We apply the same amount of energy to 10.0-g samples of aluminum, iron, and silver which begin at the same temperature. Rank the metals from highest to lowest temperature after the heat is applied

Answers

Answer 1

Answer:

Ag > Fe > Al

Explanation:

The values of the specific heat capacity of the elements are given as;

Aluminum = 0.897 J/g*K  

Iron=0.449 J/g*K  

Silver=0.235 J/g*K

Specific heat capacity basically refers to how much heat is required to change the temperature of a unit mass of a substance by a degree. Elements with high specific heat capacity would require higher energy compared to elements with lower values,

Aluminium (Al) has the highest specific heat capacity, hence it wold require more energy to cause a change in temperature. Aluminium would be the lowest.

Silver (Ag) has the lowest specific heat capacity hence it would require less energy to cause a change in temperature. Silver wold be the highest.

The middle would be iron (Fe).

The rank is given as;

Ag > Fe > Al


Related Questions

Calculate the number of moles in 7g of nitrogen gas​

Answers

Answer:

0.2498mol[tex]N_{2}[/tex]

Explanation:

7gN2 x [tex]\frac{1 mol}{2(14.01) g}[/tex]

=0.2498mol N2

Nitrogen gas has the formula [tex]N_{2}[/tex] so therefore that means you would have to multiply the mass in the molar by 2. To solve for the number of moles you need to cancel out the grams, you do this by using the molar mass of nitrgoen gas. You get the value on in the denominator from the periodic table (atomic mass of element). The grams will cancel out, leaving you with the number of moles when you divide 7/2(14.01).

which atom or ion is the largest?
A. K
B. K^+
C. Ca
D. CA^2+
E. Li

Answers

Answer:

A

Explanation:

A. The K atom is the largest

3.04 Quiz: Chemical Reactions
Word bank please help fill.

Answers

Answer:

1. Chemical reactions

2.Substances

3. Properties

4. Precipitate

5. Light

6. Temperature

7. Color

8. Gas

Explanation:

During chemical reactions, new substances that possess new properties are formed. During the process of chemical reactions, evidences are found. Some of the evidences are formation of precipitate or light gel, production of gases and changes in colour and temperature.

Chemical reactions start with the substances or compounds which are known as reactants. The reactants react to form new substances known as the products which possess new properties.

help me please!

Thermal energy can come from other forms of energy. Give several examples how.

i'm getting graded for this!!!

Answers

good luck kid, now mark me brainliest

which of the following is an oxyanion?

Answers

Answer:

please give the answer choice.

How many moles are in 68 grams of copper (II) hydroxide, Cu(OH)2

Answers

heres your answer mate...

What is the energy of the photons of a laser with a frequency of 5.75 x 10^12 Hz? (Hint: Remember to round your answer to the lowest number of significant figures.)

Planck's Constant =6.626 X 10^-34
Energy of a photon = Plancks constant x Frequency

Answers

Answer:

E = 3.81×10 ⁻²¹ J

Explanation:

Given data:

Frequency of photon = 5.75 ×10¹² Hz

Plancks constant = 6.626 ×10⁻³⁴ Js

Energy of photon = ?

Solution:

E = h×f

E = 6.626 ×10⁻³⁴ Js ×  5.75 ×10¹² s⁻¹

E = 38.1×10 ⁻²² J

E = 3.81×10 ⁻²¹ J

Biologists designed an experiment to test the effect of compost on the development of root crops. They tested several different crops, including carrots, potatoes, beets, and onions. They grew most of the plants in the greenhouse, but due to space issues, they had to grow some outdoors. They gave all the plants the same amount of compost. They obtained the compost from a local farmer and from the local hardware store. They ran out of the farmer’s compost, so some of the plants received that compost when the seeds were planted and other plants got hardware store compost after the plants had already started growing.

RESULTS: Some of the roots seemed really big. Other roots seemed normal or small.

