/Why does an atom want all of it’s orbitals filled
Why does it want to be in a stable state

Answer:

Wind farms, nuclear power plant, and hydroelectric power plants

Explanation:

Winds farms:

Pros: Creates electrical energy easily, doesn't cause pollution and no fossil fuels.

Cons: Only works in windy climates, hard to function.

Nuclear plants:

Pros:Creates electrical energy out of wastes, very easy and doesn't require fossil fuels.

Cons: Causes mass pollution, very harmful to the ecosystem and humans.

Hydroelectric plants:

Pros: uses only water and turbines, no fossil fuels either.

Cons: Water usage causes faster evaporation, most dams overuse them.

Answer:

1,3,2

Explanation:

N2 + 3H2-----> 2NH3

Answer:

yeah its newton's third law

Explanation:

Lemonade that has been refrigerated continuously will keep for 7 to 10 days after opened.

To extend the shelf life of opened lemonade, freeze it: to freeze lemonade, store in an airtight container with at least 1/2-inch headspace at the top, because lemonade expands when frozen. Lemonade that has been left out for more than two hours (including overnight) should be discarded unless it is in an unopened, shelf-stable package. Even if there are no signs of spoilage, the lemonade may contain dangerous levels of bacteria and toxins produced by those bacteria.

Learn more about Lemonade here:

https://brainly.com/question/24155405

#SPJ4

Ans 1:

Ammonia is not collected over water since it is highly soluble in water

Ans 2:

Ammonia gas is lighter than air and hence collected by the downward displacement of air.

Ans 3:

The carbon dioxide is very cold as it comes out of the extinguisher, so it cools the fuel as well.

Ans 4:

H₂SO₄ is not used in the preparation of carbon dioxide Because the calcium sulphate formed is insoluble in water. So, CO₂ will not form.

Ans 5:

The opening of hard glass test tube is slanted down during laboratory preparation of ammonia gas because Ammonia gas is not collected in the gas jar by upward displacement of air because it is lighter than air

Ans 6:

Magnesium is reactive enough to be combusted and oxidized in a reaction with carbon dioxide:

The magnesium strip burns brightly in the air, but continues to burn in the carbon dioxide environment

-TheUnkownScientist

Explanation:

Blood Provides the Body's Cells with Oxygen and Removes Carbon Dioxide. Blood absorbs oxygen from air in the lungs. It transports the oxygen to cells throughout the body, and it removes waste carbon dioxide from the cells.

Your blood carries oxygen and nutrients to all of the cells in your body. Blood cells also fight infection and control bleeding.

C. If  blood pressure decreases, filtration in the kidneys decreases.

D. If more blood returns to the heart, the ventricles contract more forcefully to pump it out, and this raises blood pressure.

The maintenance of blood pressure is defined as the high use of sodium in your diet and the low use of potassium in your diet can cause hypertension. It is also important to use those foods which are free from fats. It is also important that we should use fruits, vegetables, and grains in excessive amounts for the maintenance of blood pressure and for a healthy diet.

High blood pressure 190/110 mm Hg can cause the main vital organs of the body like the brain, heart, and kidney too. There are three factors that contribute to blood pressure which are resistance, blood viscosity, and blood vessel diameter.

So we can conclude that blood pressure is the pressure of circulating blood against the walls of the blood vessels.

Learn more about Blood Pressure here: https://brainly.com/question/25149738

#SPJ1

Which of the following statements are true of the maintenance

of blood pressure (BP)? (Read carefully and select all of the correct statements.)

A. Norepinephrine stimulates vasoconstriction in skin, viscera, and skeletal muscles, all of which lower BP.

B. Aldosterone stimulates the reabsorption of Na+ ions by the kidneys, which lowers BP.

C. If BP decreases, filtration in the kidneys decreases.

D. If more blood returns to the heart, the ventricles contract more forcefully to pump it out, and this raises BP.

E. If BP decreases, the kidneys secrete the enzyme renin, which stimulates the secretion of epinephrine to prevent a further decrease.

