this is probably almost the easiest question ever but i still need help so-

Answer:

The answer is C

Explanation:

Explanation:

[tex]workdone = force \times distance \\ W = (2.6 \times {10}^{ - 4} ) \times (3.7 \times {10}^{ - 3} ) \\ W = 9.62 \times {10}^{ - 7} \: joules[/tex]

The formula W = Fd, where W is the amount of work done, F is the force, and d is the distance, is used to determine how much work is done on a particle when it is pushed by a force. The force and distance in this issue are 2.6 10-4 newtons and 3.7 10-3 metres, respectively.

We add the force and distance together to determine the work done: 9.62 10-7 newton-meters are equal to W = 2.6 10-4 newtons x 3.7 10-3 metres. The response must be presented using the appropriate scientific notation and significant numbers.

The solution should include three significant figures, just like the numbers in the problem, which have three. Therefore, 9.62 10-7 newton-meters is the correct answer.

This response uses appropriate scientific language.notation because the exponent is a negative power of 10 and the coefficient ranges from 1 to 10. In conclusion, the particle underwent work from the force of 9.62 10-7 newton-meters. This response uses the appropriate scientific notation and the correct number of significant digits.

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Answer:

Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. ... Radio is a form of electromagnetic radiation just like light and can therefore travel through the vacuum of space just fine

Answer:

D. Quantitative

Explanation:

Quantitative observation deals with numbers, or amounts.

Qualitative observation deals with de- scriptions that cannot be expressed in numbers.

Answer:

this makes no sense you arent gonna get help

Explanation:

Answer:

Amplitude

Explanation:

Im taking this test rn lol

Answer:

It has to do with increasing the entropy of the universe.

Explanation:

The modern definition of entropy is that it is the extent to which a system is able to disperse its energy. Energy (such as heat!) likes to spread itself out, so that as many states as possible are occupied with the least amount of energy.

Answer:

Diet:  fruit, leaves, bark, stems, seeds, eggs, insects, birds, small to medium sized primates - red tail monkeys, yellow baboons, bushbuck and warthogs.

Environmental Relationship - The chimpanzee keeps the plants it eats short, moves dirt around which helps things living in the dirt, keeps bird and small monkey populations that it eats from overpopulating.

Different biotic and abiotic factors affect why the chimps live where they do. (Spatial Relationships)

Explanation:

Answer:

water

Explanation:

Answer:

Final pressure = 1848.36 Torr

Explanation:

Given that,

Initial volume, V₁ = 5.2 L

Initial pressure, P₁ = 782 Torr

Initial volume, V₂ = 2.2 L

We need to find the final pressure. We know that the relationship between pressure and volume is given by :

[tex]P\propto \dfrac{1}{V}\\\\\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}\\\\P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{782\times 5.2}{2.2}\\\\P_2=1848.36\ torr[/tex]

So, the final pressure is equal to 1848.36 Torr.

Answer:

15 electrones: 1S²2S²2P⁶3S²3P³. Fósforo

27 electrones: 1S²2S²2P⁶3S²3P⁶4S²3d⁷ - Cobalto.

56 electrones: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s² - Bario

49 electrones: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p¹ - Indio

Explanation:

Para llenar los orbitales electrónicos de los distintos átomos debemos hacer uso de la regla de llenado electrónico de Aufbau. Por ejemplo, para el átomo con 15 electrones, la configuración electrónica es:

1S²2S²2P⁶3S²3P³. 2+2+6+2+3 = 15 electrones

Si elemento es neutro, tiene 15 protones. Es decir, es el fósforo, P.

27 electrones:

1S²2S²2P⁶3S²3P⁶4S²3d⁷ - Cobalto.

56 electrones:

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s² - Bario

49 electrones:

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p¹ - Indio

Answer:

Equation 2, because K being more reactive, exchanges position with Pb in PbNO3.

Explanation:

Equation 2, because K being more reactive, exchanges position with Pb in PbNO₃. PbNO₃ + KI reaction can be used to extract lead metal from lead nitrate solution. Therefore, option A is correct.

The chemical element lead has the atomic number 82 and the letter Pb for its symbol. It is a dense, hefty metal that is heavier than the majority of everyday materials. Lead is pliable and soft, and it also has a low melting point. Lead has a tinge of blue when it is first cut, and it is bright and gray. When exposed to air, it tarnishes to a drab gray tone.

Lead is still often used in a variety of products, including some solders, lead crystal glass, pigments, ammunition, cable sheathing, lifting and diving weights, and weight belts. Corrosive liquids are frequently stored in it.

The chemical element lead has the atomic number 82 and the symbol Pb. Lead is a solid at normal temperature and is categorized as a post-transition metal.

Therefore, option A is correct.

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The pairs of solutions produce a precipitate when combined are  NH4Cl and AgNO3. Therefore, option B is correct.

Chemical precipitation is the process of turning a liquid into a solid by either making the liquid insoluble or making it extremely saturated.

The chemical reaction between potassium chloride and silver nitrate, in which solid silver chloride is precipitated out, is one of the best examples of precipitation reactions. This is the precipitation reaction's byproduct, the insoluble salt.

Thus, The pairs of solutions produce a precipitate when combined are  NH4Cl and AgNO3, option B is correct.

