Relative humidity changes with _______________. Group of answer choices removal of water vapor from the air decreases in temperature all of the above increases in temperature addition of water vapor to the air

Answer:

The Size of the Planet is little related to the thickness of the atmosphere because larger sized planets are able to hold more lighter gas because they have higher gravity influence due to larger planet. This inner planets have smaller atmosphere compared to the outer planets.

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To calculate which solution will have the smaller freezing-point depression between the two solutions, one with 100.0 g of methanol in 500.0 g of water and the other with 200.0 g of methanol in 500.0 g of water, we need to consider the concept of freezing point depression.

Freezing point depression is a phenomenon in which the freezing point of a solution is lower than that of the pure solvent. It depends on the concentration of the solute, in this case, methanol.

Solution 1: 100.0 g methanol in 500.0 g water
Solution 2: 200.0 g methanol in 500.0 g water

Comparing the two solutions, Solution 1 has a lower concentration of methanol than Solution 2. Therefore, Solution 1 will have a smaller freezing-point depression compared to Solution 2, since the freezing point depression is directly proportional to the concentration of the solute in the solution.

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Answer:

you stink at

Explanation:

Answer:

Sodium reacts with the oxygen in air. It reacts vigorously with oxygen and the moisture that is already present in the air and thus catches fire.

It would be a bad idea to make coins made of sodium metal, beacause of their reactive nature.

Those species which are not stable in nature and always ready to show reaction with another species, is known as reactive species.

Sodium metal is highly reactive in nature, means it easly reacts with the atmospheric oxygen and shows oxidation or with the moisture content of atmosphere as a result of which vigorously catches fire. That's why we don't use sodium to make coin.

Hence, beacause of reactive nature sodium is not used.

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Answer:

In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll.

Explanation: Hope this helps

Their bonds are polar because every oxygen has a delta - and every carbon has a delta +. an element with the chemical symbol C and indeed the isotope 6 Tetravalent, nonmetallic, and it.

Metals are melted down using coke & charcoal, both of which are impure forms of carbon. It is especially important there in steel and aluminium industries. Graphite can be found in electric motor brushes, furnace linings, and pencil leads. Activated charcoal is used for filtering and purification.

poisonous nature of carbon. Thousands of fatalities occur each year in North America as a result of the odourless gas carbon monoxide. Inhaling carbon monoxide is exceedingly dangerous. It is the main cause of poisoning deaths in the country.

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The p-value is greater than the significance level of 0.05, we do not reject the null hypothesis and conclude that all proportions are equal.

Firstly, let us conduct a Chi-square test of independence of categorical variables based on the information given above. We have three different cases of hypothesis testing that we have to solve one by one.

Case 1: HD​:pSun ​=rhoMan ​=pTue ​=pWed ​=pThu ​=pFri ​=pSat ​=71​
Ha​ : Not all proportions are equal.

Test Statistic
For this hypothesis, we need to compute the test statistic that is given as:
\($$\chi^2=\sum_{i=1}^{k}\frac{(O_i-E_i)^2}{E_i}$$\)  where k is the number of groups/categories. Since we have 7 days of the week, \(k = 7. $O_i$ and $E_i$\) are the observed and expected frequencies respectively.  
Here, we have equal proportions of 71 for each day of the week.
Therefore, the expected frequencies are also equal to 71.
\($$E_i = 71, i=1,2,3,4,5,6,7.$$\)

We also have to use the given information to compute the observed frequencies,
\($O_i$.$$O_1 = 90, O_2 = 99, O_3 = 122, O_4 = 123, O_5 = 130, O_6 = 160, O_7 = 126$$\)

Therefore, the test statistic can be computed as \($$\chi^2=\frac{(90-71)^2}{71} + \frac{(99-71)^2}{71} + \frac{(122-71)^2}{71} + \frac{(123-71)^2}{71} + \frac{(130-71)^2}{71} + \frac{(160-71)^2}{71} + \frac{(126-71)^2}{71}$$$$\chi^2=180.14\)

Now we have to find the p-value of this test. Since the number of degrees of freedom is k - 1 = 7 - 1 = 6, the p-value can be found using the chi-square distribution table with 6 degrees of freedom at the 0.05 significance level. The p-value is 0.000014. ConclusionSince the p-value is less than the significance level of 0.05, we reject the null hypothesis and conclude that not all proportions are equal.