CONCLUSION: They couldn’t tell what the effect of the compost was because the results were inconsistent.

What are five problems with this experimental design that could have caused inconsistent results?

Answers

Answer:

it is 56

Explanation:

Answer:

one of the problems are that sum of the plants weren't getting the same kind of compost the second issue is that they couldn't fit all the plants into the greenhouse third issue issue was that some plants got compost when planted but what about the others

I got this answer from one of the WRONG answers. This was in the comments. So thanks to them!

Which of these are significant problems with bottled water?

Immense plastic use
Fossil fuel used to transport water
Water bottles can leach toxics into water
All of the above

Answers

Answer:

All the above

Explanation:

All the above

27. The fundamental SI unit of length is the meter. How-

ever, we often deal with larger or smaller lengths or

distances for which multiples or fractions of the fun-

damental unit are more useful. For each of the fol-

lowing situations, suggest what fraction or multiple

of the meter might be the most appropriate mea-

surement.

a. the distance between Chicago and Saint Louis

b. the size of your bedroom

c. the dimensions of this textbook

d. the thickness of a hair

Answers

Answer:

A) Km

B) m

C) cm

D) mm

Explanation:

A) The distance between Chicago and Saint Louis is quite a distance and would be best presented in the largest multiple of the SI unit of length.

For example if the distance is 500000 m, it's a bit bogus to write, so we can simplify by writing in terms of 10^(-3) m which is in km.

Thus, we can write as 500000 × 10^(-3) km = 500 km

B) By standard measurement, the size of a bedroom is usually: 3.6 m × 3.6 m.

This not complex to write and can be kept as it is in metres.

C) The average dimension of a textbook is around 0.25 m by 0.2 m.

Let's get rid of the decimal by converting to terms of 10² m which is expressed as cm.

Thus, dimension is now: (0.25 × 10²) by (0.2 × 10²) = 25 cm by 20 cm

D) Average thickness of a hair in metres is 8 × 10^(-5) m.

Now this is a bit long. So we can express is in terms of 10^(3) m which is an expression denoted by millimeter (mm).

Thus, thickness is 8 × 10^(-5) × 10³ = 0.08 mm

Which is the best example and explanation that a physical change has occurred?

Answers

Rip King von like to send love to their family 63-63= von

Which event most likely occurs at point V?

cooling
erosion
heating
melting



I will mark Brainlyest and 20 points

Answers

[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Geography.

Answer is 1.) Cooling.

On cooling of magma, we get the hardened igneous rocks in the nature.

Answer:

Cooling

Explanation:

I did quiz

Why is it that no two elements have the exact same emission spectrum?​

Answers

Answer:

When atoms are excited they emit light of certain wavelengths which correspond to different colors. Each element produces a unique set of spectral lines. Since no two elements emit the same spectral lines, elements can be identified by their line spectrum.

Explanation:

observe the long-term effects OT erosion on
1.
Click Play ( )). Wait for about 20,000 simulated years, then click Pause ( 1 ). If you want,
you can drag the landscape to rotate the view. How much does the landscape change?

Answers

Several erosive agents affect the soil structure and composition. Selecting sandstone, 100cm/yr precipitation, 20ºC, and 50% vegetation cover, there is 45% of eroded rock. The general landscape appearance changes little.

Erosion

Erosion is the process of fertile soil loss.

It is due to several external agents that damage the ground and drag the exposed material from the superficial layer of the earth.

Erosive agents

Some of the erosive agents are water, wind, ice, gravity, or animal trampling.

Phases

Three main phases compose the erosion process

a) particles landslide

b) transport of superficial free particles

c) deposit/sedimentation.

Soil erosion leads to its degradation.

Since its regeneration is extremely slow, erosion produces several negative events that lead to soil loss as a non-renewable natural resource.

Vegetation cover

All the erosive agents act together modifying the soil composition, shape, and structure. The loss of plant cover increases, even more, the erosive effects.

