How many grams of liquid water can be heated by 8920 joules through a change in temperature of 30K?

Answers

Answer 1

Answer:

One of water's most significant properties is that it takes a lot of energy to heat it. Precisely, water has to absorb 4,184 Joules of heat (1 calorie) for the temperature of one kilogram of water to increase 1°C. For comparison sake, it only takes 385 Joules of heat to raise 1 kilogram of copper 1°C.

Explanation:


Related Questions

1.-Una solución de 1600 ml contiene 9,5 gramos de agua oxigenada H2O2 Calcular el porcentaje peso volumen del soluto.

Answers

Sorry, I tried to work it out but I don’t hit it

Which tool should Darla and Rob use to measure the force that pulls a car down the map

Answers

Answer:

C. A Spring Scale

Explanation:

Using process of elimination, we can quickly decide that a stopwatch and a ruler will not be useful in measuring the force. This leaves us with either the spring scale or a balance scale. A balance scale is used to compare two weights, so this is eliminated. That leaves us with a spring scale. This is because we can attached the spring scale to the car and when we let it go, we can record the force. I hope this helps!

can anyone send me the structure of iron ?
;

Answers

Answer:

HOPE IT HELPS

Explanation:

PLS MARK BRAINLIEST ^_^

Answer:

Here you go dear..

Here's the structure of iron you were talking about earlier..

(ㆁωㆁ)(◍•ᴗ•◍)

Explanation:

Hope it helps you..

Your welcome in advance..

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HELP!! pick the correct answer please. picture attached

Answers

Answer:

A solution, in science, refers to a type of mixture involving two or more substances. Specifically, the solution definition refers to a type of homogeneous mixture - i.e., a mixture that has a uniform composition and its individual components cannot be distinguished

Answer:

C.Concetrated solution

Explanation:

hope it's help.

please help my little brother on this I don't get it either free brainless ​

Answers

Answer:

igneous rock is the correct answer

3. What is the picture displayed? *
1 point
Captionless Image

Answers

Answer:

(not sure what's the question ) Captionless image??


Which of the following species of manganese would have the largest atomic radius?

Answers

Answer:

Largest is Mg as across the period atomic radius decreases

How does the rock cycle and plate tectonics interfere with geochemists trying to determine the age of the Earth? Chose the best answer.

The rock cycle and plate tectonics cause Earth to lose its outer layer every one billion years as it creates new crust.


The rock cycle and plate tectonics cause Earth's rocks to break down over time and they are recycled through natural processes.


The rock cycle and plate tectonics cause Earth's original rocks to be buried deep in the ocean where they cannot be discovered.

Answers

Answer:

The rock cycle and plate tectonics cause Earth's rocks to break down over time and they are recycled through natural processes.

Explanation:

Rock cycle(Attachment-1)

The rock cycle and plate tectonics cause Earth's rocks to break down over time and they are recycled through natural processes is the best answer.

What are rock cycle?

The rock cycle is defined as the process through which the three main rock types i.e. igneous, metamorphic and sedimentary rock transfer from one type to another type.

The plate tectonics is defined as a theory that earth's outer shell is divided into large slabs of solid rocks known as "plates" that glide over earth mantle, the rocky inner layer above earth's core.

Thus, the rock cycle and plate tectonics cause Earth's rocks to break down over time and they are recycled through natural processes is the best answer.

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describe another medical condition or disease where the primary system causes a serious problem with a secondary system

Answers

Answer:

Congestive heart failure

Explanation:

Congestive heart failure happens when your heart gets too weak to pump blood from the lungs out to the body. Pressure builds up in the heart which puts pressure on the blood vessels of the lungs. This will lead to leakage of the vessels and the fluids build up in the air sacs of the lungs. This condition is called pulmonary edema.

Pulmonary edema occurs when fluid builds up in the lungs making it hard to breathe. It may start out as running out of breath easily but if left untreated (both conditions) symptoms get worse over time.

L 2.5.2 Test (CST): Computer-Scored Unit Test
Question 5 of 25
How does increasing the temperature affect a reaction?
A. An increase in temperature slows down the reaction.
B. An increase in temperature increases the reaction rate.
C. An increase in temperature lowers the reaction's activation energy.
D. An increase in temperature changes equilibrium concentrations.
SUBMIT

Answers

Answer:

b

Explanation:

The concept Arrhenius equation is used here to determine the temperature dependence of the rate of a reaction. An increase in temperature increases the rate of a reaction. The correct option is B.

What is Arrhenius equation?

The rate of a chemical reaction is affected by the factors like temperature and activation energy. The influence of these factors on the rate of the reaction is explained by the Arrhenius equation.