The total number of accidents is \($$90+99+122+123+130+160+126=850$$\)

The percentage of accidents occurring on each day of the week can be found as follows:
\($$Sunday: $$\frac{90}{850}\times 100 = 10.59\%$$Monday: $$\frac{99}{850}\times 100 = 11.65\%$$Tuesday: $$\frac{122}{850}\times 100 = 14.35\%$$Wednesday: $$\frac{123}{850}\times 100 = 14.47\%$$Thursday: $$\frac{130}{850}\times 100 = 15.29\%$$Friday: $$\frac{160}{850}\times 100 = 18.82\%$$Saturday: $$\frac{126}{850}\times 100 = 14.82\%$$\)

From the above percentages, we can see that Friday has the highest percentage of traffic accidents.

Case 2:
HD​: Not all proportions are equal.

Ha​:pSun ​=pMon ​=pTue ​=rhoWed ​=pThu ​=rhoFri ​=rhoSat ​=71

Test Statistic

\($$E_1 = 78.57, E_2 = 86.57, E_3 = 106.86, E_4 = 107.43, E_5 = 113.57, E_6 = 139.43, E_7 = 109.14$$\)

We already know the observed frequencies,
\($$O_1 = 90, O_2 = 99, O_3 = 122, O_4 = 123, O_5 = 130, O_6 = 160, O_7 = 126.$$\)

The test statistic can be computed as:

\($$\chi^2=\frac{(90-78.57)^2}{78.57} + \frac{(99-86.57)^2}{86.57} + \frac{(122-106.86)^2}{106.86}+ \frac{(123-107.43)^2}{107.43} + \frac{(130-113.57)^2}{113.57} + \frac{(160-139.43)^2}{139.43} + \frac{(126-109.14)^2}{109.14} $$$$ \implies \chi^2=34.98$$\)
The p-value is 0.000001.
Conclusion- Since the p-value is less than the significance level of 0.05, we reject the null hypothesis and conclude that not all proportions are equal.

Case 3:

All proportions are equal.
Test Statistic
The expected frequency for each group is
\(E = \frac{850}{7} = 121.43\)
We already know the observed frequencies,
\($$O_1 = 90, O_2 = 99, O_3 = 122, O_4 = 123, O_5 = 130, O_6 = 160, O_7 = 126.$$\)

The test statistic is,

\($$\chi^2=\frac{(90-121.43)^2}{121.43} + \frac{(99-121.43)^2}{121.43} + \frac{(122-121.43)^2}{121.43} + \frac{(123-121.43)^2}{121.43} + \frac{(130-121.43)^2}{121.43} + \frac{(160-121.43)^2}{121.43} + \frac{(126-121.43)^2}{121.43}} \\\implies \chi^2=9.17$$\)

The p-value is 0.1664.

Since the p-value is greater than the significance level of 0.05, we do not reject the null hypothesis and conclude that all proportions are equal.

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The atomic number of Potassium(K) is 19

Knowing the number of electrons in the K atom is necessary before we can write the potassium(K) electron configuration.

There are 19 electrons. All 19 electrons will be positioned in orbitals surrounding the nucleus of the potassium(k) atom when the configuration is written.

there are some steps:

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Answer:

fewer peaches will be sold

Explanation:

if the price increases less people will want to buy it, but the orchards would still get money so they wouldnt be affected

Answer:

fewer peaches

Explanation:

Answer:

C: It traps pathogens in oil and sweat

Explanation:

The skin has oil and sweat which kills pathogens as they are like a waterbarrier.

The skin protects the body from pathogens by trapping pathogens in oil and sweat produced by glands. Thus, the correct option for this question is C.

Pathogens may be defined as those living organisms which are capable of inducing diseases in other living organisms including humans. Some examples of pathogens include bacteria, fungi, protozoa, etc.

