Lab: Thermal Energy Transfer
Directions

What is the purpose of the lab, the importance of the topic, and the question you are trying to answer?






Section III: Analysis and Discussion



What do the key results indicate?





























If you constructed graphs, what trends do they indicate in your data?

















Were there any problems with the experiment or the methods? Did you have any surprising results?









Section IV: Conclusions



What do the results tell you about your hypothesis(es)?









How do the data support your claim above?



















If you could repeat the experiment and make it better, what would you do differently and why?

Answers

Answer 1

Answer:

What do the key results indicate?

Key Results are the measures and milestones that indicate how you know you will accomplish our Objective.

If you constructed graphs, what trends do they indicate in your data?

A linear pattern is a continuous decrease or increase in numbers over time. On a graph, this data appears as a straight line angled diagonally up or down (the angle may be steep or shallow). So the trend either can be upward or downward.

Were there any problems with the experiment or the methods? Did you have any surprising results?

Yes, i was surprised and learn so much and it was no problem.

Section IV: Conclusions

What do the results tell you about your hypothesis(es)?

Results will tell you which hypothesis is true

How do the data support your claim above?

describe specific part of the procedure.

If you could repeat the experiment and make it better, what would you do differently and why?

If I were able to repeat the lab and do it differently I would try to do two different things to improve it. I would try to create the model in a simpler manner that allowed me to better see how the erosion factored in. I would also try to take more detailed notes on it if I were to repeat it.

Explanation:


Related Questions

If I initially have a gas at a pressure of 1260 kPa, a volume of 23 liters, and a temperature of 200 K, and
then I raise the pressure to 1595 kPa and increase the temperature to 300 K, what is the new volume of
the gas?

Answers

P1 x V1 P2 x V2
______ = ________
T1 T2

1260 x 23 / 200 = 144.9

1595x V/300

144.9= 1595x V/300
144.9 x 300/1595 = v
27.25 litres
I think

what is the symbol of gold ​

Answers

Explanation:

Tha Symbol of gold is Au.

Answer:

symbol of gold is Au

------------------------------------------------

PLEASE HELP QUICKLY!!
I know it's not A or B; I just can't figure it out between C and D.
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What will most likely happen when a component is added to a reaction system at equilibrium?

A. The system will be unaffected by stress.
B. The addition of a catalyst will change the equilibrium.
C. The equilibrium position will shift away from what was added to lower its concentration.
D. The equilibrium position will shift away from what was added to increase its concentration.

Answers

Answer:

c: The equilibrium position will shift away from what was added to lower its concentration.

Explanation:

Answer: C. The equilibrium position will shift away from what was added to lower its concentration.

Explanation:

If we have a system that is already in equilibrium, the addition of an extra amount of one of the reactants or one of the products throws the system out of equilibrium. Either the forward or the reverse reaction will then occur to restore equilibrium conditions.

Select the correct structure that
corresponds to the name.
4-bromo-5-chlorocyclohexene

Answers

Answer: a

Explanation:

What type of cell can pass a DNA mutation to an organism's offspring?
A. sex cell
B. skin cell
c. nerve cell
D. red blood cell

Answers

The answer should be sex cell.

Which is a physical change? A) Rusting iron B) Burning paper C) Reacting baking soda and vinegar D) Separating a mixture of salt and wat

Answers

Answer:

D

Explanation:

In an alternation of generations life
cycle, the gametophyte is part of which
generation?

Answers

Answer:

The sexual phase, called the gametophyte generation, produces gametes, or sex cells, and the asexual phase, or sporophyte generation, produces spores asexually. In terms of chromosomes, the gametophyte is haploid (has a single set of chromosomes), and the sporophyte is diploid (has a double set

Answer:

Gametophyte generation

Solve for T in the ideal Gas Law!!!!!!

Answers

Answer:

T=PV/nR

Explanation:

PV=nRT then you just move them

Here is the answer of your question please mark me as brainlest

What are the three parts of modern cell theory. Choose all that apply.
A.) The cell is the smallest living unit in organisms


B.) All cells come from other pre-existing cells


C.) All living things are made of cells


D.) All organisms are multicellular

Answers

Answer:

a,b,c

Explanation:

Answer:

C

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

Give reasons why an element can be broken down...pls explain widely​

Answers

Elements cannot be broken down into another substance.

