Question 2 of 10 A scientist is interested in designing an alternative cancer treatment involving a less harmful type of radiation. What should her next step be? A. Look into the needs society has for drugs that can treat a variety of diseases. O B. Set up a test trial for her new treatment. C. Begin radiation treatments on new patients. O D. Look at how radiation interacts with cancer cells. SUBMIT​

Answer:

Distillation

Explanation:

In order to turn seawater into freshwater you have to remove the dissolved salt in seawater. That may seem as easy as just boiling some seawater in a pan, capturing the steam and condensing it back into water (distillation).

Answer:

petroleum

Explanation:

usually found sedimentary rock.

definition: a liquid mixture of hydrocarbons that is present in certain rock strata and can be extracted and refined to produce fuels including gasoline, kerosene, and diesel oil, oil

WebMO's IR frequencies for OH and C=O functional groups can be inaccurate due to limitations in empirical force fields, inadequate consideration of hydrogen bonding effects, and challenges in selecting appropriate levels of theory and basis sets.

IR frequencies calculated using the WebMO software package can be particularly inaccurate for OH (hydroxyl) and C=O (carbonyl) functional groups. This can be attributed to a few factors. Firstly, WebMO, like many other software packages, relies on empirical force fields to calculate molecular vibrations. These force fields are based on predetermined parameters and assumptions about bond lengths, angles, and force constants. While they work well for many functional groups, the complex nature of OH and C=O vibrations may not be accurately captured by these force fields.

Secondly, OH and C=O groups exhibit strong hydrogen bonding interactions, which can significantly affect their vibrational frequencies. However, the empirical force fields used by WebMO may not fully account for these hydrogen bonding effects, leading to inaccuracies in the calculated IR frequencies.

Furthermore, the accuracy of IR frequency calculations can also depend on the level of theory chosen and the basis set used in the calculations. Different levels of theory and basis sets have varying degrees of accuracy and computational cost, and choosing the appropriate combination for accurate OH and C=O vibrational frequencies can be challenging.

In conclusion, the inaccuracies in WebMO's IR frequencies for OH and C=O functional groups can be attributed to the limitations of empirical force fields, the inadequate consideration of hydrogen bonding effects, and the challenges in selecting appropriate levels of theory and basis sets.

Know more about Frequencies here:

https://brainly.com/question/29739263

#SPJ11

Answer:

Nikola Tesla

Explanation:

He made electricity major, he invented the first AC, and developed AC generation and transmission tech.

Answer:

Mechanical energy is energy that results from movement or the location of an object. Mechanical energy is the sum of kinetic energy and potential energy.

Explanation:

Nuclear energy is energy resulting from changes in the atomic nuclei or from nuclear reactions.

Example: Nuclear fission, nuclear fusion, and nuclear decay are examples of nuclear energy. An atomic detonation or power from a nuclear plant are specific examples of this type of energy.

Answer:

Explanation:

a i think

Answer:

it would (a)

Explanation:

carcinogen is a substance that gives your tissues a higher chance of getting cancer

The standard enthalpy change of the explosive reaction is -11408 kJ/mol.

The standard enthalpy change of the reaction can be calculated using the enthalpy of formation values of the reactants and products.

The enthalpy of the formation of ammonium nitrate (NH4NO3) is -393.5 kJ/mol, the enthalpy of the formation of the fuel oil (C10H22) is -249.7 kJ/mol, the enthalpy of the formation of oxygen (O2) is 0 kJ/mol.

The enthalpy of the formation of nitrogen (N2) is 0 kJ/mol, the enthalpy of the formation of water (H2O) is -285.8 kJ/mol, and the enthalpy of the formation of carbon dioxide (CO2) is -393.5 kJ/mol.

The equation for the explosive reaction is 3NH4NO3(s)+C10H22(l)+14O2(g)>3N2(g)+17H2O(g)+10CO2(g). Therefore, the standard enthalpy change of the reaction can be calculated using the following equation:

ΔH = [3(-393.5) + (-249.7) + (14*0) + (3*0) + (17*-285.8) + (10*-393.5)] - [3(-393.5) + (-249.7) + (14*0)]

ΔH = -11408 kJ/mol.

Therefore, the standard enthalpy change of the explosive reaction is -11408 kJ/mol.

For more questions like Enthalpy change click the link below:

https://brainly.com/question/29556033

#SPJ4

The complete question is attached below.

Answer:

1 - Evaporation

2 - Evapotranspiration

3 - Condensation

4 - precipitation

5 -  River Discharge

6 - Infiltration

Explanation:

I hope I'm right. Good luck.

The 180.15 grams of water produced from 5.0 moles of \(O2\) and 8.0 moles of \(H2\).