Skin is considered the first line of defense against pathogens in humans. This is because skin significantly consists of sebaceous and sweat glands that consistently secrete oils and sweat that trap the pathogens and eliminate them from entering the body.

Therefore, the skin protects the body from pathogens by trapping pathogens in oil and sweat produced by glands. Thus, the correct option for this question is C.

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The statement that best describes the charges of the particles is : ( A ) A neutral particle is striking a positive particle, breaking it into more

The collision of Neutral and postitve particles leads to the production of more negative and positive particles. Due to the neutral force and this leads to the production of an electrical charges.  

Hence a neutral particle striking a positive particle will lead to the production of more positive particle.

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Charles law states that there is a directly proportional relationship between the volume and the temperature of the gas at certain pressure.

Therefore,

V1/T1 = V2/T2

V1 is unknown

T1 = 159K

V2 = 15.5m3

T2 = 456K

V1/159 = 15.5/456

V1 = (15.5*159)/456 = 5.404m3.

When the volume of a gas is changed from 5.404 m3 to 15.5 m3 the temperature will change from 159 K to 456 K.

Answer:   Because planets do not have nuclear fusion, they do not produce their own light. Instead, they shine with light reflected from a star. When we see planets in the night sky, such as Venus, the so-called "Evening Star," we're seeing reflected sunlight.

Explanation:

The equation that depicts a single replacement reaction would be: Zn(s) + 2HCl(aq)→ ZnCl2​​​(aq) ​​​​+ H2(g)

They are also known as single displacement reactions.

They are reactions in which one element takes the place of another in a compound. That is, one element replaces another in a compound.

Looking at all the reactions from A - D, one can see that the only reaction that exemplifies a single replacement reaction is D.

Here, Zn replaced H in HCl.

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To combat the most common adverse effects of chemotherapy, a nurse should administer an : Antiemetics.

Antiemetics will most likely be given to chemotherapy patients to treat nausea and vomiting, and up to three antiemetics may be used. The most common serotonin receptor blockers are:

Some patients experience nausea and vomiting prior to the infusion. An anti-anxiety medication such as Ativan may be beneficial. A suppository can be used in patients who are already vomiting. Nausea and vomiting can occur before, during, or after chemo treatment. Therefore, to combat the most common adverse effects of chemotherapy, a nurse should administer an antiemetics.

Alternatives to Drugs :

Along with antiemetics, acupressure wristbands, which are available at most pharmacies, may provide some relief.

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Due to his table-style representation of all known elements, Russian chemist Dmitri Mendeleev gained prominence in 1869. Every substance has a set of fundamental building blocks.

What components are described?

An element is a basic item that really is difficult to break down into smaller pieces. In chemistry and physics, an element is considered a component if non-nuclear reactions cannot destroy it. In computers and mathematics, an element is a discrete part of a larger structure or collection.

What types of elements are there?

Metals, quasi, and metalloid are the three types of elements. On the far left of the periodic chart are metals like salt, calcium, caesium, etc. The quasi, including such charcoal, chloride, and air, are usually referred as the elements on the correct side.

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To solve this question we have to convert the given mass of litium hydroxide to moles using the molecular mass of this compound:

Now, use the stoichiometric ratio given by the chemical equation:

Finally, convert the moles of CO₂ to g using the molecular mass of CO₂:

The mass of carbon dioxide required to react with 80.5g of LiOH is 73.92g.

Answer:

The light microscope bends a beam of light at the specimen using a series of lenses to provide a clear image of the specimen to the observer.

Answer:

Blank 1 - Microscope

Blank 2 - Cell Theory

Explanation:

Answer:

microscope. and cell theory

Explanation:

with the invention of the microscope. scientists were able to create cell theory

If Planck's constant were approximately 50% bigger, atoms would be smaller. This is because Planck's constant plays a role in determining the energy levels and wavelengths of electrons in an atom.

With a larger Planck's constant, the energy levels and wavelengths would be smaller, meaning the electron orbits would be smaller and closer to the nucleus. This would result in a smaller overall size for the atom.

