Melting point of 20 g of ice

Answers

Answer 1

Answer:

6680 J

Explanation:


Related Questions

When a person goes on a diet, do they really want to lose weight or mass?

Need answer asap

Answers

Answer:

Cutting calories will help you lose weight. But dieting alone can strip away muscle along with body fat. Research suggests that as much as 25 per cent of weight lost by dieters is from muscle. And that's not a good thing.

Explanation:

A sample of uranium absorbs 27.16 kJ of energy and changes temperature by 347.6 C. If 27.17 J/(1C * 1 mole) for uranium, the how many mole of U are in the sample?

Answers

Answer:

Q = 2.877 mole (4 sig. figs.)

Explanation:

Using Q = m·c·ΔT => m = Q/c·ΔT

Q = 27.16 Kj

c = 27.17 j/g·°C = 0.02717 Kj/g·°C

ΔT = 347.6 °C  

Q = 27.16 Kj/(0.02417j/mol·°C)(347.6°C) = 2.87.6869965 mol (calc. ans.)

= 2.877 mole (4 sig. figs.)

What is the agent that causes frost wedging?

Answers

Answer:

Freeze wedging is caused by the repeated freeze-thaw. Frost wedging occurs as the result of 9% expansion of water when it is converted to ice. Cracks filled with water are forced further apart when it freezes.

a hot air balloon is an example of what type of system ? an open system ? a closed system ? or a isolated system ?

Answers

Answer:

Also, hot air balloons are open systems—not closed, but again, the use of helium necessitates that the balloon be closed.

Explanation:

Answer:

open system

Explanation:

What is the name of the zone of life on earth ?

a . atmosphere
b . biosphere
c . lithosphere
d . magnetosphere

Answers

Answer:

B. Biosphere

Explanation:

T’Keyah puts salt in ice water and then in boiling water to see which will dissolve faster.Which dissolving rate factor is she testing in these tests?

Answers

Answer:

temperature

Explanation:

its in the book

Answer: agitation

Explanation:

Answer please
.............................................................

Answers

    This is not exactly a answer you can use but this is some information that you can use to find out the answer.

    You can usually confirm the charge associate degree particle unremarkably has by the element's position on the periodic table: The alkali metals (the IA elements) lose one negatron to create a ion with a 1+ charge. The alkaline-earth metal metals (IIA elements) lose 2 electrons to create a 2+ ion.

    Nonmetals type negative ions (anions). A range 7|chemical element|element|gas} atom should gain 3 electrons to possess an equivalent number of electrons as AN atom of the subsequent gas, neon. Thus, a gas atom can type AN ion with 3 additional electrons than protons and a charge of 3−.

PLZ HELP

What are 3 genetic disorders caused by either missing or extra chromosomes? Provide a brief short explanation of what causes the disorder and some potential symptoms.

Answers

Answer:

Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example.

Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed.

Complex disorders, where there are mutations in two or more genius.

Hope it help^^

Brainliest me pls

Batteries allow us to store energy for when it’s needed, such as starting a car engine or jump-starting another car whose battery has lost its charge. But batteries cannot operate without chemical reactions. What kind of energy do you think is stored in the substances within the battery?

Answers

Answer:

Chemical energy

Explanation:

I hope this helped you!

Batteries store the energy in the form of chemical energy that chemical energy is converted into electrical energy. Chemical energy is used to stored in the substances within battery.

What is electrochemical energy ?

The conversion of chemical energy into electrical energy or vice versa is called as electrochemical energy . This includes reactions transferring electrons, redox reactions .

Redox reaction in which reduction and oxidation takes place simultaneously. Reduction, when a substance receives one electron. Oxidation when a substance gives away one electron.

A battery is a device that stores chemical energy and converts it to electrical energy. The chemical reactions in a battery involve the flow of electrons from one material (electrode) to another, through an external circuit.

Thus, chemical energy is used to store in the substance within battery.

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Convection currents are one force driving plate tectonics. What other force plays a major role?

Heat transfer

Gravity

Radioactive decay

Fossil formation

Answers

Answer:

Gravity

Explanation:

Gravity was founded by famous physician Sir Izak Newton.The gravity is a phenomenon by which every object in the universe attracts eachotherNewton discovered gravity by the falling apple from tree.

The following factors contribute to plate tectonics: The Mantle's Convection. Mountain push gravitational force at the spreading ridges, Block pull gravitational force in subduction zones. Hence, option B is correct.