To solve this problem, we first need to write the balanced chemical equation for the reaction between oxygen gas and hydrogen gas to produce water:

\(2 H2 + O2 → 2 H2O\)

According to the equation, 1 mole of \(O2\) reacts with \(2\) moles of \(H2\) to produce \(2\) moles of \(H2O\).

Therefore, we can use the mole ratios to determine how many moles of water are produced from 5.0 mol of \(O2\) and 8.0 mol of \(H2\):

From the balanced equation, we can see that 1 mole of \(O2\) reacts with \(2\) moles of \(H2\) to produce 2 moles of \(H2O\).

So, if we have 5.0 moles of \(O2\) and 8.0 moles of \(H2\), we have an excess of \(H2\). The limiting reagent in this reaction is \(O2\) , because we have less moles of \(O2\) than we need to react with all of the \(H2\).

To determine the amount of water produced, we need to use the mole ratio from the balanced equation:

moles of \(H2O\) = moles of \(O2\) x (\(2\) moles of \(H2O\) / 1 mole of \(O2\) )

moles of \(H2O\) = 5.0 mol \(O2\) x (\(2\) mol \(H2O\) / 1 mol \(O2\) )

moles of \(H2O\) = 10.0 mol \(H2O\)

Now we have the number of moles of water produced. To calculate the mass of water, we need to use the molar mass of water, which is approximately 18.015 g/mol:

mass of \(H2O\) = moles of \(H2O\) x molar mass of \(H2O\)

mass of \(H2O\) = 10.0 mol \(H2O\) x 18.015 g/mol

mass of \(H2O\) = 180.15 g

Learn more about water produced

brainly.com/question/2126065

#SPJ11

The order in which one molecule of glucose undergoes cellular respiration is: glycolysis, pyruvate oxidation, citric acid cycle, and electron transport chain.

In cellular respiration, one molecule of glucose goes through four main processes in a specific order. Here is the order in which these processes occur:

1. Glycolysis: This is the first step in cellular respiration and takes place in the cytoplasm. During glycolysis, one molecule of glucose is broken down into two molecules of pyruvate. This process does not require oxygen and yields a small amount of ATP.

2. Pyruvate oxidation: After glycolysis, the pyruvate molecules produced move into the mitochondria. In this step, each pyruvate molecule is oxidized, releasing carbon dioxide and generating acetyl CoA. This process occurs in the presence of oxygen.

3. Citric acid cycle (also known as the Krebs cycle): Acetyl CoA enters the citric acid cycle, which takes place in the mitochondria. In this cycle, acetyl CoA is further broken down, releasing carbon dioxide and generating ATP, NADH, and FADH2.

4. Electron transport chain: The NADH and FADH2 molecules generated during the previous steps carry their electrons to the electron transport chain, located in the inner mitochondrial membrane. Through a series of redox reactions, electrons are passed along the chain, creating a flow of protons across the membrane. This flow of protons drives ATP synthesis. At the end of the electron transport chain, oxygen accepts the electrons, forming water.

In summary, the order in which one molecule of glucose undergoes cellular respiration is: glycolysis, pyruvate oxidation, citric acid cycle, and electron transport chain.

Learn more about electron transport chain here:-

https://brainly.com/question/14416101

#SPJ11

The molar mass of insulin is approximately 0.798 g/mol, calculated using the equation for osmotic pressure and the given values of mass and volume.

To calculate the molar mass of insulin, we can use the equation for osmotic pressure:

π = (n/V)RT

where π is the osmotic pressure, n is the number of moles of solute, V is the volume of the solution in liters, R is the ideal gas constant, and T is the temperature in Kelvin.

First, convert the given values to appropriate units:

25.0 mg = 0.025 g
5.00 mL = 0.005 L

Next, rearrange the equation to solve for n (number of moles):

n = (πV) / (RT)

Substituting the given values:

n = (15.5 mmHg * 0.005 L) / ((0.0821 L·atm/(mol·K)) * 298 K)

Calculate n:

n ≈ 0.0313 mol

Finally, divide the mass of insulin (0.025 g) by the number of moles (0.0313 mol) to find the molar mass:

Molar mass = 0.025 g / 0.0313 mol

Molar mass ≈ 0.798 g/mol

So, the molar mass of insulin is approximately 0.798 g/mol.


Learn more about osmotic pressure here:

https://brainly.com/question/29823250

#SPJ11

Answer:

10 pounds

Explanation:

If the moon has 1/6 the gravity of earth, divide your weight on earth by 6 to find your weight on the moon

60 / 6 = 10 pounds

The activation of the serine/threonine protein kinase akt requires phosphoinositide 3-kinase (pi 3-kinase) to create phosphorylated lipids that serve as docking sites that localize Akt to the plasma membrane.

