You look through a microscope and see a cell which has a membrane bound vacuole, mitochondria, and a nucleus. You infer that the cell must be.....

A. planaria

B. prokaryotic

C. eukaryotic

D. amoeba

The terms that best describe the isomeric relationship between staggered and eclipsed ethane are B: "conformational, achiral, diastereomers."

An isomeric relationship refers to the relationship between two or more chemical compounds having the same molecular formula but differing in the arrangement of their atoms. Isomers can be classified into different types such as structural isomers, stereoisomers, and conformational isomers based on the differences in their molecular structure.

In the context of this question the isomeric relationship between staggered and eclipsed ethane is described as "conformational, achiral, diastereomers.

You can learn more about  isomeric relationship at

https://brainly.com/question/29033187

#SPJ4

Explanation:

noble gases are useful let's take for instance helium which is used in balloons. they are used to form inert atmosphere and they are used also to deter chemical reaction.

Answer:

On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.

Explanation:

Make sure to edit so you don't get copy-writed.

The pH of the solution made by dissolving 135 g of sulphuryl chloride in water to make 1 dm^3 of solution will be acidic.

To calculate the pH of the solution made by dissolving 135 g of sulphuryl chloride (SOCl2) in water to make 1 dm^3 of solution, we need to consider the hydrolysis reaction of sulphuryl chloride with water:

SOCl2 + 2H2O → H2SO4 + 2HCl

In this reaction, sulphuryl chloride reacts with water to form sulphuric acid (H2SO4) and hydrochloric acid (HCl).

First, we need to determine the number of moles of sulphuryl chloride in the solution. To do this, we divide the given mass of sulphuryl chloride by its molar mass:

Molar mass of SOCl2 = 32.5 g/mol + 2 × 35.5 g/mol = 118.5 g/mol

Number of moles of SOCl2 = Mass / Molar mass = 135 g / 118.5 g/mol = 1.14 mol

Since we are dissolving 1.14 mol of sulphuryl chloride in 1 dm^3 of solution, the concentration of sulphuryl chloride is 1.14 M.

Now, we can consider the hydrolysis reaction. The hydrolysis of sulphuryl chloride produces hydrochloric acid, which is a strong acid. When a strong acid is completely dissociated in water, it results in a solution with a low pH. Therefore, the pH of the solution will be acidic.

For more such questions on pH visit:

https://brainly.com/question/12609985

#SPJ8

Answer:

it's non-spontaneous

Explanation:

I hope it helps you

The energy produced by burning : -32.92 kJ

Delta H reaction (ΔH) is the amount of heat change between the system and its environment

(ΔH) can be positive (endothermic = requires heat) or negative (exothermic = releasing heat)

The enthalpy and heat(energy) can be formulated :

\(\tt \Delta H=\dfrac{Q}{n}\rightarrow n=mol\)

The enthalpy of combustion of naphthalene (MW = 128.17 g/mol) is -5139.6 kJ/mol.

The energy released for 0.8210 g of naphthalene :

\(\tt Q=\Delta H\times n\\\\Q=-5139.6~kJ/mol\times \dfrac{0.8210~g}{128.17~g/mol}~\\\\Q=-32.92~kJ\)

Answer:

log = ( - 0.51 z 2) / ( 1 + ( / 305)

Explanation:

The density of the metal is 2.7 g/cm3. The object will sink in water because it is heavier than water.

The density of a substance is the ratio of the mass of the substance and its volume.

The density of a substance is mathematically expressed as:

Density = mass/volume. The unit is g/cm3

The volume of the cylindrical metal can be determined in this case from the attributes given.

Height = 2.03 inches = 5.16 cm

Diameter = 17.0 mm = 1.7 cm

radius = 1.7/2 = 0.85 cm

Volume of a cylinder = πr2h

                          = 22/7 x 0.85 x 0.85 x 5.16 = 11.7169 cm3

Mass of the metal = 31.599 g

Density of the metal = mass/volume = 31.599/11.7169 = 2.7 g/cm3

The density of water is 1 g/cm3. This means that the metal is heavier than water and will, therefore sink in it.

More on density can be found here: https://brainly.com/question/15164682

#SPJ1

Answer:

mitosis

Explanation:

Answer:

A small amount of chemical splashes in Frank's eye. What should happen next? Frank should go to the eyewash station while his lab partner tells the teacher what happened.