What is gravitational force ?

The gravitational force, which is what pushes mass-containing objects toward one another. We frequently consider the pull of gravity from the Earth. Your body is kept on the ground by this force. However, all mass-bearing objects are pulled toward one another by gravity.

Population growth and changes in people's wants and activities are the main causes behind this. Changes in the overall levels of output and consumption are caused by these main movers.

The driving forces put strain on the environment through these modifications to production and consumption. In the direction of motion, gravity produces an active driving force.

Thus, option B is correct.

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What is the relationship between the pressure of a gas and the absolute
temperature?

Answers

they don't have any relationship between them

tornadoes form when updrafts from thunderstorms begin to _____

First answer that is correct gets brainly

Answers

Tornadoes form when updrafts from thunderstorms begin to interact with strong wind shear and develop a rotating column of air.

Updrafts are powerful vertical currents of air that occur within thunderstorms, caused by the rapid heating of the Earth's surface and the subsequent convective process. These updrafts carry warm, moist air upward, creating a conducive environment for the formation of severe weather phenomena.

When the updrafts encounter wind shear, which is the change in wind speed and direction with height, it can lead to the development of horizontal vorticity. Wind shear creates a rotating motion within the storm, where air at different heights starts to rotate at different speeds, generating a horizontal spin.

As the updraft continues to intensify, it tilts the rotating column of air from horizontal to vertical, forming a mesocyclone. The mesocyclone is a critical component in tornado formation. It acts as a localized area of strong rotation within the storm, extending from the cloud base to the mid-levels of the atmosphere.

Under specific conditions, such as the presence of a strong updraft, a well-developed mesocyclone, and further enhancement from other atmospheric factors, the mesocyclone can contract and intensify into a tornado. The process is complex and influenced by various meteorological factors, but the interaction between updrafts, wind shear, and the development of rotation plays a fundamental role in tornado formation.

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What is carbon? What does it do?

Answers

The Short Answer: Carbon is in carbon dioxide, which is a greenhouse gas that works to trap heat close to Earth. It helps Earth hold the energy it receives from the Sun so it doesn't all escape back into space. If it weren't for carbon dioxide, Earth's ocean would be frozen solid.

Correct measurement for solubility

Answers

Answer:

g/100g

Explanation:

grams per 100 g of solvent or short term g/100g

Answer:

grams of solute per milliliters of solution

Explanation:

ur welcome

Which statement is correct about the changes in fauna’s during one of these five major events

Answers

Answer:

source Mass extinctions are episodes in which a large number of plant and animal species become extinct within a relatively short period of geologic time—from possibly a few thousand to a few million years. ... Permian Period — 252 million years ago. Devonian Period — 359 million years ago. Ordovician Period — 443 million years

BP: Nowadays, scientists are aware of five mass extinction events in the past, starting with the End-Ordovician Extinction 450 million years ago and up to the End-Cretaceous Extinction that killed off the dinosaurs 66 million years ago

In your own words- Mass extinctions area unit episodes during which an oversized variety of plant and animal species become extinct at intervals a comparatively short amount of earth science time—from probably some thousand to some million years. ... Permian period — 252 million years past. period — 359 million years past. geological period — 443 million years

BP: today, scientists area unit alert to 5 mass extinction events within the past, beginning with the End-Ordovician Extinction 450 million years past and up to the End-Cretaceous Extinction that killed off the dinosaurs sixty six million years past

Explanation:

source is where i got this information and the in your own words is it fully rewritten hope this helps and my aplogies for making this so lengthy!

An unknown element sample has 2 isotopes present. The first isotope has a mass of 6.017 amu and is
7.30% abundant. The second has a mass of 7.018 amu and an abundance of 92.7%. Calculate the
average atomic mass of this element

Answers

Answer:

Calculating Atomic Mass

Change each percent abundance into decimal form by dividing by 100. Multiply this value by the atomic mass of that isotope. Add together for each isotope to get the average atomic mass.

Explanation:

have a nice day

What is the missing letter in H,J,K,L,M,N,O,P.? And what is the opposite of HATE.? And what is the opposite of ME.?

Think about it -,-​

Answers

Answer:

The letter I

Explanation:

H, I, J, K, L, M, N, O, P

Answer:

Ahhhhhhhhhhhhhhh. Me too. I really needed to hear that today.