The equation is given as:

[tex]k = A. e^{-} ^{E_{a} } /RT[/tex]

k - Rate constant

A - Frequency factor

Eₐ - Activation energy

R - Gas constant

T - Temperature

Since 'Temperature' appears in the denominator of the negative power of the exponential factor of the equation, it is evident that an increase in temperature increases the value of rate constant and thereby increases the rate of the reaction.

Thus the correct option is B.

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Select the best answer.
Which element's atoms are most likely to touch each other without overlapping?
iron
hydrogen
carbon
radon

Answers

Answer: iron

Explanation: Metals' atoms are closely bonded in a crystal lattice. In metallic bonds, the electron cloud boundaries of atoms touch each other. Many nonmetals occur as diatomic molecules. The electron clouds of these two bonded nonmetal atoms overlap .

Hydrogen atoms are most likely to touch each other without overlapping because of their small size and simple atomic structure.

A hydrogen molecule is a particle of the synthetic component hydrogen. The electrically unbiased molecule contains a solitary emphatically charged proton and a solitary adversely charged electron bound to the core by the Coulomb force. Nuclear hydrogen is around 75% of the baryonic mass of the universe.

Hydrogen exist as diatomic particle, I.e., it can exist by attaching to another hydrogen. You realize that hydrogen has just a single electron in it's furthest and just shell. Yet, to accomplish a steady design, there should be two electrons in this shell. So two hydrogen molecules share their electrons by holding.

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Given R = 0.0821L⋅atm/mol⋅k, how many moles of gas are in a 1.25 L container at 300K and 2.07 atm?

A. 9.51 mol

B. 0.105 mol

C. 0.084 mol

D. 0.067 mol

Answers

Explanation:

Its B) 0.105 enjoy youre day


Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.

2NaClO3­ --> 2NaCl +3O2

How many moles of NaCl were produced by 10 moles of NaClO3­? Round your answer to the nearest whole number.

Answers

Answer:

10 moles of sodium chloride

Explanation:

[tex]\sf{}[/tex]

Polymers are large organic molecules that are made of
a.
cations.
c.
carbon and oxygen only.
b.
anions.
d.
repeating units.

Answers

Answer:

D) Repeating units.

Explanation:

Polymers are large macromolecules which are made up of many repeating structural units called monomers :)

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Read the following statement:

For every action, there is an equal and opposite reaction.

Does the statement describe a scientific law?

Yes, because it describes action-reaction force pairs

No, because it describes action-reaction force pairs

Yes, because it is applicable to a single or only a few events in the natural world

No, because it is applicable to a single or only a few events in the natural world

Answers

Yes, because it describes action-reaction force pairs

A student makes a diagram that shows the layers of Earth. The student incorrectly claims that the density of each layer is the same. Which of these accurately describes the
layers of Earth?

The density of Earth's layers increases from the center to the surface,

The density of Earth's layers increases as you move down toward the center.

The mantle is less dense than the layer above it but denser than the layer below it.

The outer core is denser than the layer below it but less dense than the layer above it.

Answers

Answer:

B.

Explanation:

what is kinetic enegry

Answers

Kinetic energy → the kinetic energy of an object is the energy that it possesses due to its motion

For an example ↓

which is a semi conductor? metal, nonmetal, mettaliod

Answers

Answer:

mettaliod

Explanation:

Answer:

Metalloids have properties intermediate between the metals and nonmetals. They can form alloys with other metals. … Some metalloids, such as silicon and germanium, can act as electrical conductors under the right conditions, thus they are called semiconductors.

Explanation:

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What are the sources of petrochemicals

Answers

Answer:

Petrochemicals are chemical products derived from petroleum, although many of the same chemical compounds are also obtained from other fossil fuels such as coal and natural gas or from renewable sources such as corn, sugar cane, and other types of biomass.

Answer:

The sources of petrochemical are: fossil fuel such as coal and natural gases or from renewable sources such corn, sugar, cane and other types of biomass .

Explanation:

If this help you then mark me as a brainliest

Which location in the diagram above is the Southern Hemisphere experiencing summer?

Location A

Location B

Location C

Location D

Answers

Answer:

location a

Explanation:

Answer:

Location B

Explanation:

Look at diagram 1 above. What type of eclipse is shown based on the alignment of the Earth, Sun, and Moon?

Solar eclipse

Lunar eclipse

Answers

Lunar eclipse. Because the second diagram has the moon blocking the sun and that’s solar eclipse. So it has to be lunar eclipse please mark Brainliest

An image of Earth's layer is above.

