The diagram shows the apparatus used to separate pure water from impure water. What is the name of the name of this process? (Write one word only)

Answer:

examples: mass, density, color, boiling point, temperature, and volume. non examples- anything that's NOT a physical property will be a non-example. emotion is not a physical property. ... property or behavior of a substance when it undergoes a chemical change or reaction.

Physical properties can be observed or measured without changing the composition of matter. ... Color, phase, odor and boiling point are the physical properties. Reactivity with oxygen depends on the chemical nature of object, thus, it is not a physical property.

Explanation:

Hope this helps!

The correct option that express conservation of energy here is

Energy can not be created or destroyed; it only changes form.

include thermal

mechanical

,electrical

chemical

kinetic, and potential.

Therefore, option D is the true statement.

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The best way to measure the pH of a natural solution while out in a forest is to use a portable pH meter or pH test strips specifically designed for field use. These instruments provide accurate and reliable pH measurements and are convenient for outdoor applications.

1. Prepare the necessary equipment: Before heading out to the forest, gather the required tools. You will need a portable pH meter or pH test strips, as well as the necessary reagents or calibration solutions if using a pH meter.

2. Collect the sample: Locate the natural solution you want to measure the pH of, such as a stream, pond, or soil. Use a clean container to collect a representative sample of the solution.

3. Calibrate the pH meter (if applicable): If you are using a portable pH meter, it is essential to calibrate it before taking measurements. Follow the manufacturer's instructions to calibrate the meter using the provided calibration solutions.

4. Conduct the measurement: For pH meters, immerse the electrode into the collected sample. Allow some time for the reading to stabilize, and then record the pH value indicated on the meter's display.

5. Using pH test strips: If you are using pH test strips, dip the strip into the collected sample for the recommended amount of time. Remove the strip and compare the color change with the provided color chart. Determine the corresponding pH value from the chart.

6. Repeat for accuracy: To ensure reliability, repeat the measurement process at least once and compare the results. This step helps confirm the accuracy of your measurements.

7. Record and analyze the data: Note down the pH values obtained and any relevant observations. Analyze the data as needed for your research or monitoring purposes.

By following these steps and using the appropriate equipment, you can effectively measure the pH of a natural solution while in a forest setting.

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Answer:

the 2nd and 5th

Explanation:

they are both correct

Answer:

b and d | Glucose is a reactant in both photosynthesis and cellular respiration. | Carbon dioxide is a product of both photosynthesis and cellular respiration.

Explanation:

hope this helps.

The mass percentage is an important method which is used to calculate the concentration of a solution. The amount of water needed to add in order to make 17.85 % NaCl solution is 230.1 g.

The mass percentage of a component in a solution is defined as the mass in grams of that component present per 100 g of the solution. The term mass percentage is denoted as w/w. It is used to calculate the concentration of a binary solution.

Mass percentage = Mass of the component in the solution / Total mass of solution × 100

17.85 = 50.0 / 50.0 + x × 100

0.1785 (50.0 + x) = 50.0

8.925 + 0.1785 x = 50.0

0.1785 x = 41.075

x = 230.1 g

Thus the amount of water added to make the solution is 230.1 g.

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The energy released in the nuclear reaction of 4H → He + 2e+ + 2ve is 2.224 MeV.

Recall that the mass-energy equivalence formula,

   E=mc²

We need to convert the masses from atomic mass units (u) to kilograms (kg) first, and then multiply by the speed of light squared (c²) in units of meters per second.

The change in mass between the reactants and products is:

Δm = (4.00150 u - 4 x 1.00723 u) x 1.66054 x 10⁻²⁷kg/u

= 0.02916 kg

where we have used the conversion factor 1 u = 1.66054 x 10⁻²⁷kg/u

The energy released is then:

E = Δm x c² / (1.60218 x 10⁻¹³ MeV/J)

= 0.02916 kg x (299792458 m/s)² / (1.60218 x 10⁻¹³ MeV/J)

= 2.224 MeV

Therefore, the energy released in this nuclear reaction is 2.224 MeV.

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Answer:

it would be the second one

Answer: The answer is C.

Explanation: I took the test and got it right.

Entropy is a notion that essentially refers to the universe's propensity for chaos or the spontaneous changes that take place in everyday happenings. Here the standard entropy change for the given reaction is -233.

Entropy is typically referred to as a measurement of a system's randomness or disorder. In the year 1850, a German physicist by the name of Rudolf Clausius first proposed this idea. Entropy is a thermodynamic property that is used to characterize how a system behaves in terms of temperature, pressure, entropy, and heat capacity.

Here the standard entropy change is:

Entropy of products - entropy of reactants

ΔS = 230 - (201 + 2 ( 131)) = -233

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If a snail crawls 55 inches per day ,the snail will crawl approximately \(3.2 * 10^3 centimeters.\)

To convert inches to centimeters, we need to use the conversion factor: 1 inch = 2.54 centimeters.