F. The hormone ANP increases the excretion of K+ ions by the kidneys, which helps conserve water and raise BP.

G. The hormone ADH helps the kidneys conserve water and helps prevent a decrease in BP.

H. The elasticity of the large arteries helps decrease diastolic BP.

Answer:

A I think

Explanation:

The radioactive decay expected from 28/13 Al should be (5)  0/-1 β

Aluminum-27 is the stable isotope of aluminum. The aluminum-28 isotope will develop if the neutron count is increased by one. The neutron-to-proton ratio is enhanced in this isotope, making the nucleus radioactive. The beta decay of this nucleus causes the neutron-to-proton ratio to decrease in order to achieve the desired outcome.

The decay process of Al-28 is as follows:

²⁸₁₃Al  →  ²⁸₁₄Si + ⁰₋₁e

One neutron decays into a proton and a beta particle in this process. The ratio of neutrons to protons drops as a result of a one-for-one change in the number of neutrons and the number of protons.

Complete Question

The only stable isotope of aluminum is aluminum-27. What type of radioactive decay should be expected from 28/13 Al?

1. 4/2 He

2. 1/0 n

3. 0/+1 β

4. 1/1 H

5. 0/-1 β

You can also learn about radioactive decay from the following question:

https://brainly.com/question/25455333

#SPJ4

The conjugate base of HSO³⁻ is SO₃²⁻. This is because when HSO₃⁻ loses a proton (H⁺), it forms the negatively charged ion SO32−. Therefore, the chemical formula for the conjugate base of HSO₃⁻ is SO₃²⁻.

The species that remains after an acid donates a proton (H⁺) is called conjugate base and it is formed by removing proton from the acid molecule. For example, conjugate base of acid HCl (hydrochloric acid) is Cl⁻ (chloride ion).

So, the conjugate base of HSO₃⁻ (hydrogen sulfite ion) is formed when it loses a proton (H+). The resulting chemical formula for the conjugate base is SO₃²− (sulfite ion).

To know more about conjugate base, refer

https://brainly.com/question/30882762

#SPJ11

ΔHrxn < 0 because the Ionization Energy1 for Rb is less than the Ionization Energy1 for Na

Ionization energy can be simply stated as a measurement of an atom's or ion's inclination to give up an electron or of how challenging it is to remove an electron from them. An electron is often lost when a chemical species is in its ground state.

IE declines in a group from top to bottom.

IE1 for Rb is less than the IE1 for Na.

Rb----------> Rb+ + e-         IE1 = 403 kJ/mol -----------  Eq (1)

Na----------> Na+ + e-      IE1 = 496 kJ/mol ------------- Eq (2)

Given reaction,

Rb(g) + Na+(g)  ?  Rb+(g) + Na(g)

Take Eq(1) same as above

Rb---------> Rb+ + e-         IE1 = 403 kJ/mol        

Take reverse of Eq (2)

Na+ + e-  ------------> Na     IE1 = - 496 kJ/mol

Hence,

Rb---------> Rb+ + e-         IE1 = 403 kJ/mol        

Na+ + e-  ------------> Na     IE1 = - 496 kJ/mol

Add above two equations

Rb(g) + Na+(g)  ?  Rb+(g) + Na(g)      

ΔHrxn = 403 kJ/mol  -  496 kJ/mol  = -93 kJ/mol

Therefore,

Ans is ΔHrxn < 0 because the IE1 for Rb is less than the IE1 for Na

Learn more about Ionization Energy:

brainly.com/question/28385102

#SPJ4

Answer:

Its C

Explanation:

If you look, you can see that it tells you the humidity and the that its warm but it also tells you that it storms a little to and that makes it easier to know the climate but if it just sayed it was warm that wouldn't be enough information

CAN I PLS HAVE BRAINLIEST. I NEVER GET IT. ITS A LITTLE CROWN UNDER MY ANSWER. PLS. ILL GIVE YOU BRAINLIEST JUST PLS

The variables of the ideal gas equation and their units of measurement are as follows:

The ideal gas equation is an equation that shows the relationship between the four parameters used in gas measurements.