Which layer is the most dense?

layer A

layer B

layer C

layer D

Answers

Answer:

Layer D

Explanation:

Earth's interior layers are ordered by density. The densest layer is the solid metal inner core, the mantle is of intermediate density, and the least dense layer is the lithosphere, particularly the continental lithosphere.

What is the quantum mechanical electron configuration of arsenic?

Answers

Answer:

After the 4s sublevel is filled with two electrons, ten electrons fill the 3d sublevel, which is slightly higher in energy than the 4s sublevel. After the 3d sublevel is filled, the remaining three electrons will be in orbitals in the 4p sublevel. Thus, the electron configuration for arsenic is [Ar] 4s(2 squared) 3d(10 squared) 4p(3 squared).

Electron configuration of Arsenic is [Ar] 3d10 4s2 4p3. Possible oxidation states are +3,5/-3.
Hope this
Helps
You

What type of element are the following elements?

A) Na
B) Со
C) Bi
D) O

Answers

Na= sodium
Co=cobalt
Bi=bismuth
O= oxygen

Which new item, if added to the density
column, would settle and stay right in the
green dyed water layer
a. Charcoal = 0.56 g/mL
b. Glass = 1.40 g/mL
c. Paperclip = 1.00 g/mL
d. Thumbtack = 1.9 g/

Answers

Answer:

example:

a

Explanation:

bicuse its true colum

You have a gas sample of carbon dioxide at 298 K. If the pressure is 0.827 atm what is the pressure in mmhg

Answers

Answer:

628.520 mmHg

Explanation:

1 atm = 760 mmHg

[tex](760 \div 1) \times 0.827[/tex]

The pressure of 0.827 atm in mmHg is 628.52 mmHg

Pressure has various units of measurement such as atmosphere (atm), pascal, mmHg, Newton per square metre (N/m²) etc. These units can be converted from one to the other.

Considering the question given above, we can convert 0.827 atm to mmHg as illustrated below:

1 atm = 760 mmHg

Therefore,

0.827 atm = 0.827 × 760

0.827 atm = 628.52 mmHg

Thus, 0.827 atm is equivalent to 628.52 mmHg

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which of the following oxides will react with magnesium most readily when both are heated?
A.zinc oxide
B. copper(2) oxide
C.lead (2) oxide
D. aluminum oxide​

Answers

Answer:

None of the above

Explanation:

• This is because all the metal oxides provided are below magnesium in the reactivity series.

[ pic attached ]

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Si a un resorte se le cuelga una masa de 800 g y se deforma 50 cm. ¿Cuál será el valor de su constante en N/m? (g = 9.81m/s2).

Answers

Answer:

50cm

Explanation:

because thats the only thing i got

4
Select the correct answer.
Which statement best describes how chemical equations demonstrate conservation of mass?
O A.
The number of reactants is the same as the number of products.
O B.
The compounds are the same on each side of the reaction.
O c.
The number of atoms of each element is the same on each side of the equation.
OD.
The state of matter is the same on each side of the equation.

Answers

Answer:

C. The number of atoms of each element is the same on each side of the equation.

Explanation:

[tex].[/tex]

1. What process occurs along divergent plate boundary?

2. What geologic features formed when two plates moved away from each other?
3. Compare rift valley from mid-ocean ridge. Explain your answer. PIVOT 4A CALABARZON 24​

Answers

Answer:

1. Earthquakes and Eruptions (volcanoes)

2. Divergent plate boundary

3. Apart from a widening valley, it equally contributes to steep mountain sides spreading. A mid-oceanic ridge is naturally produced if two oceanic plates naturally start moving away from each other.

Explanation:

1. When a divergent boundary occurs beneath oceanic lithosphere, the rising convection current below lifts the lithosphere, producing a mid-ocean ridge. Extensional forces stretch the lithosphere and produce a deep fissure. When the fissure opens, pressure is reduced on the super-heated mantle material below. It responds by melting, and the new magma flows into the fissure. The magma then solidifies and the process repeats itself.

2. When two plate diverge from each other also known as divergent (di-apart, vergere- to inclined) plate margin .

Two plate diverge along oceanic ridges where new lithosphere is created.

Now come to the main point: Geological Features

When two oceanic plate diverge then new sea floor is created by a process called sea floor spreading and features like Mid oceanic ridges, volcanoes & Young lava flows forms. Ex. East Pacific Rise, Mid-Adlantic Ridge.

When two continental plates diverge by continental rifting then features like Rift valley, volcanoes are found. Ex of continent continent -East Africa rift vally, Red sea.

3. The major difference between different types is what type of plate the divergent boundary is between. If the boundary is found between two continental plates you are left with a rift valley. ... If two oceanic plates begin moving away from each other it creates a mid-oceanic ridge.

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