Explanation:

Brainlist

Answer:

The answer to the question is 78

Answer:

78

Explanation:

In rounding off to two, we consider the third digit. if it is more than five we ad one to the second digit otherwise we truncate.

in the case of 77.616, we add one to the second digit and truncate the rest.

Substances in which atoms are  held together by polar covalent bonding is b)CsCl.So,correct option is b.

Polar covalent bond is a kind of compound bond where one sets of electrons is shared unevenly between two molecules. For instance, Hydrogen chloride (HCl) particle. The holding of hydrogen and chlorine iotas inclines more towards Cl particles since Cl is more electronegative in nature than hydrogen

Since Cs has one unpair of electron and Cl has five unpair electron. So, both of elements are favorable for formation of covalent bond.

Properties of Polar Covalent Compound

Hence,correct option is B.

To know more about polar covalent bond, visit here:

https://brainly.com/question/28295508

#SPJ4

Answer:

It is going to be binary

Explanation:

The final temperature of the granite and the water in the calorimeter is 8.4°.

We know that in accordance to the first law of thermodynamics, energy is neither created nor destroyed but it can be converted from one form to another. This implies that the heat that is lost by the granite has to be equal to the heat that is gained by the water in this case.

Knowing that;

H = mcdT

H = heat lost or gained

c = specific heat capacity of the substance

dT = temperature change

Heat lost by the granite = Heat gained by water

52.6 * 0.79 * (θ - 125) = 100 * 4.18 * (θ - 20)

41.6θ - 5200 = 418θ - 8360

Collecting the like terms

41.6θ  - 418θ =  - 8360 + 5200

-376.4θ =  -3160

θ = -3160/-376.4

θ = 8.4°

Learn more about calorimeter:https://brainly.com/question/4802333

#SPJ1

Answer:

otherwise you will be bord and have nothing to do

Explanation:

The reaction NO₂(g) + H₂O(l) 4 NO(g) + 2HNO3(aq) is not a Decomposition Reaction , Option E is the correct answer.

A reaction in which a substance break down into two or more substances is called a Decomposition Reaction.

In the given question

the reactions

CuSO4.5H₂O(s)--> CuSO4(s) + 5H₂O(g).

2PbO₂ (s) --> 2PbO(s) + O₂(g).

Fe(CO)(I)-->Fe(s) + 5CO(g).

H₂SO3(aq)-- >SO₂(g) + H₂O(l)

These are all Decomposition Reaction.

The only reaction which is not is the Reaction E

NO₂(g) + H₂O(l) 4 NO(g) + 2HNO3(aq)

To know more about Decomposition Reaction

https://brainly.com/question/8009068

#SPJ1

The conjugate acid-base pairs are ( HF, F⁻) and ( H₂O, H₃O⁺ )

A conjugate acid-base pair, as defined by Bronsted-Lowry, consists of two compounds that are distinct only in that they contain a proton (H⁺). The addition of a proton to a base results in the formation of a conjugate acid, while the removal of a proton from an acid result in the formation of a conjugate base.

The reaction becomes:

HF + H₂O → H₃O⁺ + F⁻

The conjugate acid-base pairs are ( HF, F⁻) and ( H₂O, H₃O⁺ )

Here,

To know more about conjugate acid-base refer to:

https://brainly.com/question/22514615

#SPJ1

The solubility of the salts is affected by the temperature changes. 1. NaCl is least affected by temperature. 2. supersaturated. 3. 60 grams KBr. 4. Ethanol has both polar and non-polar groups. 5. Mixing and shaking.

A KBr solution with 90 gm solute in 100 grams of water at 50 degrees is classified as supersaturated. 60 grams of KBr are needed to make a saturated solution in 100 gm of water at 30 degrees.

Ethanol is a general solvent due to the presence of both the polar and the non-Polar groups. As a result, it is easier to dissolve both polar molecules and non-Polar molecules. The dissolving rate can be increased by mixing or shaking the solution. Also, the sugar dissolves faster in hot than cold tea.

To learn more about the solubility, refer to the link:

https://brainly.com/question/31493083

#SPJ1

D, Li. When combined with Al(s), Li+ is more likely to be reduced.

To determine which of the given options would most likely be reduced when combined with Al(s), we can refer to the reduction potential chart. The reduction potential indicates the tendency of a species to gain electrons and undergo reduction.