Soil vegetation cover reduces erosion because the aerial part of the plant protects the surface, while roots protect the ground structure and retain water.

The less vegetation cover there is, the more exposed the soil is, and the more severe effects the erosive agents cause.

In the exposed example, we have many variables to control and analyze their effect on soil erosion. Before playing the simulation, I chose the followings

Stones ⇒ sandstone Precipitation ⇒ 100 cm/yrTemperature ⇒20 ºCVegetation cover ⇒ 50%

Under these conditions, after 20,000 years there was 0.42 km³ of eroded rock.

The general aspect of the landscape changed very little, suggesting that erosion occurs slowly.

Probably, if we change the values of the variables, we will observe a sharper change. For instance, if we take the vegetable cover to less than 20% and increase the levels of precipitation and temperature, we will observe a faster erosion process and a wider affected area.

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When you have been swimming and you come out of the pool, you may feel cold. Use your understanding of endothermic processes to explain why?​

Answers

Answer:

An endothermic process is any process with an increase in the enthalpy H (or internal energy U) of the system. In such a process, a closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system.

Which of the following is true about a hypothesis that is proven to be inaccurate? WILL GIVE BRAINLIEST FOR CORRECT ANSWER!!

A. An inaccurate hypothesis is not valuable.

B. It allows the scientist to eliminate any possibility of a relationship between two variables.

C. It will provide information to help formulate a new hypothesis in the future.

D. It proves that the exact opposite of the hypothesis is true.

Answers

Answer:

C. It Will Provide information to help formulate a new hypothesis in the future.

Explanation:

I had AP Chemistry.

The following statement that it will provide information to help formulate a new hypothesis in the future is  true about a hypothesis that is proven to be inaccurate.

What is hypothesis?

Hypothesis can be defined as an assumption which is made for the sake of argument . It is an interpretation of a practical condition for which action needs to be taken.It is defined as a tentative assumption which is made to test logical consequences.It is an antecedent clause of a statement which is conditional.

It is constructed before research. There are six types of hypothesis 1)simple hypothesis 2) complex hypothesis 3) directional hypothesis 4)non-directional hypothesis 5) null hypothesis 6)casual hypothesis

The hypothesis should be clear and precise, it must be specific and way of explanation of hypothesis should be simple.

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HELP PLEASE ANSWER ASAP!!!!!

When atoms react, they often lose, gain, or share electrons to form a more stable version of themselves. For example, alkali metals such as sodium (Na) lose their outer shell electron in their reactions to form compounds. The electron configuration of alkali metals would then resemble those of which group of the periodic table in the compounds they form?


a. 7A or group 17
b. 8A or group 18
c. 2A or group 2
d. 1A or group 1

Answers

Answer:

D

Explanation:

The formula for calculating density, D, is D=MV, where M represents mass and V represents volume. For liquids, volume is often given in cubic centimeters (cc), which is the same as cm 3. If the density of an unknown liquid is 1.6 g/cc, what is the mass of 800 cc of the unknown liquid in grams (g)? 0.002 g 1.6 g 500 g 1280 g
please anwser asap!!!!!!!

Answers

Answer:

500g

Explanation:

Just divide by all the numbers and the one that equals 1.6 is the answer

A gas occupies a volume of 0.444 L at 0.00C and
79.00 kPa. What is the final Kelvin temperature when
the volume of the gas is changed to 1880. mL and the
pressure is changed to 38.70 kPa?
Include unit of measurement and use proper
significant figures.

Answers

Answer:

The final temperature is 566°K

Explanation:

Given

V1 = 0.444L

T1 = 0.00°C

P1 = 79.00 kPa

V2 = 1880mL

P2 = 38.70 kPa

Required

Determine the final temperature of the gas

To answer this, we make use of idea gas law equation.

This is:

(P1V1)/T1 = (P2V2)/T2

Convert V1 to mL

V1 = 0.444L

V1 = 0.444 * 1000mL

V1 = 444mL

Convert T1 to Kelvin

T1 = 0.00°C

T1 = 0.00 + 273K

T1 = 273K

Substitute these values in the given equation.