First, let's calculate the distance the snail crawls in inches in 23 days. We can multiply the daily distance by the number of days:

Distance in inches = 55 inches/day × 23 days = 1265 inches.

Now, to convert the distance from inches to centimeters, we multiply the distance in inches by the conversion factor:

Distance in centimeters = 1265 inches × 2.54 cm/inch = 3215.1 cm.

Rounding to the appropriate number of significant figures, the snail will crawl approximately 3215 cm or \(3.2 * 10^3 centimeters.\) in 23 days.

Therefore, the answer is  Option 3:\(3.2 * 10^3 centimeters.\)

This means that in 23 days, the snail will crawl approximately\(3.2 * 10^3 centimeters.\)

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Water and oil? Cake and your finger? Glass and virtually anything? ...

Tonnes and tonnes of noninterreactant substances.

Hope this helps.

The balanced equations are Cd (g) + S\(_8\) (g) → CdS (g), K\(_2\)CO\(_3\) → K\(_2\)O + CO\(_2\). and a Na +  HOH → NaOH + H\(_2\). Cd (g) + S\(_8\) (g) → CdS (g) is combination reaction.

An equation per a chemical reaction is said to be balanced if both the reactants plus the products have the same number of atoms and total charge for each component of the reaction. In other words, both sides between the reaction have an equal balance of mass and charge. The balanced equations are Cd (g) + S\(_8\) (g) → CdS (g), K\(_2\)CO\(_3\) → K\(_2\)O + CO\(_2\). and a Na +  HOH → NaOH + H\(_2\).

Cd (g) + S\(_8\) (g) → CdS (g) = combination reaction

K\(_2\)CO\(_3\) → K\(_2\)O + CO\(_2\)  = decomposition reaction

Na +  HOH → NaOH + H\(_2\) = Hydration reaction

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The correct options that will result in mole are option B, C, and H

To know the options that will result in mole, do the following:

Ideal gas law states as follow:

PV = nRT

Where

PV = nRT

Make n the subject by dividing both sides by RT

n = PV / RT (option B)

Mole, mass and molar mass are related according to the following formula:

Mole = mass / molar mass (option C)

Molarity is defined as mole per unit volume as shown below:

Molarity = mole / volume

Make mole the subject by cross multiplying.

Mole = Molarity × volume (option H)

Thus, from the above illustrations, we can conclude that the correct options which will result in mole are option B, C, and H

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Answer:

The alkyne is linear

Explanation:

Any molecule with a triple bond is considered an alkyne. In regards to the shape, because carbon can only bond to 4 different atoms at once a triple bond fills in 3 of the required 4 atoms needed to reach the molecules ground state (when it's most stable). The more electrons shared between atoms, the shorter the bond will be which results in a stronger and more linear line. Keep in mind a quadruple bond is not possible between carbons as of now.

Answer:

a

Explanation:

Answer:The atoms cool down and become slower and their bonds become close and they move less.

Explanation:I took science

Answer:

The process in which energy is emitted by one object ,transmitted through .......

Answer:the process in which energy is emitted by one object, transmitted through space, and absorbed by another

Explanation: took the test

Answer:

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Answer: Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

Explanation:

Answer:

73.05g

Explanation:

1.25 mol NaCl * \(\frac{58.44g}{1 mol NaCl}\) = 73.05g

58.44g = molar mass of NaCl

Answer:

The problem provides you with the solubility of potassium chloride,

KCl

, in water at

20

∘

C

, which is said to be equal to

34 g / 100 g H

2

O

.

This means that at

20

∘

C

, a saturated solution of potassium chloride will contain

34 g

of dissolved salt for every

100 g

of water.

As you know, a saturated solution is a solution that holds the maximum amount of dissolved salt. Adding more solid to a saturated solution will cause the solid to remain undissolved.

In your case, you can create a saturated solution of potassium chloride by dissolving

34 g

of salt in

100 g

of water at

20

∘

C

.

Now, your goal here is to figure out how much potassium chloride can be dissolved in

300 g

of water at this temperature. To do that, use the given solubility as a conversion factor to take you from grams of salt to grams of water

Answer:

The sun is important to Earth because it helps regulate the climate, is the main source of energy for producers in the ecosystems and it keeps the oceans from freezing, along with providing light. If just one of these factors changed dramatically, it would impact all life on Earth. Without the sun, the planet’s oceans would freeze, temperatures would drop and all life would die off without light or food.

The sun is important to every single aspect of life on the planet. Human life could not exist without it because it would cause all of the water and food sources to cease to exist. The sun is in no danger of disappearing any time soon. Scientists estimate the sun has at least another 5 billion years before it turns into a red giant and swallows up Mercury and Venus. It will also destroy all life on Earth because it will be close to the planet once that change occurs. The temperature of the sun will also increase tenfold from 18 million to 180 million degrees Fahrenheit. The increase in the sun’s size when it finally begins to change will be due to the heat increase causing expansion.