From the options provided:

A. H+

B. K+

C. Fe

D. Li

Based on the standard reduction potential chart, we can compare the reduction potentials of these species to that of Al. The species with a higher reduction potential than Al is more likely to be reduced.

According to the chart, the reduction potential of Al is -1.66 V. Comparing this to the options:

A. H+ has a reduction potential of 0.00 V.

B. K+ has a reduction potential of -2.92 V.

C. Fe has a reduction potential of -0.44 V.

D. Li has a reduction potential of -3.04 V.

Among the options, the species with the highest reduction potential is Li, with a value of -3.04 V. This means that Li+ has a greater tendency to be reduced compared to Al.

Therefore, the correct answer is option D, Li. When combined with Al(s), Li+ is more likely to be reduced.

Know more about reduction here:
https://brainly.com/question/30281983

#SPJ8

Answer: F, O, N, C, B

Explanation: The element with the greatest electronegativity will have the smallest radius because it holds the electrons closest to the nucleus. Fluorine is the most electronegative element (it is in the upper right of the periodic table), Francium is the lease (it is the lower left of the periodic table). With this knowledge, you should be able to recognize a trend in the periodic table associated with atomic radius size and electronegativity.

This is an electrophilic addition of a hydrogen halide to an alkene.

The pi bond is attacked by the electrophilic H⁺ from the H⁺Cl⁻, resulting in the loss of the double bond and the formation of a tertiary carbocation on C2. A less stable carbocation intermediate with the positive charge on C3 is also formed.

The nucleophilic Cl⁻ then attacks the carbocations, forming the haloalkane products. The major product will be 2-chloro-2-methybutane, where the Cl is bonded to the most substituted C (Markovnikov's rule). The minor product, if you have to worry about it, will be 2-chloro-3-methylbutane. The major product has no stereoisomers to worry about as it's achiral.

The attached image shows the scheme of this reaction. Only the major product is shown.  

Answer:

true

Explanation:

I did the quiz and got it right

The type of compound represented by the graph at right is a strong acid (option B).

An acid is generally any compound capable of dissociating into its respective constituent ions when in an aqueous solution.

An acid is categorised as strong or weak depending on whether it can dissociate completely or partially. A strong acid dissociates completely in water.

According to this question, HA, when added to water, dissociates into H+ and A- ions, hence, is a strong acid.

Learn more about strong acid at: https://brainly.com/question/29769012

#SPJ1

Answer:

Accuracy is the degree of closeness to true value.

Precision is the degree to which an instrument or process will repeat the same value.

Hope it helps....

Answer:

Accuracy and precision are alike only in the fact that they both refer to the quality of measurement, but they are very different indicators of measurement. Accuracy is the degree of closeness to true value. Precision is the degree to which an instrument or process will repeat the same value

Answer:

1.Molar mass is the mass of a given substance divided by the amount of that substance, measured in g/mol. For example, the atomic mass of titanium is 47.88 amu or 47.88 g/mol. In 47.88 grams of titanium, there is one mole, or 6.022 x 1023 titanium atoms.

2.Percentage composition of a compound is a ratio of an amount of each element to the total amount of individual elements in a compound, which is then multiplied with 100. Let us take an example of H2O i.e. Water. Water has 2 molecules of hydrogen, and one mole of water is of 18.0152 grams.

The energy diagram given is for endothermic reaction process

This is characterized by the system to require more energy to form products.

In this question, specie A and B are the reactant while C is the product.

What happens in this type of reaction is that for products to be formed, the reaction has to attain activation energy which is used to break bonds and form products and this energy has to be gotten from outside the system in order for the reaction to proceed.

A student wants to know if the effect of gravity is the same on all objects. The next step should be she choose new balls. Therefore, option A is correct.

The force that pulls items toward the center of a planet or other entity is called gravity. All the planets are kept in orbit around the sun by gravity.

All objects with mass, including our Earth, really bend and curve spacetime, which is what causes gravity to pull you toward the ground. What you experience as gravity is that curvature.

The force holding the gases in the sun is just one illustration of the gravitational field. the power behind a ball's descent after being thrown into the air. the force that makes an automobile coast downhill even when the gas is not depressed.

Thus, option A is correct.

To learn more about gravity, follow the link;

https://brainly.com/question/4014727

#SPJ5