Help needed ASAP, I will mark your answer as brainly.

Answers

Answer


E. 21.3mmHg is the right answer


How many moles of hydrogen gas
are produced when 3.8 moles of HCI
are reacted?
O 1.9 mol

Answers

1.9 mol H2.
3.8 mol HCl * (1 mol H2 / 2 mol HCl) = 1.9 mol H2

Someone help me with this question please

Answers

Answer:

step 2

Explanation:

ofcourse rocks dont melt

maybe lol

Give three examples of energy traveling in waves

Answers

Answer:

ELECTROMAGNETIC SPECTRUM. Radios, televisions, mobile phones, and radar use signals made up of electromagnetic waves. These are waves that carry energy as electricity and magnetism at the speed of light. Light we can see is also an electromagnetic wave, but other types of electromagnetic wave are invisible.

Explanation:

~Hope this helps

is a shark asexual, sexual, or both

Answers

Answer:

Both

Explanation:

Please mark brailiest

Answer:

A shark is both

Explanation:

Type the correct answer in the box. Express your answer to three significant figures. Iron(II) chloride and sodium carbonate react to make iron(II) carbonate and sodium chloride: FeCl2(aq) + Na2CO3(s) → FeCO3(s) + 2NaCl(aq). Given 1.24 liters of a 2.00 M solution of iron(II) chloride and unlimited sodium carbonate, how many grams of iron(II) carbonate can the reaction produce? The reaction can produce grams of iron(II) carbonate.

Answers

Answer:

Explanation:

To solve this problem we have to find the moles of iron(II) chloride that react. Using the chemical equation, we can kknow moles FeCl2 = Moles FeCO3. Thus, we can find the moles of FeCO3. Converting these moles to grams using its molar mass -Molar mass FeCO3: 115.854g/mol-

Moles FeCl2 = Moles FeCO3:

1.24L * (2.00mol / L) = 2.48 moles FeCl2

Mass FeCO3:

2.48mol * (115.854g / mol) =

The reaction can produce 287 grams of iron(II) carbonate

Answer:

its 287

Explanation:

i got it right on edm

During a combustion reaction, 9.00 grams of oxygen reacted with 3.00 grams of CH4.

What is the amount of the leftover reactant?

0.74 grams of methane
0.89 grams of methane
1.22 grams of oxygen
1.45 grams of oxygen

Answers

Answer:

0.74

Explanation:

this is the correct answer. I followed a correct answer that had the same probelm with different values, swithxed it with mine, and got 0.75. So its basically 0.74

On a hot day, a 15.0 kg window increased from 20.0 degrees C to 26.7 degrees C. How much heat energy did the glass window absorb? (specific heat of glass = 0.840 J/gC)

Answers

Answer: The heat energy absorbed by the glass window is 84420 J.

Explanation:

Given: Mass = 15.0 kg (1 kg = 1000 g) = 15000 g

Specific heat capacity = [tex]0.840^{o}C[/tex]

Initial temperature = [tex]20^{o}C[/tex]

Final temperature = [tex]26.7^{o}C[/tex]

Formula used to calculate heat energy is as follows.

[tex]q = m \times C \times (T_{2} - T_{1})[/tex]

where,

q = heat energy

m =  mass of substance

C = specific heat capacity

[tex]T_{1}[/tex] = initial temperature

[tex]T_{2}[/tex] = final temperature

Substitute the values into above formula as follows.

[tex]q = m \times C \times (T_{2} - T_{1})\\= 15000 g \times 0.840J/g^{o}C \times (26.7 - 20.0)^{o}C\\= 84420 J[/tex]

Thus, we can conclude that heat energy absorbed by the glass window is 84420J.

Which statement is true in comparison to a weak acid, a strong acid
has a larger ph than weak acids
is more concentrated than we gases
strong acids produced less H plus ions is mostly H plus ions in solution

Answers

Answer: Strong acid vs weak acid

Strong acids and strong bases refer to species that completely dissociate to form ions in solution.

Explanation: By contrast, weak acids and bases ionize only partially, and the ionization reaction is reversible. Thus, weak acid and base solutions contain multiple charged and uncharged species in dynamic equilibrium.

10 points! Please help if you know the answer I need to get 100% on this test :)

Answers

Answer:

Metal has an high capacity, which allows it to heat up faster and transfer the heat to the contents of the pot or pan.

Explanation:

Because metal pots are made from a narrow range of metals because pots and pans need to conduct heat well.

Mr. Ragusa is approached in his lab by one of his students named Hassan. Hassan had found a bottle of nitric acid that did not have a labeled molarity and wanted Mr. Ragusa to help him find it's molarity. Mr. Ragusa filled a buret to 4.85 mL with 0.30 M NaOH. Mr. Ragusa added 5 mL of the acid to a flask and added some phenolphthalein. Mr. Ragusa hit the titration spot on, and the final volume in the buret was 43.69 mL. What is the concentration of the Nitric Acid?
Round your answer to 2 decimal places. Include a unit in your answer. (ex: 1.2M)
HNO3 + NaOH --> NaNO3 + H2O

Answers

Answer:

2.33M

Explanation:

1. First, make sure the equation is balanced. In this case it would be HNO3+NaOH --> NaNO3 + H2O. (it is already balanced here.)

2. Find the initial volume, final volume, the volume of acid, volume of NaOH.

      a. Initial Volume: 4.85 mL

      b. Final Volume: 43.69

      c. Acid (HNO3) Volume: 5 mL

      d Volume NaOH: Initial V - Final V --> 43.69 mL - 4.85 mL = 38.84 mL NaOH

3. Find moles of NaOH reacted using the volume from D. Convert this volume into Liters. Multiply the volume of NaOH by molarity of NaOH given to you before. (.30 M NaOH)

      a. x mol NaOH/ .03884 L = .30 mol NaOH/ 1 mol = .011652 mol NaOH

4. Now find the moles of acid. The acid given to you in the equation is HNO3. The .011652 mol NaOH is from the moles reacted that you just found. The moles on the right side would be the co-efficient in front of the elements in the equation. Since this equation does not have any coefficients (it's already balanced), it would just be 1.

      a.  .011652 mol NaOH/ x mol HNO3 = 1 mol NaOH/ 1 mol HNO3.

                       x = .011652 mol HNO3

5. Now find the concentration, also known as molarity. Divide the .011652 mol by the volume of acid you have been given (5 mL). Before using 5 mL, divide it by 1000 to get the Liter form.

     a. .011652 mol HNO3/ .005 L = 2.3304 M HNO3

I hope you understand now. God bless!

71.1 mL of 0.695M rubidium hydroxide neutralized 89.7mL of sulfuric acid and solution of unknown concentration. Find the concentration of the acid

Answers

Answer: Concentration of the acid is 0.551 M.

Explanation:

Given: [tex]V_{1}[/tex] = 71.1 mL,      [tex]M_{1}[/tex] = 0.695 M

[tex]V_{2}[/tex] = 89.7 mL,           [tex]M_{2}[/tex] = ?

Formula used to calculate the concentration of acid is as follows.

[tex]M_{1}V_{1} = M_{2}V_{2}[/tex]

Substitute the values into above formula as follows.

[tex]M_{1}V_{1} = M_{2}V_{2}\\0.695 \times 71.1 mL = M_{2} \times 89.7 mL\\M_{2} = 0.551 M[/tex]

Thus, we can conclude that concentration of the acid is 0.551 M.

What does atom mean
A.)Consists of only electrons
B.)The smallest part of matter still retaining chemical properties
C.)Consists of only protons and neutrons
D.)Composed of two or more separate elements

Answers

Answer:

B). The smallest part of matter still retaining chemical properties.

What type of reaction occurs when one element or ion within a compound is exchanged with another element or ion?
combustion
decomposition
single-displacement
double-displacement

Answers

Answer:

When an element replaces another in aone element or ion within a compound is exchanged with another element or ion , the reaction is called 

single-displacement

A student carried out a titration using HC2H3O2(aq)HC2H3O2(aq) and NaOH(aq)NaOH(aq). The net ionic equation for the neutralization reaction that occurs during the titration is represented above. The NaOH(aq)NaOH(aq) was added from a buret to the HC2H3O2(aq)HC2H3O2(aq) in a flask. The equivalence point was reached when a total of 20.0mL20.0mL of NaOH(aq)NaOH(aq) had been added to the flask. How does the amount of HC2H3O2(aq)HC2H3O2(aq) in the flask after the addition of 5.0mL5.0mL of NaOH(aq)NaOH(aq) compare to the amount of HC2H3O2(aq)HC2H3O2(aq) in the flask after the addition of 1.0mL1.0mL of NaOH(aq)NaOH(aq), and what is the reason for this result