Ak strain changing is the meaning of the word Akt. The term "Akt" first appeared in 1928, when J. Furth conducted research on mice that spontaneously generated thymic lymphomas.

An essential enzyme in the signaling pathway that controls how cells react to insulin as well as other growth stimuli is called phosphoinositide 3-kinase (PI3K). To create phosphatidyl-inositol-3,4,5-trisphosphate (PIP3) at the plasma membrane, one such enzyme phosphorylates phosphatidylinositol-4,5-bisphosphate in the third carbon in the molecule.

Therefore, The activation of the serine/threonine protein kinase akt requires phosphoinositide 3-kinase (pi 3-kinase) to create phosphorylated lipids that serve as docking sites that localize Akt to the plasma membrane.

To know more about protein kinase akt

https://brainly.com/question/17092864

#SPJ4

The molecular shapes which have the most electron pairs (both shared and unshared) around the central atom are linear-shaped.

The molecular shapes are the shapes like linear, trigon planner, octahedral, tetrahedral, etc. which depend on the number of atoms and the lone pair and bond pair of atoms.

In linear shape, a maximum number of electrons take part in the hybridization and can also have lone pairs to give repulsion to the bond pairs of the atoms.

Therefore,  linear-shaped are the molecular shapes that have the most electron pairs (both shared and unshared) around the central atom.

Learn more about  molecular shapes, here:

https://brainly.com/question/22697472

#SPJ4

Answer:

Even though plants are rooted in the ground, they still move, exert force, and do work.

Plant cells have very strong cell walls that allow pressure to build up inside of the cell as water is absorbed. This pressure is called turgor.

When turgor pressure is high enough in a cell, the cell walls become firm and as a result, the cell becomes rigid and the plant is able to stand tall and straight.

When a plant does not get enough water, the turgor pressure inside of the cells decreases. A decrease in pressure pushing against the cell wall causes the cells to lose their shape and shrink. This causes the plant to begin to droop or wilt.

When the wilted plant gets enough water, the cells will become rigid again, and the plant will stand firm and straight once again.

Explanation:

Answer:

See below

Explanation:

13.  The molar mass of Cl2 is 70.9 grams/mole.  Mass of 0.560 moles:

(0.560 moles)*(70.9 grams/mole) = 39.7 grams Cl2

14.  2 moles of M93N2 has 2*2 = 4 moles of N atoms

15.   2.00 moles Mg3N2 has 2*2 = 4 moles N atoms

16.  9.0 grams of Ag.  The molar mass of silver is 107.9 g/mole.  9.0 grams means that there is (9.0g/(107.9 g/mole) = 0.0834 moles Ag.  

   (0.0834 moles Ag)*(6.022x10^23 Ag atoms/mole) = 5.02x10^22 atoms of silver

The mass of 0.560 moles of chlorine gas is 39.7 g. There are 6.00 moles of Mg atoms and 4.00 moles of N atoms respectively in 2.00 moles of Mg3N2 compound. The number of atoms in 9.0 g of silver can be calculated by converting the grams to moles then multiplying by Avogadro's number.

The mass of chlorine gas can be calculated by multiplying the given moles with the molar mass of chlorine. The molar mass of chlorine (Cl2) is approximately 70.9 g/mol. Therefore, the mass of 0.560 moles of chlorine gas would be 0.560 * 70.9 = 39.7 g.

For Mg3N2, there are 3 moles of Mg per mole of Mg3N2, so there are 2.00 * 3= 6.00 moles of Mg atoms in 2.00 moles of Mg3N2. Similarly, there are 2 moles of N per mole of Mg3N2 so, there are 2*2.00 = 4.00 moles of N atoms in 2.00 moles of Mg3N2.

The number of atoms in silver can be calculated using Avogadro's number, which is 6.02 x 10^23 atoms per mole. First convert the mass to moles (silver has a molar mass of approximately 107.87 g/mol) and then multiply by Avogadro's number.

https://brainly.com/question/33652783

#SPJ6

To test the hypothesis, you will observe the changes during the experiment and use these observations to compare the properties before and after the chemical change of the substance.

In order to test the hypothesis, one needs to observe and compare the properties of the substance before and after a chemical change occurs. Chemical changes involve the formation of a new substance with different properties from the original substance. Observing changes such as color, odor, temperature, or physical state can help identify whether a chemical change has occurred.

After the chemical change, the properties of the new substance can be compared to the original substance to determine if there has been a change in properties. If the new substance has different properties than the original substance, it would support the hypothesis that a chemical change results in the formation of a new substance with different properties.


To know more about the Chemical change, here

https://brainly.com/question/14767020

#SPJ1

Answer:

1. initial appearance

2. final appearance

Explanation:

did the test!