The four variables are:

The ideal gas equation is given below:

PV = nRT

where:

Learn more about ideal gas equation at: https://brainly.com/question/12873752

#SPJ1

Answer:

35°C would have the highest velocity because it's temperature is lesser hence the inter molecular forces between it molecules will be stronger and the velocity of the molecules will be lower than the rest.

the 75°C one would have the highest flow rate because its molecules will have a higher velocity and the inter molecular force between them will be less stronger

The balanced chemical equation for the precipitation reaction that occurs when aqueous solutions of manganese(ii) chloride and potassium carbonate are combined is equals to the 2Cr³⁺ (aq) + 3 CO₃²⁻ → Cr₂(CO₃)₃(s).

Balanced Chemical Equation : If the species present in the reactants side and the products side separated by a right arrow contains equal number of atoms of all the type is known as the balanced chemical equation. The precipitation reaction that occurs when aqueous solutions of chromium (III) bromide and potassium carbonate are combined. First, we will write the molecular chemical reaction:

CrBr₃ (aq) + K₂CO₃(aq) → Cr₂(CO₃)₃(s) + KBr(aq)

Balanced chemical equation :

2CrBr₃ (aq) + 3K₂CO₃(aq) → Cr₂(CO₃)₃(s) + 6KBr(aq)

Balanced ionic chemical equation :

2Cr³⁺ (aq) + 6 Br⁻(aq) + 6 K⁺(aq) + 3 CO₃²⁻ → Cr₂(CO₃)₃(s) + 6K⁺(aq) + 6Br⁻(aq)

Net ionic equation:

2Cr³⁺ (aq) + 3 CO₃²⁻ → Cr₂(CO₃)₃(s)

Hence, the required balanced equation is 2Cr³⁺ (aq) + 3 CO₃²⁻ → Cr₂(CO₃)₃(s).

To learn more about balanced chemical equation, refer :

https://brainly.com/question/26694427

#SPJ4

Answer:

C. Rock, dust, and ice.

Explanation:

Comets are frozen leftovers from the formation of the solar system composed of dust, rock, and ices.

The pH and the pOH of an aqueous solution that is 0.045 M in HCl(aq) and 0.095 M in HBr(aq) at 25 °C is 1.35, and 12.98 respectively.

To calculate the pH and pOH of the solution, we need to use the concentration of the acidic solutions and the dissociation constants of HCl and HBr.

First, calculate the pH:

For HCl (aq):

[HCl] = 0.045 M

HCl is a strong acid and dissociates completely in water, so the concentration of H⁺ ions is equal to the concentration of HCl:

[H⁺] = 0.045 M

Taking the negative logarithm (base 10) of the H⁺ concentration gives us the pH:

pH = -log10(0.045)

pH = 1.35

Now, let's calculate the pOH:

For HBr(aq):

[HBr] = 0.095 M

HBr is also a strong acid, and its dissociation is similar to HCl. The concentration of H⁺ ions is equal to the concentration of HBr:

[H⁺] = 0.095 M

Again, taking the negative logarithm (base 10) of the H⁺ concentration gives us the pH:

pH = -log10(0.095)

pH = 1.02

Since pH + pOH = 14 (at 25 °C), we can calculate the pOH:

pOH = 14 - pH

pOH = 14 - 1.02

pOH = 12.98

Therefore, the pH of the solution is approximately 1.35, and the pOH is approximately 12.98.

To know more about aqueous solution here

https://brainly.com/question/1382478

#SPJ4

Answer:

43.76 g = 0.04376 Kg

Explanation:

The equation of the reaction is given as;

H2 + Cl2 --> 2HCl

From the equation;

1 mol of Cl2 produces 2 mol of HCl

Converting to mass;

Mass = Number of mol * Molar mass

Cl2;

Mass = 1 mol * 70.906 g/mol = 70.906 g

HCl;

Mass = 2 mol * 36.458 g/mol = 72.916 g

This means;

70.906 g of Cl2 produces 72.916 g of HCl

x g of Cl2 would produce 45g of HCl

70.906 = 72.916

x = 45

x = 45 * 70.906 / 72.916

x = 43.76g

To produce 1000 kg of fishmeal (M = 1000 kg), you would need 3000 kg of pasta. To determine the amount of pasta required to produce 1000 kg of fishmeal, we need to consider the mass balance of the process. Let's break down the steps involved:

A. Extraction of fish oil:

The pasta obtained from the extraction stage contains 20% flour and 80% water. To calculate the amount of pasta, we need to determine the mass of flour and water in the pasta. Let's assume the total mass of the pasta is P kg.

Mass of flour = 20% of P = 0.2P kg

Mass of water = 80% of P = 0.8P kg

b. Drying of pasta:

During the drying stage, the pasta is dried in a rotary drum, resulting in fishmeal with 40% humidity. This means that the final fishmeal will contain 60% dry matter.

Let's assume the mass of the dried fishmeal is M kg.

Mass of dry matter = 60% of M = 0.6M kg

Since the dry matter in the fishmeal comes from the flour in the pasta, we can equate the mass of dry matter to the mass of flour:

0.6M kg = 0.2P kg

To produce 1000 kg of fishmeal, we want to find the corresponding value of P:

0.6M = 0.2P

P = (0.6M) / 0.2

P = 3M

Therefore, to produce 1000 kg of fishmeal (M = 1000 kg), you would need 3000 kg of pasta.

To know more about mass balance, click here, https://brainly.com/question/17014679

#SPJ11

Answer:wont

Explanation:

The balanced equation of the chemical reaction would be \(2CH_3OH + 3O_2 -- > 2CO_2 + 4H_2O\)

In order to balance equations of reactions, the equations need to obey the law of conservation of atoms. According to this law, atoms can neither be created nor destroyed during reactions, but their forms may change. In other words, the total number of atoms of different elements in reactions is conserved.

Thus, the same number of atoms of different elements must exist in the reactants and the products, irrespective of their forms.

Following this rule, the balanced reaction of the equation illustrated in the problem would be: \(2CH_3OH + 3O_2 -- > 2CO_2 + 4H_2O\)

In the balanced equation, one can see that C, H, and O atoms in the reactants and the products are of equal numbers.

More on balancing equation of reactions can be found here: https://brainly.com/question/7181548

#SPJ1

Answer:

oil & mining are big in earth sciences

Answer:

false

Explanation:

there are lot of aspects of Mars that they are disconcerting still like scientists get paid a lot because of that astronomers get paid a lot because of that also.

The molar mass corresponds to the chlorofluorocarbon CF3Cl (Freon-11), which has a molar mass of 137.37 g/mol. Therefore, the chlorofluorocarbon in the experiment is CF3Cl.

The rate of effusion of a gas through a porous barrier is inversely proportional to the square root of its molar mass. Therefore, we can use the rate of effusion to determine the relative molar mass of the two gases and identify which one is a chlorofluorocarbon.

The rate of effusion can be calculated using Graham's law:

Rate of effusion = Volume of gas / Time taken to effuse

For the chlorofluorocarbon, the rate of effusion is:

Rate of effusion (CFC) = 50 mL / 157 s = 0.3185 mL/s

For argon, the rate of effusion is:

Rate of effusion (Ar) = 50 mL / 76 s = 0.6579 mL/s

Using Graham's law, we can set up the following equation:

Rate of effusion (CFC) / Rate of effusion (Ar) = sqrt(Molar mass (Ar) / Molar mass (CFC))

Solving for the ratio of molar masses:

Molar mass (Ar) / Molar mass (CFC) = (Rate of effusion (Ar) / Rate of effusion (CFC))^2

Molar mass (Ar) / Molar mass (CFC) = (0.6579 mL/s / 0.3185 mL/s)^2

Molar mass (Ar) / Molar mass (CFC) = 4.294

Molar mass (CFC) = Molar mass (Ar) / 4.294

The molar mass of argon is 39.95 g/mol. Therefore, the molar mass of chlorofluorocarbon is:

Molar mass (CFC) = 39.95 g/mol / 4.294 = 9.30 g/mol

To learn more about molar mass

https://brainly.com/question/13152455

#SPJ4

Understanding the relationship between reactants and products in a reaction is crucial for understanding chemistry. That is what stoichiometry is.

It is a quantitative relationship between the mass (and thus the number of moles) of different products and reactants in a chemical reaction.

Chemical reactions must be balanced, or in other words, the products and reactants must both contain the same number of different atoms.