Planck's constant, denoted as "h," is a fundamental constant of nature that relates the energy of a photon to its frequency. It was first introduced by German physicist Max Planck in 1900 to explain the behavior of electromagnetic radiation emitted by heated objects, known as blackbody radiation.

The value of Planck's constant is approximately 6.626 x 10^-34 joule-second (J s). It is a key parameter in quantum mechanics and plays a critical role in determining the energy levels of atoms and molecules, the behavior of electrons in solids, and the functioning of many modern technologies, such as lasers, LEDs, and solar cells.

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Remove FeSCN+2 Fe+ (aq) + SCN (aq) → FeSCN+2 (aq) is the observing a red-brown color in the reaction.

Thus, Le Chatelier's Principle states that the body will respond to reduce stress. Since Fe3+ is a reactant in this reaction, the forward reaction will proceed at a faster pace in order to "use up" the extra reactant.

The equilibrium will change to the right as a result, producing more FeSCN2+. As the solution darkens in color, we will be able to see that this particular reaction has taken place.

Rightward shift in equilibrium. When the product side of equilibrium shifts, the forward response is preferred.

Thus, Remove FeSCN+2 Fe+ (aq) + SCN (aq) → FeSCN+2 (aq) is the observing a red-brown color in the reaction.

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The incorrect statement concerning the addition of a catalyst to an equilibrium reaction system is option c: the catalyst speeds up the attainment of equilibrium.

A catalyst does not affect the position of equilibrium or the equilibrium constant, but only speeds up the forward and reverse reactions to the same extent. Therefore, the equilibrium is reached at the same rate with or without a catalyst.

A catalyst works by lowering the activation energy required for the reaction to occur, thereby increasing the rate of both the forward and reverse reactions. It does not affect the thermodynamics of the reaction or the position of equilibrium. Catalysts are important in industry because they allow reactions to occur at lower temperatures and pressures, which can reduce costs and improve efficiency.

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Answer:

Telescopes have opened our eyes to the universe. Early telescopes showed that Earth was not the center of the universe, as was previously believed. They also showed mountains and craters on the moon. Later telescopes have revealed geography and weather on the planets in our solar system.

Explanation:

A formula that lists the relative amounts of the constituent components in a compound without specifying the number or configuration of atoms. The empirical formula is , thus option (d) is correct.

The formula that shows the ratio of elements present in the compound, but not the actual numbers of atoms found in the molecule. Empirical formula seems to be a compound chemical formula that only specifies the ratio of elements it contains, not the precise number as well as arrangements of atoms. This corresponds to compound elements with the smallest whole number ratio.

Empirical, molecular as well as structural formula are still the three basic category the easiest whole number ratio of a compound is shown by empirical formula. The number including each variety of atom in a molecule is shown by molecular formula, and the bonds between atoms in a molecule is shown by structural formula.

Thus, option (d) empirical formula  is  C₄H₂O₂ correct.

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Answer:

it will form an ionic bond

Answer:

Seasonal Winds: Blow in opposite direction of normal winds  and cause droughts in winter.

Prevailing Winds: Blow mainly in one direction and move huge air masses.

Mountain Ranges: force coastal air masses to rise, cool, and  form rain clouds.

Explanation:

Hope this helps you, sorry for responding so late... have an amazing night, day, or evening

The term precipitation implies the falling of rain due to condensation of water vapor in the cloud.

The term precipitation implies the falling of rain due to condensation of water vapor in the cloud.  We must note that several factors affect precipitation in a given area.

The following phrases below are matched with how it affects precipitation;

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Given what we know, we can confirm that when forming an expanded octet, selenium hexafluo ride will hold 6 pairs of shared electrons around its center selenium atom.

Therefore, given that during an expanded octet formation, the central atom is capable of holding more than 8 valence electrons in its outer shell, the central atom of a selenium hexafluo ride compound will have 12 electrons being shared, which results in 6 pairs, making C the correct answer.

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Answer:

Explanation:

The term change of phase means the same thing as the term change of state. ... i.e. during phase change, the energy supplied is used only to separate the molecules ; no part of it is used to increase the kinetic energy of the molecules. So its temperature will not rise, since kinetic energy of molecules remains the same.