Radiation
Project: Solar Cooker

Radiation Project: Solar Cooker
Radiation Project: Solar Cooker
Radiation Project: Solar Cooker

Answers

Answer 1

In the solar cooker, reflective material like aluminum is used to collect and trap the heat from the sunlight while the interior is painted to reduce heat loss.

What is a solar cooker?

A solar cooker is a cooker which uses the energy of sunlight to cook food.

In designing a solar cooker, a solar collector such as reflective material like aluminum is used to collect and trap the heat from the sunlight.

The interior of the cooker is painted black to avoid heat loss by radiation.

Cardboard boxes are used as insulating materials.

In conclusion, a solar cooker is designed to maximize solar energy collected and minimize heat loss.

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Related Questions

A garbage collector collects food wrappers and aluminum cans from a park. what type of waste is the garbage collector collecting?

Answers

Answer:

Explanation:

Food wrappers and aluminium wrappers are widely use for packing various eatable items.

For example, in our homes our mother wraps our food for lunch in aluminium foil.

As it helps in keeping the food warm for hours.

Thus, we can conclude that out of the given options, a packaging waste is the garbage collector collecting.

How many grams of carbon are contained in one mole of C3H8? (Report your
answer to two places past the decimal point. Moodle is looking for a number
only, no units.)

Answers

There are 44 grams of carbon contained in one mole of C3H8. Details about mass can be found below.

How to calculate mass?

The mass of a substance can be calculated by multiplying the number of moles of a substance by its molar mass.

According to this question, one mole of propane (C3H8) was given.

Molar mass of C3H8 = 12(3) + 1(8) = 44g/mol

Mass of C3H8 = 44g/mol × 1 = 44g

Therefore, there are 44 grams of carbon contained in one mole of C3H8.

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Calculate the concentration of H3O ions present in a solution of HCl that has a measured pH of 5.310 .

Answers

[tex]\\ \tt\leadsto -log[H^+]=5.31[/tex]

[tex]\\ \tt\leadsto log[H^+]=-5.31[/tex]

[tex]\\ \tt\leadsto [H^+]=antilog(-5.31)[/tex]

[tex]\\ \tt\leadsto [H^+]=4.89\times 10^{-6}M[/tex]

what are the properties of most transition metals

Answers

Explanation:

The transition metals have the following physical properties in common:

they are good conductors of heat and electricity

they can be hammered or bent into shape easily

they have high melting points (but mercury is a liquid at room temperature)

they are usually hard and tough

they have high densities

The transition metals have the following chemical properties in common:

they are less reactive than alkali metals such as sodium

they form coloured ions of different charges

some are very unreactive (silver and gold)

many are used as catalysts

2. A gas is confined in a syringe. When the volume of the cylinder is 750 L the pressure is
150 kPa. What will the volume of the cylinder be when the pressure has risen to 250
kPa?

Answers

Answer:

450 L

Explanation:

Because you are dealing with pressure and volume, you want to use Boyle's Law to find your missing value. The equation looks like this:

P₁V₁ = P₂V₂

In this equation, "P₁" and "V₁" represent the initial pressure and volume. "P₂" and "V₂" represent the final pressure and temperature. To find the final volume, you can plug the given values into the equation and simplify.

P₁ = 150 pKa             P₂ = 250 pKa

V₁ = 750 L                 V₂ = ? L

P₁V₁ = P₂V₂                                         <----- Boyle's Law equation

(150 pKa)(750 L) = (250 pKa)V₂        <----- Insert variables

112500 = (250 pKa)V₂                       <----- Multiply 150 and 750

450 L = V₂                                         <----- Divide both sides by 250

A 1.50 g sample of a pure compound, containing only carbon and hydrogen, was
combusted in a carbon-hydrogen combustion analyzer. The combustion
produced 2.7 g of water (H₂O) and 4.4 g of carbon dioxide (CO₂.)
Calculate the mass of hydrogen.
Select one:
a. 2.001 g
b. 0.001 g
c.0.302 g
d. 1.192 g

Answers

The mass of the hydrogen is obtained as 0.302 g.

What is the mass of hydrogen?

A hydrocarbon is a compound that contains only carbon an hydrogen. The amount of the carbon and the hydrogen can be found by combustion.

The mass of hydrogen can be obtained as follows;

Number of moles of hydrogen =2.7 g/18 g/mol * 2 = 0.302 moles

Now the mass of hydrogen is obtained from;

0.302 moles * 1 g/mol = 0.302 g

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To be effective, collisions between atoms must occur with the proper orientation and also the proper amount of __.

explosion

matter

energy

catalysis

Answers

To be effective, collisions between atoms must occur with the proper orientation and also the proper amount of energy.