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Answer:

B. The reaction would shift to produce more O2 and SO2-

Explanation:

This is because the forward reaction is exothermic.

The correct answer is option B. The reaction would shift to produce more O2 and SO2-

A decrease in temperature will cause the equilibrium to shift to favour the exothermic reaction. Therefore the reverse reaction rate will decrease sharply, and then gradually increase until equilibrium is re-established.

If the temperature is increasing, a product is being added to the equilibrium, so the equilibrium shifts to minimize the addition of extra product: it shifts back toward reactants.

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Answer:

41.09% B N. The formula in EDTA

Explanation:

Answer:

Right

Explanation:

The given parameters are;

The soluble sulfate formed by the metal, M = M₂SO₄

In the galvanic cell formed by the metal M, we have;

The concentration of M₂SO₄ in the left half cell = 50.0 mM = 0.05 M

The concentration of M₂SO₄ in the right half cell = 5.00 M

In the galvanic cell, the metal 'M' will be dissolved into the solution with lower concentration as M²⁺ which is the left half cell, making the cell negative and the solution more concentrated

In the right half cell, the metal 'M²⁺' in the solution will be plated unto the electrode making the solution less concentrated and the electrode in the right half cell will be the positive electrode

Therefore;

The electrode which will be positive is the electrode in the right half cell.

Answer:

the correct answer is label D

Explanation:

label D is the only watershed that touches the chesapeak bay

Answer:

B

Explanation:

Explanation:

Plastic takes time to degrade which means it has great longevity. Plastic does not break as easily as glass or other materials. It lasts long and offers great service. Plastic storage containers offer greater flexibility than any other packaging materials.

Answer:

70/100 X 2000 = 1400 tonnes of iron.

Explanation:

take the percentage of iron oxide and divide with overall amount of iron oxide using 2000 tonnes of hematite ore. 1400 tonnes of iron will be produced. this is not the percentage. if you want the percentage of iron produced just divide.

70/100 x 200 = 1400 tonnes of iron

percentage of iron produced = 70/1400 x 100 = 5 % of iron produced from 70% of iron oxide in 2000 tones of hematite ore

Answer: The chemical formula for barium chloride shows the number of ATOMS of each element in the SMALLEST representative unit of the substance.

Explanation:

The chemical formula of compound are ways in which a chemical substance is being expressed using chemical symbols to show types of atoms and subscripts to indicate the number of atoms of each element. It shows the number of atoms in a single ( smallest) representative unit of the substance. Using the compound BaCl2;

"Ba" represents the abbreviation for the element "Barium" while "Cl2" represents the abbreviation for the element "chloride" with the subscript of two indicating the number of atoms of chlorine.

There are steps to be considered while writing a chemical compound of a substance, they include:

--> write the symbol of all the elements that forms the compound ( Ba and Cl).

--> write the valency of each element. (Ba has 2 valence electrons while Cl has 1 valence electron).

--> exchange the valency of the both elements such that Ba bears valency of 1 and Cl bears valency of 2 electrons.

--> finally, write the valency of second atom as subscript of first and Write valency of first atom as subscript of second. You will achieve BaCl2 as your chemical formula.

The chemical formula for barium chloride shows the number of atoms in the smallest representative unit of the substance.

Barium chloride is an ionic compound. The formula unit of an ionic compound is commonly represented by its empirical formula. The empirical formula of barium chloride is BaCl2.

This formula of BaCl2 shows the number of atoms in the smallest representative unit of the substance.

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Arrhenius acid increases the concentration of hydrogen ion in an aqueous solution and Arrhenius base increases the concentration of hydroxide ion in an aqueous solution.

Arrhenius acid dissociates in aqueous solution to form hydrogen ion. In aqueous solution Arrhenius acid increases the concentration of hydrogen ions.  

Arrhenius base dissociates in aqueous solution to form hydroxide ion. In aqueous solution Arrhenius base increases the concentration of hydroxide ions.

In aqueous solution of hydroxide ions bases dissociates. Greater the concentration of base means greater the concentration of hydroxide ion. If hydroxide ion concentration is more then pH will be less.

Thus, we can say that Arrhenius acid increases the concentration of hydrogen ion in an aqueous solution and Arrhenius base increases the concentration of hydroxide ion in an aqueous solution.

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Answer:

impermeable

Explanation:

Answer:

aquifer?

Explanation:

Explanation:

The particles in solids are tightly packed, whereas the particles in liquid move around each other. The particles in gas move around quickly in all directions. Solids can only vibrate, but liquids and gas have some space for movement,

Answer:

oK so pay pattention to the fractions

Explanation:

To draw a lewis structure, the length of the bond has been unnecessary information. Thus, option A is correct.

The Lewis dot structure can be defined as the representation of the atoms in the molecules with the valence electrons. The structure has been consisted of the bond and the atoms in the structure.

The information about the valence electrons has been important in the lewis electron structure of the molecule. However, the length of the bond has not been a necessary factor in the lewis structure.

Thus, to draw a lewis structure, the length of the bond has been unnecessary information. Thus, option A is correct.

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Answer: if CH3COOH is an option then that’s the correct answer

Explanation:

Answer:

61 degrees

Explanation: