello please help:) thank you!

Answers

Answer:

I think the coefficient is 2

what is the difference between cyclic compound and straight chain compound in hydrocarbons reaction​

Answers

Explanation:

Cyclic Hydrocarbons

A cyclic hydrocarbon is a hydrocarbon in which the carbon chain joins to itself in a ring. A cycloalkane is a cyclic hydrocarbon in which all of the carbon-carbon bonds are single bonds. Like other alkanes, cycloalkanes are saturated compounds. Cycloalkanes have the general formula CnH2nCnH2n. The simplest cycloalkane is cyclopropane, a three-carbon ring.

What type of bonds typically form between two nonmetal atoms?

Answers

Answer:

Covalent Bonds

A covalent bond is formed between two non-metals that have similar electronegativities. Neither atom is "strong" enough to attract electrons from the other. For stabilization, they share their electrons from outer molecular orbit with others

Answer:

Covalent bonds form between two non-metal atoms.

Explanation:

Nonpolar covalent bonds form when the electronegativity values are very similar, while polar covalent bonds form when the electronegativity values are a little further apart. If the electronegativity values of two atoms are different, ionic bonds are formed.

How are physical changes related to state of matter changes?

Answers

Answer:

when something change physicaly the state of matter changes.

Explanation:

like ice when it is melted it turns into water a liquid.

A solid to liquid

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