A chemical reaction cannot yield any knowledge about the relationship between its products and reactants if it is not balanced. In order to balance a chemical reaction, you should do so initially.

By placing coefficients in front of the reactants and products, we may balance processes. The stoichiometric coefficients are these values.

To know more about stoichiometry, please refer:

https://brainly.com/question/14935523

#SPJ4

Imagine A represents a heterogeneous mixture as it is a mixture composition that does not remain the same throughout the mixture whereas Imagine B represents a homogeneous mixture as it does not have any change or irregularity.

A homogeneous mixture is defined as having a fairly uniform form and composition, so many homogeneous mixtures are referred to as solutions whereas heterogeneous mixtures are defined as separate substances or phases. The three states or states of matter are gas, liquid and solid.

Some examples of mixtures that include mixtures of sand and water, mixtures of sugar and salt, and mixtures of lime juice and water.

In homogenous solution, particles are distributed uniformly and have uniform composition while in heterogenous solution, particles are distributed non-uniformly and have non-uniform composition

Thus, Imagine A represents a heterogeneous mixture as it is a mixture composition that does not remain the same throughout the mixture whereas Imagine B represents a homogeneous mixture as it does not have any change or irregularity.

Learn more about Homogenous mixture, here:

https://brainly.com/question/24898889

SPJ2

Answer:c

Explanation:

As the combined mass of the HCl and NaOH is 15 grams before the reaction. Therefore the mass after the reaction will be 15 grams according to the law of conservation of mass. Therefore, option (C) is correct.

Matter can be transformed form via physical changes and chemical changes from one form to another form, during any of these changes, the total mass is conserved. The same quantity of matter exists before and after the chemical or physical as none of the matter is created or destroyed.

The balanced equation between the reaction of HCl and NaOH:

\(HCl +NaOH \longrightarrow H_2O +NaCl\)

According to the law of conservation of mass, the mass of HCl and NaOH will be equal to the mass of the products water and NaCl.

As mentioned in the question the combined mass of HCl and NaOH measured before the reaction is 15 grams. Therefore, the mass of the products in the closed container will be equal to 15 grams as well.

Learn more about law conservation of matter, here:

brainly.com/question/23910777

#SPJ5

Your question was incomplete,  most probably the complete question was,

Fernando places 15 ml of HCl and 50 ml of NaOH in 100 ml of a beaker. He places them on a scale together and measures the combined mass of 15 grams.

After the HCl and NaOH react, Fernando measures the mass again. Using the mass before the reaction, what is the mass after the reaction? Remember, It is in a closed system.

A. 5.00 grams

B. 10.00 grams

C. 15.00 grams

D. 20.00 grams

Answer:

It heats up.

Explanation:

Because thermal energy is based off the temperature of an object and the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increase.

In this lab, a hydrometer is used to measure the density of sugar solutions. If the same hydrometer was used to measure the density of alcohol solutions, you would likely observe different readings due to the differences in density between sugar and alcohol solutions.

Here's a step-by-step explanation:

1. A hydrometer works by floating in a liquid and measuring the liquid's density based on the level at which it floats. The higher it floats, the lower the liquid's density, and vice versa.
2. Sugar solutions generally have a higher density than water because sugar molecules are dissolved in the water, increasing the overall mass per unit volume.
3. Alcohol solutions, on the other hand, usually have a lower density than water. This is because alcohol molecules are less dense than water molecules, resulting in a lower overall mass per unit volume when mixed with water.
4. When using the same hydrometer to measure the density of alcohol solutions, it would likely float higher in the alcohol solution compared to the sugar solution, indicating the lower density of the alcohol solution.

In summary, if the same hydrometer was used to measure the density of alcohol solutions, it would provide different readings compared to measuring sugar solutions, reflecting the differences in density between the two types of solutions.

learn more about hydrometer at https://brainly.com/question/31627581

SPJ11

Answer:

1: exothermic

2:hydrated iron (III) oxide

3:reactants

4:precipitate

5: hydrogen gas

Answer:1.exothermic

2.hydrated iron (III) oxide

3.reactants

4.precipitate

5. hydrogen gas