Explanation:

thanks for that.

Is it possible to move the atoms close enough that the nuclei come in contact?

Answers

Answer:

I believe not.

Explanation:

From what I have been told atoms can never come into contact beyond the electron barrier.

if the column of water in the water barometer rose to a height of 36 feet, what would the atmospheric pressure be in mm hg?

Answers

The Atmospheric pressure is usually constant and is; 760mm Hg.

According bro the question;

The column of water in the water barometer rose to a height of 36 feet.

The absolute pressure is given as;

P(abs) = P(atm) + P(gauge)

The gauge pressure is dependent on the height of the water column.

Ultimately, the atmospheric pressure is constant and is given as; 760mm Hg.

Read more;

https://brainly.com/question/24985840

Someone know the answer for that question

Answers

Anything that takes up space so C

Convert 1.56x10^30 particles of sodium chloride to grams of sodium chloride

Answers

Answer:

I cannot tell yet

Explanation:

I don't take that class yet but ill get back to you

What is an element? Arrow

Answers

Answer:

One arrow is positioned in each box according to Hund's Rule which tells us to maximise the number of unpaired electrons in orbitals of the same subshell, and, to give those electrons the same "spin" (parallel spin).

Explanation:

Describe the difference between accuracy and precision. How do these two concepts relate to the idea of significant digits?

Answers

Answer:

Accuracy of a measured value refers to how close a measurement is to the correct value. The uncertainty in a measurement is an estimate of the amount by which the measurement result may differ from this value. Precision of measured values refers to how close the agreement is between repeated measurements.

Explanation:

What is the major product formed when the alcohol is treated with hcl?.

Answers

Answer: Alcohol undergoes nucleophilic substitution when reacted with hydrohalic acids (HX) such as HCl.

Explanation:

What number should be placed in front of Fe to balance this chemical

equation?

_Fe+302>2Fe2O3

A. 8

B. 2

C. 1

D. 4

Answers

the answer is B. 2

because there is 2 iron on the right side so you need another two on the left side to balance it out

7. What is the name of the compound AICO3?

Answers

Answer:

Calcium carbonate

Explanation:

Hope this helps :)

Have an amazing day <3

It is Aluminum Carbonate

Do distilled water conduct electricity what will happen if we add sugar to it and then salted

Answers

Answer:

No, distilled water does not conduct electricity.If we were to add sugar then it will not conduct electricity, but if we were to add salt though it would conduct electricity.

Explanation:

Will give 100 brainly points and brainlyest if you help plz
You will need the following items: a rope about 10 to 20 meters long, a meter or yard stick, a watch that records seconds, and a helper. Tie one end of the rope to a doorknob or other secure object at about waist height. Have your helper take one end of the rope and whip it up and down

Answers

Explanation:

i need to do it or what do i nedd

Answer:

Creating A Wave w/ rope

1 . The wave I created is a transverse wave, this is because the wave was moving in a perpendicular direction.

2. 20 Meters

3. 60 Hz

4. 1200 m/s

Creating A Wave w/ a slinky

1. The wave I created was a longitude wave, this is because the wave was moving parallel and the medium was going left.

2. 2 meters

3. 123 Hz

4. 246 m/s

Explanation:

I rally hope this helps you!!

Happy holidays!! <33

Question 4 of 5
Which characteristic describes the living things in the domain Eukarya?
A. They can be made up of prokaryotic cells.
B. They are made up of eukaryotic cells.
C. They are all multicellular organisms.
D. They are made up of cells that lack a nucleus.
SUBMIT

Answers

Answer:

he presence of nucleus which contains genetic material and is enclosed by a nuclear membrane sets them apart from prokaryotic cells. All complex organisms are eukaryotic and they reproduce by mitosis or meiosis. Eukaryotic cells are typically much larger than those of prokaryotes.

Explanation:

An alpha particle is equivalent to the nucleus of an atom of which element?(1 point)
A hydrogen
B helium
C nitrogen
D carbon
ill mark brainliest!!!

Answers

Answer: An alpha-particle is identical to the nucleus of a normal (atomic mass four) helium atom i.e. a doubly ionised helium atom. Alpha particles (also termed alpha radiation or alpha rays) was the first nuclear radiation to be discovered, beta particles and gamma rays were identified soon after.

Answer: D. Carbon

Explanation: Because I said so.

Hope this helps.

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