Without the sun, we would no energy to live, no plants to eat, no trees to give us oxygen or animals to roam. We would not have gravity to keep the earth in orbit. Without the sun, the earth would be dark and cold and life would quickly disappear.

C₆H₁₂O₆ is the molecular formula of gulcozo.

Answer &

Explanation:

eukaryotic: Having complex cells in which the genetic material is contained within membrane-bound nuclei. cell: The basic unit of a living organism, consisting of a quantity of protoplasm surrounded by a cell membrane, which is able to synthesize proteins and replicate itself.

therefore it is cell

In the given reaction, chlorine (\(Cl_{2}\)) is being reduced.

In the given reaction:

Mg + \(Cl_{2}\)→ \(Mg^2^+\) + 2\(Cl^-\)

The reactants are magnesium (Mg) and chlorine gas ( \(Cl_{2}\)), and the products are magnesium cations (\(Mg^2^+\)) and chloride anions (\(Cl^-\)).

To determine which species is being reduced, we need to compare the oxidation states (or oxidation numbers) of the elements before and after the reaction. The element that undergoes a decrease in oxidation state is being reduced.

In this reaction, the oxidation state of magnesium changes from 0 to +2. Since the oxidation state of magnesium increases, it is undergoing oxidation, not reduction.

On the other hand, the oxidation state of chlorine changes from 0 to -1. The chlorine atoms in  \(Cl_{2}\) have an oxidation state of 0, while in the chloride ions (\(Cl^-\)), the oxidation state is -1. Since the oxidation state of chlorine decreases, it is being reduced.

Therefore, in the given reaction, chlorine ( \(Cl_{2}\)) is being reduced. It gains electrons and undergoes a decrease in oxidation state from 0 to -1.

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5. The mass (in grams) of FeCl₂ that can be produced from 5.23×10²² formula units of Fe₃(PO₄)₂ is 33.05 g

First, we shall obtain the mass of 5.23×10²² formula units of Fe₃(PO₄)₂. Details below:

From Avogadro's hypothesis,

6.022×10²³ formula units = 1 mole of Fe₃(PO₄)₂

But,

1 mole of Fe₃(PO₄)₂ = 357.55 g

Thus,

6.022×10²³ formula units = 357.55 g of Fe₃(PO₄)₂

Therefore,

5.23×10²² formula units = (5.23×10²² × 357.55) / 6.022×10²³

5.23×10²² formula units = 31.05 of of Fe₃(PO₄)₂

Finally, we shall obtain the mass of FeCl₂ produced. Details below:

Fe₃(PO₄)₂ + 6HCl -> 2H₃PO₄ + 3FeCl₂

From the balanced equation above,

357.55 g of Fe₃(PO₄)₂ reacted to produce 380.55 g of FeCl₂

Therefore,

31.05 g of Fe₃(PO₄)₂ will react to produce = (31.05 × 380.55) / 357.55 = 33.05 g of FeCl₂

Thus, the mass of FeCl₂ produced is 33.05 g

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Explanation:

It is the emission of electron from a metal under the effect of light is known as photo electric effect

I hope this imformation help full for you

The name "sodium carbonate" refers to the chemical formula Na2CO3, which consists of two sodium ions (Na+)

The compound Na2CO3•4H2O is called sodium carbonate decahydrate. It is a hydrate compound, indicating that it contains water molecules within its crystal structure. In this case, there are four water molecules associated with each molecule of sodium carbonate.

The name "sodium carbonate" refers to the chemical formula Na2CO3, which consists of two sodium ions (Na+) and one carbonate ion (CO3^2-). The "decahydrate" part of the name indicates the presence of ten water molecules (H2O) in the compound.

When sodium carbonate decahydrate is formed, each sodium carbonate molecule associates with four water molecules, resulting in the formula Na2CO3•4H2O. The water molecules are not chemically bonded to the sodium carbonate but rather held within the crystal lattice through weak intermolecular forces.

Sodium carbonate decahydrate is commonly known as soda ash or washing soda. It is used in various applications such as water treatment, glass manufacturing, detergent production, and pH regulation in swimming pools.

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Calcium sulfate (CaSO4) is a chemical compound made from calcium, oxygen, and sulfur.

The major sources of calcium sulfate naturally happen are gypsum and anhydrite, which occur at many position worldwide as evaporites.

A simple procedure for preparing acicular calcium sulfate dihydrate is on condition that in which a slurry of calcium carbonate carrying 100 to 800 grams per lite of calcium carbonate is assorted with a solution of sulphuric acid carrying 80 to 500 grams per liter sulphuric acid in proportions that construct calcium sulfate.

So we can conclude that Calcium sulfate, CaSO4, is a natural happen calcium salt.

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