Answer:

4.4 g

Explanation:

The equation of the reaction is;

NaHCO3 (aq) + CH3COOH (aq) ----> CO2 (g) + H2O (l) + CH3COONa (aq)

Mass of baking soda - 4.5 g

Molar mass of NaHCO3 = 84.007 g/mol

Number of moles of baking soda= 4.5 g/84.007 g/mol = 0.0536 moles

If 1 mole of NaHCO3 yields 1 mole of CH3COONa

0.0536 moles of NaHCO3 also yields 0.0536 moles moles of CH3COONa

Hence;

Theoretical yield of CH3COONa =  0.0536 moles * 82.0343 g/mol = 4.4 g

endothermic

requires energy to occure

Polar aprotic solvents play an important role in the Sn2 reaction by enhancing its rate. One of the reasons for this is that polar aprotic solvents lower the energy of the nucleophile. So, the correct option is "lowering the energy of the nucleophile".

This is because polar aprotic solvents are not able to form hydrogen bonds with the nucleophile, which allows the nucleophile to exist in a more reactive state.

Additionally, polar aprotic solvents do not stabilize the cations and anions that are formed during the reaction. This allows the reaction to proceed more quickly since there is no delay caused by the stabilization of these intermediates.  Another reason why polar aprotic solvents enhance the rate of the Sn2 reaction is that they do not change the polarizability of the nucleophile. This means that the nucleophile is able to effectively attack the substrate without being hindered by any changes in its structure or properties.

Finally, polar aprotic solvents raise the energy of the nucleophile, which makes it more reactive and more likely to participate in the reaction. Overall, polar aprotic solvents are important in the Sn2 reaction because they enhance the rate of the reaction by allowing the nucleophile to exist in a more reactive state, without hindering its polarizability or stability. So, the correct option is "lowering the energy of the nucleophile".

For more such questions on polar aprotic solvents

https://brainly.com/question/29346943

#SPJ11

Answer:

3.5 Kilometers

Explanation:

If he goes 7k an hour, then 30 minutes is half of that.

Hope this helps! :)

Answer:

3.5 km

Explanation:

91 is the proton number and 36 is the neutron. fusion has a nearly limitless source of fuel and produces less radioactive material than fission, it presents an intriguing option.

Thus, The challenges in using fusion offset these advantages. It is expensive to produce the ideal circumstances for a fusion reaction, and these reactions are difficult to regulate.

While scientists continue to work on managing nuclear fusion in an effort to create a fusion reactor that can produce electricity, research into improved ways to harness the power of fusion is still in the experimental stages.

Nuclear reactions that produce energy include both fission and fusion, although the methods are very dissimilar. A heavy, unstable nucleus can fission into two lighter nuclei, while two light nuclei can fuse together.

When two low-mass isotopes, usually hydrogen isotopes, combine at extremely high pressures and temperatures, fusion occurs.

Thus, 91 is the proton number and 36 is the neutron. fusion has a nearly limitless source of fuel and produces less radioactive material than fission, it presents an intriguing option.

Learn more about Fusion, refer to the link:

https://brainly.com/question/31756416

#SPJ1

Answer:

By changing the distribution of heat and wind across the Pacific, El Niño alters rainfall patterns for months to seasons. As the warm ocean surface warms the atmosphere above it, moisture-rich air rises and develops into rain clouds.

pls mark me brianliest

Pls rate me

To find the value of x, we need to calculate the mass of water lost during the drying process.

Given that the initial mass of the sample (Cocl2 . x H2O) is 2.00 g, and the mass of the anhydrous salt (Cocl2) is 1.565 g, we can calculate the mass of water lost by subtracting the mass of the anhydrous salt from the initial mass of the sample:

Mass of water lost = Initial mass of sample - Mass of anhydrous salt
Mass of water lost = 2.00 g - 1.565 g
Mass of water lost = 0.435 g

Since 1 mole of water (H2O) has a molar mass of approximately 18 g, we can calculate the number of moles of water lost:

Moles of water lost = Mass of water lost / Molar mass of water
Moles of water lost = 0.435 g / 18 g/mol
Moles of water lost ≈ 0.02417 mol

Now, since the formula for hydrated cobalt(II) chloride (Cocl2 . x H2O) indicates that there is 1 mole of Cocl2 for every x moles of water, we can set up the following equation:

0.02417 mol water lost / x = 1 mol Cocl2 / 1 mol water

Simplifying the equation, we have:

x = 0.02417 mol water lost / 1 mol Cocl2

Therefore, the value of x is approximately 0.02417.

To know more about mass of water, visit:

https://brainly.com/question/26789700

#SPJ11

Amine does not always have a double bond.

Learn more about amine here:

https://brainly.com/question/25049288

#SPJ4