The ratio of the coefficients of two substances in a balanced chemical equation is called a?

Answer:

F1+ is the one that violates the octet rule

Explanation:

F1+  does not end up having 8 electrons in its valence shell, and there for violates the octet rule, for an atom to comply with the octet rule its charge must reflect the number of electrons it needs to gain or lose to make an octet, but F1+'s charge does not reflect the number of electrons it needs to be stable or have an electron configuration of a noble gas

As per the given data, 1.6 grams of oxygen reacted in this experiment.

To calculate the amount of oxygen that reacted in the experiment, we need to determine the difference in the mass of X oxide (X,O) formed and the mass of X initially used.

Given:

Mass of X = 4.6 g

Mass of X oxide (X,O) = 6.2 g

To find the amount of oxygen that reacted:

Mass of oxygen = Mass of X oxide - Mass of X

= 6.2 g - 4.6 g

= 1.6 g

Therefore, 1.6 grams of oxygen reacted in this experiment.

Calculate the mass of 1 mole of X:

Given that the mass of X is 4.6 g, we can calculate the molar mass of X by dividing the mass by the number of moles:

Molar mass of X = Mass of X / Number of moles of X

Molar mass of X = 4.6 g / 0.1 mol

Molar mass of X = 46 g/mol

Therefore, the mass of 1 mole of X is 46 grams.

Thus, the answer is 46 grams.

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the coefficient in front of H2O and so that you have an even number of oxygen

to balance H2O = H2 + O2 you will need to be sure to count all of H and O atoms on each side of the chemical

Answer:  **

H-N-H

   |

  H

Explanation:

Look at a periodic table to determine how many electrons you need to account for. Hydrogen (H) only has 1 electron, while Nitrogen (N) has 5. We have three Hydrogen atoms and one Nitrogen atom, so the total number of electrons will be 3 * 1 + 5 = 8 e-.

Now, place the center atom, which will be Nitrogen and place the three Hydrogens on three sides of it as above in the answer. You should use single bonds for this. Each single bond is a pair of electrons, so since we have three single bonds so far, we have accounted for 2 * 3 = 6 electrons. However, we need 2 more electrons for the total of 8. We put these electrons in as a lone pair above Nitrogen.

We check to see if everything follows the octet rule: Nitrogen has three single bonds, so that's 6 e-, as well as one lone pair, so that's another 2 e- for a total of 8 e-. Check. Now look at Hydrogen: H is the only element whose full orbital is 2 e-. Each H has a single bond with Nitrogen, so each does have 2 e-.

Thus, we know this is the correct diagram, and we are done.

Explanation:

A bond line structure of a compound has H N H in linear plane and a hydrogen is branching upward, and the compound is H N (H) H. The nitrogen has two dots at its bottom represents a lone pair of electrons. So ,the correct answer is option C.

The correct Lewis structure for ammonia (\(NH_3\)) is option C. It shows a bond line structure with three hydrogen atoms (H) bonded to a central nitrogen atom (N) in a linear plane.

One hydrogen atom branches upward from the plane. Additionally, the nitrogen atom in this structure has two dots at its bottom, indicating a lone pair of electrons. This arrangement follows the octet rule, as nitrogen has formed three covalent bonds with hydrogen, completing its valence shell. The lone pair on nitrogen gives ammonia its characteristic properties.

Thus, option C accurately represents the Lewis structure of ammonia, showing the bonding and lone pair arrangement of its atoms.

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Answer:

Science: A Boon or a Curse The word science literally means knowledge. The modern age is an age of science. Science is the greatest boon to the modern world. Modern discoveries and inventions have increased human comforts and happiness. The first thing that man learnt to do was to Conquer Nature. He can now sail the vast oceans fly in the air travel underground and do a lot more things. Inventions like the telephone mobile computer etc. have changed mans forever. There have been inventions and discoveries in all aspects of life. Science has worked greater miracles in the field of health and medicine. Science has been the greatest weapon in Mans battle against diseases of various kinds. Technology is on a rise everyday. Each new day brings better technology with it. So we can say that science is a boon to human life.

