What are some of the disadvantages of electron microscopy?
Explain

Answer:

4

Explanation:

Equilibrium is a dynamic state in which the forward and reverse reaction rates are equal; the quantities of the reactants and products are not necessarily equal.

(You got this keep up the good work). :)

The rate of the forward reaction equals the rate of the reverse reaction in the equilibrium reaction.

A state of balance between opposing forces or actions.

Equilibrium is when the rate of the forward reaction equals the rate of the reverse reaction.

All reactant and product concentrations are constant at equilibrium.

Equilibrium is a dynamic state in which the forward and reverse reaction rates are equal; the quantities of the reactants and products are not necessarily equal.

Hence, option D is correct.

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Answer: The answer is malleable.

Explanation: Malleability is a physical property that some elements of matter have that can be broken down into sheets to give them a certain shape without breaking. This physical property belongs to plasticity. It is a characteristic that some metals have, sheets of said metal can be obtained. The heat needs to be increased, some examples are gold, platinum, zinc, tin, etc.

Answer: C

Explanation: Atoms in a solid vibrate in place, meaning the answer is C

The molar concentration of acid in the aliquot before putting it in acetone is

Titration is defined as 'the process of determining the quantity of a substance A by adding measured increments of substance B, the titrant, with which it reacts until exact chemical equivalence is achieved (the equivalence point)'.

Dilution equation is given as:

\(M_1\)\(V_1\) = \(M_2\)\(V_2\) , where M = Molarity and V = Volume. Applying the formula we get: 0.04M × 1ml = \(M_2\) × 1Oml

⇒ \(M_2\) = 0.04M × 1ml

                  10ml

⇒ \(M_2\) = 0.004M

Therefore 0.004M will be the molar concentration of acid in the aliquot before putting it in acetone.

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Answer:

C: Ability to react. Sorry if its wrong!

Explanation:

The lewis electron-dot diagram which represents the bonding in potassium iodide, KI is give in image attached.

The correct answer choice is option 1.

The lewis structure can simply be defined as those diagrammatic chemical representations which describes the bonding between atoms in a particular molecular structure of a chemical substance. From the context of the above given task, the structure is bonded by eight different electrons.

The importance of lewis electron-dot structures cannot be overemphasized. Some of its significances are as follows:

In conclusion, we can now confirm from the explanation given above that potassium iodide is solid chemical compound.

The complete image of the options of the question is also attached.

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Answer:

paper burning is chemical property because burning is a chemical reaction.  salt being a solid is a physical property because phases of matter are physical properties of matter

Answer:

answer  in ppicture

Explanation:

According to markovnikov's rule of the electrophilic addition to an alkene, the electrophile, usually a proton, is more likely to add to the less-substituted carbon in a double bond.

With additional substituents present in this configuration, the intermediate carbocation is stabilised by being located on the more-substituted carbon.

The nucleophile will then end up in a double bond on the more-substituted carbon in a reaction that follows Markovnikov's rule.The outcome of some addition reactions is described by Markovnikov's rule or Markownikoff's rule in organic chemistry. Vladimir Markovnikov, a Russian scientist, created the rule in 1870.

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Answer:

thermal shock

Explanation:

the temperatures inside the glass jar should have continued to increase over time. Internal stresses due to uneven heating. This is also known as “thermal shock”.

In general, the thicker the glass, the more prone it will be to breaking due to the immediate differences in temperature across the thickness of glass.

Borosilicate glass is more tolerant of this, as it has a higher elasticity than standard silicon glass.

You may also note that laboratory test tubes and flasks are made with thinner walls, and of borosilicate glass, when designated for heating.

When referring to chemical substances put into the environment by human activity, the term "polluted" typically refers to the presence of harmful or undesirable substances in an environment, such as air, water, or soil.

Pollution occurs when pollutants, which can be solid, liquid, or gaseous substances, are introduced into the environment in quantities that exceed the natural or acceptable levels, causing negative effects on living organisms, ecosystems, or the environment as a whole.

Pollution can be caused by various human activities, including industrial processes, transportation emissions, improper waste disposal, agricultural practices, and more. The pollutants released into the environment can include toxic chemicals, heavy metals, gases, particulate matter, pesticides, fertilizers, and other harmful substances.

The impact of pollution can be detrimental to human health, as well as the health of plants, animals, and ecosystems. It can lead to a range of environmental issues such as air pollution, water pollution, soil contamination, habitat destruction, and climate change.