(P1V1)/T1 = (P2V2)/T2

(79 * 444)/273 = (38.70 * 1880)/T2

35076/273 = 72756/T2

Cross Multiply

35076 * T2 = 273 * 72756

35076T2 = 19862388

Make T2 the subject

T2 = 19862388 ÷ 35076

T2 = 566K (approximated)

Hence, the final temperature is 566°K


A 1.5 m block of tungsten has a mass of 28 875 kg.
Write down the equation that links density, mass and volume.

Answers

Explanation:

Density is an intensive property of any matter. Any given pure sample of a substance will have the same density value.

Density is the mass per unit volume of a compound;

  Mathematically;

    D = [tex]\frac{M}{V}[/tex]  

where M is the mass

          V is the volume

          D is the density

Which term refers to the ability to do work? O energy O power force O motion
Please I have a 50 question Exam ​

Answers

Answer:

the correct answer in energy

Explanation:

The term refers to the ability to do work is energy. The correct option is A.

What is energy?

Energy is the quantitative property that is required by the body to do some work. It is a conserved quantity, but can not be created or destroyed.

Animals and plants get energy from food.

Thus, the correct option is A. energy.

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Suppose someone claims they have invented a new automobile engine that can produce more energy than is found in the fuel used to run it. Apply scientific principles to evaluate the person's claim.

Answers

Answer:

See explanation

Explanation:

According to the second law of thermodynamics, the conversion of energy  from one form to another is never hundred percent efficient. Some energy is always lost as energy is transformed from one form to another.

When a fuel is used to run an automobile engine, chemical energy from the fuel is converted into to the mechanical energy of the automobile. This energy conversion can never be hundred percent efficient in accordance with the laws of thermodynamics. Some energy is always lost as heat.

Hence, the engine does not even efficiently convert all the chemical energy available in the fuel. Therefore, it is impossible to find an automobile engine that can produce more energy than the fuel used to run it.

Which element would have chemical reactions most similar to fluorine (F)?
A. O
B. Br
C. Ne
D. Fm
giving brainliest if right

Answers

[tex]\mathrm {Hey, there!}[/tex]

The answer is: Bromine

Oxygen is not similar to flourine, it is not a noble gas with high ionization.

Neon does not have chemical reactions like flourine.

The answer is Bromine! Best of Luck!

Answer:

Br

Explanation:

If he soundwave is producing sound with the steady pitch and is vibrating with a frequency of six waves per second then how many ways will be produced in four seconds

Answers

Answer:

n = 24 waves

Explanation:

As, the sound is produced with a steady pitch. Therefore, it means that there is no change in the pitch with respect to time. Hence, we can work with the following formula for frequency:

υ = n/t

where,

υ = frequency of sound wave = 6 waves/s

n = no. of waves = ?

t = time interval = 4 s

Therefore, using these values in the equation we get:

6 waves/s = n/4 s

n = (6 waves/s)(4 s)

n = 24 waves

Dry ice is a form of carbon dioxide that sublimates at room temperature. At a Halloween party, some students noticed that the dry ice underwent a phase change. Which statement below best describes the change in the energy and physical characteristics of the molecules of carbon dioxide during this process?

A. The molecules experienced a physical change from a gaseous state to a liquid state, releasing energy into the environment and reducing the molecular movement.
B. The molecules experienced a chemical change as the carbon dioxide reacted with oxygen, which released oxygen gas into the environment and increased the molecular movement.
C. The molecules experienced a physical change from a solid state to a gaseous state, which increased the molecular movement and the energy of the carbon dioxide molecules.
D. The molecules experienced a chemical change from a liquid state to a solid state, which reduced the amount of energy between the carbon dioxide molecules and decreased the molecular movement.