What is the loss of kinetic energy due to the collision?

An inelastic collision is a collision in which there is a loss of kinetic energy. While the momentum of the system is conserved in an inelastic collision, the kinetic energy is not. This is because some kinetic energy has been transferred to something else.

In this case, is necessary have energy to be effective, so collisions between atoms must occur with the proper orientation.

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Answer:

energy

Explanation:

I2 (s) has a very low solubility in H2O (l) because the weak _____ forces between I2 and H2O are not strong enough to replace the _____ between the H2O molecules.

Answers

I2 (s) has very low solubility in H2O (l) because the weak dipole-induced dipole forces between I2 and H2O are not strong enough to replace the hydrogen bonds between the H2O molecules.

Dipole interactions are susceptible interactions that get up from the close association of permanent or precipitated dipoles. Collectively these forces are called Van der Waals interactions. Proteins incorporate a massive number of these interactions, which vary substantially in energy.

Solubility depends on the solvent's capacity to overcome the intermolecular forces in a solid. Red blood cells have an excessive concentration of dissolved ions. When positioned into pure water they rupture.

Polar species are soluble in water, whilst nonpolar species are soluble in oils and fats. Covalent solubility uses the like dissolves like a rule. This means that materials with an equal form of polarity might be soluble in one another. moreover, compounds with differing polarities might be insoluble in one another.

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What coefficients are needed to balance the following:

Cu(NO3)2 + GaI3 →CuI2 + Ga(NO3)3


What coefficients are needed to balance the following:

Cu(NO3)2 + GaI3 →CuI2 + Ga(NO3)3


A. 2,3,3,2

B . 1,1,1,1

C. 2,3,2,3

D. 3,2,3,2

Answers

The answer to this question is D. 3,2,3,2

1.25 grams of unknown acid was dissolved in 15.00 mL of water and then titrated with 0.100 M NaOH(aq). The
equivalence point was reached after 20.00 mL of the NaOH solution had been added. Using the data determine
What is the molar mass of the acid?

Answers

The molar mass of the acid, given the data is 625 g/mole

What is equivalence point?

This is a point is a titration reaction where the amount of the acid added is enough to neutralize the base

This simply implies that the number of mole of the acid used is equal to the number of mole of the base.

How to determine the mole of the baseVolume of base (NaOH) = 20 mL = 20 / 1000 = 0.02 LMolarity of base (NaOH) = 0.1 MMole of base (NaOH) = ?

Mole = molarity × volume

Mole of base (NaOH) = 0.1 × 0.02

Mole of base (NaOH) = 0.002 mole

How to determine the molar mass of the acidMole of base (NaOH) = 0.002 moleMole of acid = Mole of base (NaOH) = 0.002 moleMass of acid = 1.25 gMolar mass of acid =?

Molar mass = mass / mole

Molar mass of acid = 1.25 / 0.002

Molar mass of acid = 625 g/mole

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Calculate the heat released when 12.5g of water, at its freezing point, freezes.

16700 J

8350 J

4170 J

12543 J

Answers

Answer:

4170 j

Explanation:

water has low melting point

A mass of 26.1 g of an element is known to contain 6.87 x 1023 atoms. What is the atomic mass of the element

Answers

Using Avogadro's law, we know the amount of moles in the sample is

[tex]\frac{6.87 \times 10^{23}}{6.022 \times 10^{23}}=1.1408170043175 \text{ mol}[/tex]

Therefore, the atomic mass is:

[tex]\frac{26.1}{1.1408170043175}=\boxed{22.9 \text{ g/mol (to 3 sf)}}[/tex]

1. How many grams of iron (II) oxide can be produced from 3.4 g of iron in this balanced equation?
4Fe +3022Fe₂O3
2. How many grams of magnesium carbonate is produced from 6.7 g of magnesium oxide in this
balanced equation?
MgO + CO₂ → MgCO3
3. How many grams of calcium hydroxide is produced from 9.4 g of calcium chloride in this balanced
equation?
CaCl₂ + 2NaOH → 2NaCl + Ca(OH)2

Answers

Answer:

3.12g FeO3

14.33g MgCO3

5.92g Ca(OH)2

Explanation:

For the first problem, convert grams of Fe to mols of Fe.

molar mass of Fe: 55.845

Grams of Fe: 3.4g

3.4/55.845 = 0.06 mol Fe

There are 4 Fe for every 2 FeO3

So.. 0.06(2/4) = 0.03 mol FeO3

Multiply the mols by the molar mass of FeO3

Molar mass of FeO3: 103.845

0.03 * 103.845 = 3.12 g FeO3

what happens if the same zero error occurs in every reading

Answers

Zero error occur in every reading means that the measuring instrument needs to recalibrated and adjusted.