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The new volume of the bag : 747.43 ml

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

\(\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}\)

V₁=250 ml

T₁=19+273=292 K

T₂=600+273=873 K

\(\tt V_2=\dfrac{V_1.T_2}{T_1}\\\\V_2=\dfrac{250\times 873}{292}\\\\V_2=747.43~ml\)

The balanced chemical equation for the reaction between sulfuric acid and sodium chloride to produce hydrogen chloride gas and sodium sulfate is:

2H₂SO₄ + 2NaCl -> 2HCl + Na₂SO₄

The equation given above is:

Sulfuric acid + sodium chloride -> hydrogen chloride + sodium sulfate

Therefore, In this equation, sulfuric acid (H₂SO₄) is the acid and sodium chloride (NaCl) is the base. The acid donates protons (H+ ions) to the base, resulting in the production of hydrogen chloride gas (HCl) and a salt (Na₂SO₄).

The overall reaction is an example of an acid-base reaction, in which the acid and base react to produce a salt and a neutralization product (in this case, HCl).

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See full question below

When sulfuric acid is added to solid sodium chloride and the mixture is heated, hydrogen chloride gas is generated, leaving a solid residue of sodium sulfate. Give the balanced chemical equation for this reaction.

Soil erosion is basically the soil being deteriorated by the gradual impact of water or wind to it, being a very mechanical situation, where water or wind will hit the soil, detaching some particles and making the soil weaker. The main cause will be hits from water or wind. Deforestation will have a huge impact on erosion, since the soil where trees are taken down is more likely to receive impacts from wind or water, if the trees were left in their place, they would be used as a "shield" for the soil

Answer:

27

Explanation:

base on what u have see in the pictorial.

The volume of the liquid in the graduated cylinder shown below is 28 milliliters.

The graduated cylinder is also known as the measuring cylinder which is used to measure the volume of the liquids to perform the experiments in the laboratory as the quantity varies of everything for experiments.

The marks written on it show us the amount of liquid filled in the milliliters they can be from 10 milliliters to 50 milliliters made up of glass but sometimes made up of fiber too and the marks give the amount of liquid.

Therefore, the volume of the liquid in the graduated cylinder shown below is 28 milliliters.

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The pillar of sustainability broken by recycling electronics in India is environmental sustainability. Implementing a law that restricts electronics recycling to the US would not necessarily be the most effective solution, as it overlooks the complex global dynamics of electronic waste management.

Recycling electronics in India often involves improper disposal methods, such as burning or dismantling without proper safety measures. This leads to environmental pollution, including the release of hazardous substances into the air, soil, and water, thus violating the principle of environmental sustainability.

However, simply mandating that electronics can only be recycled in the US may not be the most optimal solution. Electronic waste is a global issue, and restricting recycling to a single country disregards the fact that electronic products are manufactured and consumed worldwide. A more comprehensive approach to addressing electronic waste would involve international cooperation, strict regulations, and monitoring of recycling practices to ensure they meet environmental standards.

Efforts should focus on improving recycling practices globally, including promoting responsible electronic waste management, developing sustainable recycling infrastructure in multiple countries, and encouraging the adoption of safe and environmentally friendly recycling practices. This approach would foster global sustainability and address the challenges associated with electronic waste disposal more effectively than a geographically limited restriction.

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1 mole is equal to 6.023 × 10 ²³ molecules. 8.8 moles in 5.31x10^25 particles of Mg.

The term mole is defined as the amount of substance of a system which contains as many elementary entities.

One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.

1 mole of any substance = 6.023 × 10²³ molecules

1 mole of Mg (magnesium) = 6.023 × 10²³ molecules

Then 5.31x10^25 particles of mg = ?

Therefore,

5.31 x 10^25 particles of mg = 5.31 x 10²⁵ × 1 mole / 6.023 × 10²³

= 8.8 moles

Thus, 8.8 moles in 5.31x10^25 particles of Mg.

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Answer:Answer

The more active the metal, the more easily it gives up its electron(s). Thus, for number 1, nickel is the only metal of the options that is more active than copper and is the only metal that would give up electrons for copper. For number 2, aluminum is the only metal that is less active than magnesium and is the only metal that would not donate electrons to magnesium.

Explanation:

Answer:

false i am pretty sure because dead flowers.

Answer:

The heavier the molecules, the slower they move - the lighter the molecules, the faster they move. Nitrogen molecules weigh about 28 units. Chlorine molecules weigh 71 units. So we would expect nitrogen to diffuse more quickly than chlorine.