Answers

Answer:

The molecules experienced a physical change from a solid state to a gaseous state, which increased the molecular movement and the energy of the carbon dioxide molecules

brainliest

The statement which best describes the change in the energy and physical characteristics of the molecules of carbon dioxide during this process is (B) The molecules experienced a chemical change as the carbon dioxide reacted with oxygen, which released oxygen gas into the environment and increased the molecular movement.Hence, The correct option is (B)

What is Physical Change ?

Physical changes are those that affect a chemical substance's form but not its chemical content.

Physical changes may normally be used to separate compounds into chemical elements or simpler compounds, but they cannot be used to separate mixtures into their component compounds.

A change in physical attributes accompanies a physical change. Melting, turning into a gas, and changing strength are a few examples of physical qualities.

Therefore, molecules of carbon dioxide during this process is (B) The molecules experienced a chemical change as the carbon dioxide reacted with oxygen, which released oxygen gas into the environment and increased the molecular movement.Hence, The correct option is (B)

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Which of the following trends decrease down group 1 from Li → Cs?
I. melting point
II. jonization energy
III. atomic radius
A.
I and II only
B.
II and III
C.
II and IIl only

D.
I and III only

Answers

Answer:

A.  I and II only

Explanation:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

Melting point also goes to decreases because there is large distance between the positive nucleus and bonded electrons thus overall attraction goes to reduced and less energy is required to melt.

Someone knows how to solve this? It was found that 0.0005 mol of Ca (OH) 2 dissolved in 100 cm3 of solution is 80% dissociated. Calculate the pH of this solution.

Answers

Answer:

pH = 11.9

Explanation:

First, we determine the number of OH⁻ moles dissolved:

80% of Ca(OH)₂ is dissolved:

0.0005 mol * 80/100 = 4x10⁻⁴ mol Ca(OH)₂

There are two OH⁻ moles per Ca(OH)₂ mol:

4x10⁻⁴ * 2 = 8x10⁻⁴ mol OH⁻

Now we can calculate the molar concentration of OH⁻ (moles/L):

100 cm³ = 100 mL100 mL ⇒ 100/1000 = 0.1 L[OH⁻] =  8x10⁻⁴ mol / 0.1 L = 8x10⁻³ M

Then we calculate the pOH of the solution:

pOH = -log[OH⁻] = -log(8x10⁻³ M) = 2.10

Finally, we can calculate the pH of the solution using the equation

pH + pOH = 14pH = 14 - pOH = 14 -2.10pH = 11.9

What is the Molecular mass of sodiumcholoride ?​

Answers

Answer:

58.5g/mol

Explanation:

Given substance:

 Sodium chloride  = NaCl

Unknown:

Molecular mass = ?

Solution:

The molecular mass of a compound is the gram-formula mass or gram-molecular weight of the compound.

It is determined by adding its component atomic masses and then express in grams per mole;

Atomic mass of Na = 23g

Atomic mass of Cl = 35.5g

 NaCl  = 23 + 35.5  = 58.5g/mol

What determines the appearance of the moon from earth?

Answers

It’s determined by the phases of the Moon, and the positions of the Moon. The Moon’s phase only really depends only on its position relatively Earth an the Sun.

To solve this we must be knowing each and every concept related to satellite. Therefore,  moon phases and moon placements have a role the appearance of the moon from earth.

What is satellite?

Any object that circles a planet in a curved route is considered a satellite. There are several man-made (manufactured) satellites, most of which are closer to Earth than the moon, which is Earth's original natural satellite.

We must revisit our buddy Newton in order to comprehend why satellites move in this manner. Gravity, according to Newton, is a force that unites all of the universe's objects. Moon phases and moon placements have a role in determining this. The only major factor affecting the Moon's phase is where it is in relation to Earth and the Sun.

Therefore,  moon phases and moon placements have a role the appearance of the moon from earth.

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1. How many valence electrons does lodine
have?

Answers

lodine has 7 valence electron
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