Answers

Answer:

The amount of HC₂H3₃2(aq) in the flask after the addition of 5.0mL of NaOH(aq) compared to the amount of HC₂H₃O₂(aq) in the flask after the addition of 1.0mL is much smaller because more HC₂H₃O₂(aq) is required to react with 5.0 mL NaOH than with 1.0 mL NaOH.

Explanation:

Equation of the reaction between acetic acid, HC₂H₃O₂(aq) and sodium hydroxide, NaOH(aq) is given below:

CH₃COOH (aq) + NaOH (aq) ----> CH₃COONa (aq) + H₂O

The equation of the reaction shows that acetic acid andsodium hydroxide will react in a 1:1 ratio

Since the concentration of NaOH was not given, we can assume that the concentration is 0.01 M

Moles of NaOH in 5.0 mL of 0.01 M NaOH = 0.01 × 5/1000 = 0.00005 moles

Moles of NaOH in 1.0 mL of 0.01 M NaOH = 0.01 ×1/1000 = 0.0001 moles

Ratio of moles of NaOH in 5.0 mL to 1.0 mL = 0.00005/0.00001 = 5

There are five times more moles of NaOH in 5.0 mL than in 1.0 mL and this means that 5 times more the quantity of HC₂H₃O2(aq) required to react with 1.0 mL NaoH is needed to react with 5.0 mL NaOH.

Therefore, the amount of HC₂H₃O2(aq) in the flask after the addition of 5.0mL of NaOH(aq) compared to the amount of HC₂H₃O₂(aq) in the flask after the addition of 1.0mL is much smaller because more HC₂H₃O₂(aq) is required to react with 5.0 mL NaOH than with 1.0 mL NaOH.

Need this asap!!!

Which type of substance gives off hydroxide ions when dissolved in water?
Acid
Base
Gas
Metal

Answers

Answer:

Acid

Explanation:

A compound that produces hydroxide ions when dissolved in water is a base i believe

7. When a log is thrown on a fire it seems to lose weight; what happens to its physical mass?
a. It disappears
b. It is released into the air
C.
It becomes energy
d. The log does not change weight or size

Answers

Answer:I think it would be D.

Explanation:The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.

Which species is the reducing agent in a redox reaction? Chem is hard​

Answers

Answer:

The species that furnishes the electrons is called the reducing agent. In this case, the reducing agent is zinc metal.

Explanation:

Hopes this helps. Mark as brainlest plz!

In a redox reaction, the species which is oxidized acts as the reducing agent.

In a redox reaction, The substance losing electrons is the reducing agent and is being oxidised. The substance that gains electrons is the oxidising agent and is being reduced.

An oxidising agent isdefined as a substance that causes oxidation by accepting electrons and thus becoming reduced.

A reducing agent is defined as a substance that reduces by losing electrons and thus becomes oxidised.

Substances that have the ability to oxidise other substances are referred to as oxidising agents or oxidants

Substances that have the ability to reduce other substances are referred to as reducing agents or reductants.

To know more about Redox reaction

brainly.com/question/13293425

#SPJ2

The question should be

Which species is the reducing agent in a redox reaction?

Which of the following has the most energy?

heat
ultraviolet rays
the color blue
radio waves

Answers

Answer:

C

Explanation:

Ultraviolet rays I believe is the answer








What will the change in temperature be when 90 J are applied to 15 g of gold. (cgold = 0.126 J/g°C)

Answers

Answer:

47.6°C is the change of temperature

Explanation:

To solve this question we must use the equation of specific heat of a material:

Q = m*ΔT*S

Where Q is heat applied = 90J

m is the mass of the substance = 15g gold

ΔT is change in temperature = Our incognite

S is specific heat of the material = 0.126J/g°C for gold

Replacing:

90J = 15g*ΔT*0.126J/g°C

90J/15g*0.126J/g°C = ΔT

ΔT = 47.6°C is the change of temperature

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