Answer:

Nitrogen weights 28 units and chlorine is 71 units . In that case nitrogen will diffuse faster

Answer:

B)

Explanation:

The mass remains the same before the reaction and after. A chemical reaction takes place when vinegar and baking soda are mixed. One of the new substances formed is carbon dioxide gas. If the carbon dioxide gas is contained, the mass of the substances will stay the same according to the Law of Conservation of Mass

Answer:

B is the correct option.

Explanation:

The system is a closed one because Alison closed the container with a balloon immediately. With this mass can't change and law of conservation of mass states in chemical change, mass in neither created nor destroyed.

A double replacement reaction will occur is a precipitate is formed, or a gas is formed, or a solvent is formed.

Solvent is a substance that is capable of dissolving other substances, resulting in a homogeneous mixture. Solvents are used in many industrial and household processes, including cleaning, extraction, and purification. Common solvents include water, alcohols, ketones, acids, and bases. Solvents can be used to dissolve both organic and inorganic substances. They are often used to separate mixtures of different substances, as well as to dissolve and purify them. Some solvents are miscible with one another, while others are not. Solvents can also be used to dissolve and disperse solids in a liquid.

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Answer:

how will water affect the force of friction

90% sure

Which statement about photosynthesis is FALSE?

Answer:

b. Oxygen is needed as a reactant to produce

glucose is the incorrect statement here

Explanation:

plants uses simple raw materials to prepare their food , which includes water ( H2O ) and Carbon dioxide ( CO2 ).

and traps sunlight by Green pigments known as chlorophyll and stores these energy in bonds of glucose molecules

so ,

after this reaction glucose and oxygen is formed as products

● hence we conclude that Oxygen is not needed as a reactant to produce glucose , oxygen is the bi product formed during photosynthesis.

Determining the molar concentration of solutes within zucchini cells would require specific experimental measurements. Without specific data or experimental results, it is not possible to provide an accurate molar concentration of solutes within zucchini cells.

The molar concentration of solutes within cells can vary depending on various factors, including the specific solutes present, their concentrations, and the conditions of the cells.

To determine the molar concentration of solutes within zucchini cells, experimental techniques such as cell fractionation, cell extraction, and subsequent analysis using techniques like chromatography, spectrophotometry, or mass spectrometry may be necessary.

If you have specific data or experimental results related to the solute concentrations in zucchini cells, I would be happy to assist you further in interpreting or calculating the molar concentration based on that information.

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The following statements are true for ELISA:

II. Analyte is incubated with antibody 1, binding to form a complex. The fraction of antibody 1 sites bound to the analyte is proportional to the concentration.

III. Unbound substances are flushed from the ELISA surface, and a second antibody, antibody 2, which binds to a different region of the analyte, is applied to the antibody 1-analyte complexes.

IV. Antibody 2 is chemically modified to include an enzyme that converts a colorless reagent to a colored reagent. The more bound analyte, the more intense the color generated.

ELISA (Enzyme-Linked Immunosorbent Assay) is an immunoassay technique used to detect and quantify specific proteins or other analytes in a sample.

In ELISA, the analyte of interest is captured by an immobilized specific antibody (antibody 1) that binds to it. The binding between antibody 1 and the analyte forms a complex, and the amount of analyte bound is proportional to its concentration.

After removing unbound substances, a second antibody (antibody 2), which binds to a different region of the analyte, is introduced. Antibody 2 is conjugated with an enzyme that can catalyze a color-producing reaction.

The presence of the analyte-bound antibody 2-enzyme complex leads to the generation of a colored product. The intensity of the color produced is directly proportional to the amount of analyte present in the sample.

Therefore, ELISA combines specific antibody-antigen binding, washing steps to remove unbound components, and enzymatic detection to provide a quantitative measurement of the analyte concentration.

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Answer and Explanation:

The answers would be:

A. Domestic cats live in about 34% of homes in the United States. (Statistical statements are, most of the time, facts and not an opinion)

C. Modern domestic cats are closely related to Near Eastern wildcats. (Fact)

D. Cats eat rodents that can spread disease. (Fact)

The above statements are facts because they don't make a judgement or show a position on the topic, only show what is known and proven to be true.

B and E are incorrect because they take a side of the topic, in which someone else might disagree with the opinion. These opinions aren't proven to be true.

#teamtrees #PAW (Plant And Water)

I hope this helps!