What is Zero error?

This error occurs when a measuring instrument reflects a digit which isn't zero despite the real value being zero.

When this occurs, only the zero screw on the device should be adjusted so as to correct this technical error. This is why recalibration should be the most appropriate solution.

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hi I really need help with this.
Balance the following neutralization reactions:

_______ HBr + _______ KOH _______KBr + _______H2O

_______ HF + _______ Fe(OH)3 _______FeF3 + ______ H2O

______HCl + _______ Ca(OH)2 _______CaCl2 + ______ H2O

Answers

Answer:

Explanation:

In order to balance equations, simply alter coefficients until all elements are equal on both sides of the reaction symbol ”—>”:

1HBr + 1KOH —> 1KBr + 1H2O

The reaction is already balanced

3HF + Fe(OH)3 —> FeF3 + 3H2O

To match the 3 Flluorines on the right hand side, add 3 to HF and then add 3 to H2O to compensate for the increase in hydrogens.

2HCl + Ca(OH)2 —> CaCl2 + 2H2O

The Chlorine must be balanced, and then hydrogen must be balanced.

Hope this helps! If it did, I would appreciate if you provided brainliest!

K2CO3 = K2O +
How to complete this chemical equation so that the chemical reaction is decomposition

Answers

Answer:

K2CO3 = K2O + CO2

Explanation:

In a chemical equation, the number of atoms on the left needs to be balanced with the number of atoms on the right, and there has to be the same number of the same *type* of atom on both sides as well.
On the left:
2 K
1 C
3 O
and on the right,
2 K
1 O

On the right, there are a few atoms missing, specifically, 1 C and 2 O.
The missing atoms then should be added to the side missing the atoms, preferably in a stable molecule. Luckily, CO2 contains exactly 1 C, and 2 O s, and is quite stable. So, a "CO2" has to be added on the left

Prepare a project report on various samples of
a) a mixture
b) a compound
c) an element ( metal or non metal)
( 2 from each ) highlighting the main characteristics features of elements, compounds and mixtures.

detailed answer plsss

Answers

Project Reports

A) Mixture

This refers to the material that is made when different substances mix up physically and causes a reaction.

You can make on the project of Mixture -

1) Alloys2)Colloids3) Suspension4) Solution

B) Compound

This refers to the chemical bond that holds different atoms tightly

You can make on the project of Compound -

1)Water2)Methane3)Carbon Dioxide4) Sulfuric Acid

C) Elements

Based on the fact that the atom is the smallest indivisible part of an element, elements like phosphorous cannot be further broken down.

You can make on the project of Elements -

1) Mercury2) Iron3) Copper4)Carbon

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Beta particles are identical to Multiple Choice protons. helium atoms. hydrogen atoms. helium nuclei.

Answers

Correct option:

Beta particles are identical to "electrons".          

 

What are particle beams:

There are various types of particle beams, such as (alpha) and (beta) particles, neutron beams, etc. While β-particles are electrons released from a nucleus, helium nuclei made up of two protons and two neutrons are known as α-particles.

When certain radionuclides undergo a process known as beta-decay, high-energy, high-speed electrons (e-) or positrons (p+) are released from the nucleus.

An electron and a beta particle share the same mass and charge.

Beta radiation in high doses can burn the skin, and beta emitters are dangerous if they penetrate the body. Thin sheets of metal or plastic may be able to stop beta particles.

Note: Your question is incomplete, but most probably your full question also includes one more option "Electron".

Beta particles are identical to

Multiple Choice

1. protons.  2. helium atoms.  3. hydrogen atoms.  4. helium nuclei. 5. electrons.

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calculate no. of molecules in a spherical drop of water... radius = 0.1 mm and density of water = 1g/cm²​

Answers

Answer:

1.49X10^20

Explanation:

hope this helps (´・ω・`)

Step 8: Measure Pressure and Volume with the Book
and 3 kg of Weight
Total the mass on the syringe. Record it in the
correct row of the data table.
kg

Answers

According to Boyle's law of gases, the volume  of the gas will decrease when increasing the pressure of the gas in the syringe by adding weights above the syringe.

What is the statement of Boyle's law?

Boyle's law of gases states that the pressure of a given mass of gas is inversely proportional to the volume of the gas.

In the given, increasing the pressure of the gas in the syringe by adding weights above the syringe will result in a decrease in the volume of the gas.

On the other hand, decreasing the pressure will result in an increase in the volume of the gas.

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Answer:

1. 3.498

2. 1.37

3. 37.5

4. 51.4

Explanation:

The table shows the nature of the reactants and products formed in a certain type of chemical reaction. Nature of Reactants and Products Reactants Products Ionic compound + Ionic compound Ionic compound + Ionic compound Which of the following is true about this type of chemical reaction? (4 points) Group of answer choices It is a single replacement reaction, and all four compounds are different. It is a double replacement reaction, and all four compounds are different. It is a single replacement reaction, and each compound has the same set of ions. It is a double replacement reaction, and each compound has the same set of ions.

Answers

The given reaction is a double replacement reaction; option B.

What is a chemical reaction?

A chemical reaction is a reaction in which chemical changes occurs in the atoms of reactants which results in the formation pf products.

The given reaction is as follows:

Ionic compound + Ionic compound ---> Ionic compound + Ionic compound

Since exchange of ions occur, it is a double replacement reaction.

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Which kind of investigations allow for the control of variables?
Ohypothesis
O experimental
O descriptive
O comparative

Answers

Answer:

B.) Experimental

Explanation:

in an experimental investigation you have control over different variables you are testing so that makes this the most accurate answer.

The kind of investigation that allows for the control of variables is an experimental investigation.

In an experimental investigation, researchers manipulate or control certain variables while keeping others constant. This allows them to determine the cause-and-effect relationship between variables.

To conduct an experimental investigation, researchers typically follow these steps:

1. Formulate a hypothesis: A hypothesis is a testable statement that predicts the relationship between variables. It provides the basis for the experiment.

2. Identify variables: Variables are the factors or conditions that can be manipulated or measured in an experiment. In an experimental investigation, researchers typically have an independent variable and a dependent variable .

3. Control variables: In order to isolate the effect of the independent variable on the dependent variable, researchers need to control or keep constant other variables that could potentially influence the results. This ensures that any changes observed in the dependent variable can be attributed to the independent variable.

4. Design the experiment: Researchers design an experiment that allows them to manipulate the independent variable and measure the dependent variable. They may use control groups, randomization, and other techniques to minimize bias and ensure reliable results.

5. Collect and analyze data: Researchers collect data by conducting the experiment and measuring the dependent variable. They then analyze the data using statistical techniques to determine if there is a significant difference between groups or conditions.

By controlling variables in an experimental investigation, researchers can draw valid conclusions about the relationship between the independent and dependent variables. Thus, the correct answer is experimental investigations.

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The ideal gas constant, R has several different values that could be used. Which quantity causes these differences?
O pressure
O temperature
O volume
O moles

Answers

Answer:

The answer is A

Explanation:

A solution is made by dissolving 3.14 g of NaCl in 79.9 mL of water. What is the concentration of sodium chloride in units of weight/volume percent? Group of answer choices 3.78% (w/v) NaCl 96.1% (w/v) NaCl 3.93% (w/v) NaCl 0.0393% (w/v) NaCl

Answers

The concentration of sodium chloride in units of weight/volume percent is 3.93g/ml

Given that

3.93 (w/v) NaCl

Weight NaCl = 3.14g

Volume of water = 79.9mL

W/V is usually represented in g/mL, so no need to change anything

3.14g/79.9mL *100 = 3.93 g/mL (%)

One mole of NaCl contains 6.022 x 10 23 NaCl formula units.

• Use the mole quantity to count formulas by weighing them.

Mass of a mole of particles = mass of 1 particle x 6.022 x 1023

• The mass of an atom in amu is numerically the same

as the mass of one mole of atoms of the element in grams.

One atom of sulfur has a mass of 32.07 amu;

one mole of S atoms has a mass of 32.07 g.

Mass of 1 H atom: 1.008 amu x 1.661 x10-24 g/amu = 1.674 x10-24 g

Mass of 1 mole of H atoms:

1.674 x10-24g/H atom x 6.022 x1023H atoms = 1.008 g

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25. An equilibrium mixture of SO2 (g), O2 (g), and SO3 (g) is transferred from a 1.00L flask to a 2.00-L flask. In which direction does the reaction proceed to restore equilibrium

Answers

This chapter deals with chemical equilibrium, or how far chemical reactions proceed. Some reactions convert reactants to products with near 100% efficiency but others do not.

Chemical equilibrium is a dynamic process and occurs when the rates of two opposing processes (reactions) become the same. Unless conditions are somehow changed, the concentrations of both reactants and products remain constant after equilibrium is achieved.

Consider the decomposition reaction in which N2O4 (g) ' 2 NO2(g) What happens to the concentration of each, based upon the rate equations, as the reaction proceeds

Assuming reversible elementary processes, Rate (forward) = k (forward) x [N2O4]  and rate (reverse) = k (reverse) x [NO2]2As [N2O4] decreases, rate forward decreases, and, as [NO2] increases, rate reverse increases, but more quickly.

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chemistry
state two industrial uses of hydrogen​

Answers

Answer:

refining petroleum, treating metals, producing fertilizer, and processing foods.

A) If an atom has 13 protons how many electrons will it have justify your answer

B) nucleus of an atom consists electrons. Do you agree with this statement? Justify your answer


Answers

Answer:

13

Explanation:

because the number of protons and electrons in the atom are the same

Rank protons, neutrons, and electrons according to their mass. Identify the charge of each and their location

Answers

Answer:

discuss the successes and the short comings of the conservative reaction to the french rvolution as seen in the actions of the congress of vienna and the holy aliance?

How can gamma rays be harmful?
OA. They consist of high-energy radiation that can travel through most
materials.
B. They are large particles that can break apart other particles.
C. They are fast-moving particles that can penetrate the skin.
D. They are small, slow particles that can cause uncontrolled chain
reactions.

Answers

Answer:

option c

Explanation:

They are fast-moving particles that can penetrate the skin.

_______ can travel through solid, liquid, and gaseous materials, whereas _______ can travel only through solid materials.

Answers

Sound can travel through solid, liquid, and gaseous materials, whereas S-Waves can travel only through solid materials.

What is Sound ?

Sound is a form of energy. Sound moves through matter that is solid, liquid, and gas. In a vacuum sound cannot travel. In solids sound can travel more quickly as compared to liquid and gases because in solids molecules are closer together.

What is S- Waves ?

S-Waves are shear waves. These are the waves of high frequency and short wavelength. S- Waves can travel only through solid materials.

Thus from the above conclusion we can say that Sound can travel through solid, liquid, and gaseous materials, whereas S-Waves can travel only through solid materials.

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Elizabeth company has 10,000 units of their new product in warehouse. They sold 10,000 in pre-order that will need to be shipped immediately. They are producing 1,000 units per week and they are receiving 700 order per week. How long will it take to fill the warehouse to maximum capacity at the current production rate? The most important role of bacteria in the environment is Group of answer choices as a source of restriction enzymes. as disease-causing agents. as fungal control. as decomposers. Add a line to the poem . Make sure that the poem makes sense, and that you are highlighting your chosen poetic device. Heres aHere's the first line of the poem: The earth roared its frustration, (personification)AlliterationMetaphorSimileHyperbolePersonification Which is not needed in order for a government-issued passport to be considered a valid form of id?. what does y =4 in coordinates look like Puja limbu did 8 out of 10 math problems and raju lama did 11 out of 15 similar maths problems.express the number of problems solved by each of them in fractions and identify who did better performance. Drag each tile to the correct box. All tiles will be used.In what order should these source entries appear on a Works Cited page? True or false: Unlike generations before them, Millennials have little concern for the environment and are more interested in profit over planet What is the mass of mars _____ works especially well when some group members are more vocal than others, because it equalizes participation. Your friend writes an equation of the line shown. Is your friend correct?Student work is shown. A line is graphed on a coordinate plane. The line passes through the points at ordered pair (0,-2) and ordered pair (4,0). Your friend writes an equation of the line shown. Is your friend correct? Their equation was y = 1/2x + 4. 4. Try It #4 Write the point-slope form of an equation of a line that passes through the points (-1,3) and (0,0). Then rewrite it in the slope-intercept form. Given sin a=2/5 and cos b=1/3 with a and b both in the interval (3/2,2), find sin(a+b) prove the equation (2x+5)2 = 4x (x + 5) +25 The graph shows the height of an elevator over a period of time.On which intervals could the elevator be traveling from a higher floor to a lower floor? A. Between A and B and between C and D B. Between B and C and between D and E C. Between E and F and between G and H D. Between F and G can you teach me this 13 V3 A4V3VR=?Calculate the resistance measured across the second light bulb. HELP FASTqkefjiwgjhjgjtgth If a firm has economies of scale, increasing the quantity produced will lead to: multiple choice 1 higher long run average costs. lower long run average costs. lower short run average costs. higher profits. Amanda, a single parent, is looking for a new job. Considering that she has two school-aged children, she is particularly keen on finding an employer who can provide her with alternative work arrangements such as flexible work hours and telecommuting. In terms of the decision-making process, these represent Amanda's ________.