Explanation:

......

Answer:

The science which has been of such great assistance to mankind

has another face too. There is evidently a drastic change in the

lives we are leading today and that we had some years ago.

Science which has bestowed us with development, progress,

expansion and growth has also rendered us with hostilities,

violence, ruin, devastation and bloodshed. George Bernard Shaw

has rightly said

“Science… never solves a problem without creating ten more.”

Gone is the age of steam. We are now in the age of hydrogen

bombs and electricity. The most fantastic dreams of HG Wells in

his novel: “The Dream” have come true. In this space age, where

the wonders of science excel the wonders of nature, science

affects our day-to-day life. Science has surpassed the old cobwebs

of mythology and yesterday’s faith has proved to be today’s

superstition in the crucible of science.

Yet the problem is whether science is a boon or bane to society.

Science nurtures intelligence but leaves the will and emotions

uncared for. As Helen Keller has quoted

“Science may have found a cure for most evils, but it has found no

remedy for the worst of them all- the apathy of human beings.”

Science triumphs in automating processes but now it reigns over

man. Automation is the order of the day. The specter of war and

destruction haunts the world and nobody is safe. Controlling

scientific knowledge with moral judgement may be a solution to

this dilemma. Audio-visual appliances annihilate times and

distances. But more valuable than these concrete achievements is

the spirit of science. Science means systematised knowledge. It

finds the causes of phenomena, and works through observation

and experiments. Science is the torch-bearer of the civilisation.

Is science really a bane? As religion is a Matter of Faith, in the

same way science is a Matter of Fact. Modern warfares are

destructive beyond the wildest dreams of our unscientific

predecessors. Machine guns, shells, submarines, the atom

hydrogen bombs and nuclear weapons can destroy the world in the

twinkling of an eye. Aeroplanes in war act as engines of mass

destruction. Not only in times of war but in times of peace also

man lives in the midst of diseases. Through cures are being

invented, diseases are multiplying too.

Man has manipulated deserts, hills, mountains, oceans, ice

covered regions, all of them, in accordance with his needs; and

has exploited animals to their extinction. Man has constructed

whole new islands for himself; but global warming is a big threat to

the already existing lands. Man has invented radiations and lasers

only to prove harmful to human body than being beneficial. Science

has made modern man’s life simpler but has loaded it with huge

tensions and threats.

Science is the greatest blessing that man could ever receive. It is

indeed a boon and a blessing, if used for the benefit of mankind

and for constructive purposes unless it becomes a tool in the hand

of a few selfish and evil-minded people. When used as a weapon

to destroy, create fear, spread violence and annihilate people, then

science becomes a double-edged sword destroying even the

perpetrator. It is thus in our hands to make science a blessing for

humanity or to convert it into a curse, a bane and destroy even the

footprints of mankind on this planet.

you can pick from any of those point since they are much. please rate it 5 stars and Mark as brainliest

Answer:

pH = 5.54

Explanation:

The pH of a buffer solution is given by the Henderson-Hasselbach (H-H) equation:

For acetic acid, pKa = 4.75.

We calculate the original number of moles for acetic acid and acetate, using the given concentrations and volume:

The number of CH₃COO⁻ moles will increase with the added moles of KOH while the number of CH₃COOH moles will decrease by the same amount.

Now we use the H-H equation to calculate the new pH, by using the new concentrations:

In the liquid state, the pentane molecules move past one another but are held close together.

The liquid phase is a phase of matter that is made of molecules that in motion but do not posses as much kinetic energy as the molecules of gases. Thus implies that the molecules are able to translate.

Hence, the pentane molecules move past one another but are held close together.

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Allene (1,2-propadiene) has point group D2d, itself is achiral because it has two planes of symmetry. ... An allene with substituents on one terminal carbon atom are unlike and substituent on other terminal carbon atoms are same, allene will be achiral. It will have one symmetry plane.

Hope this helped :)

Answer:

I'm not really sure how but here's the formula?

To calculate theoretical yield first check chemical equations are balanced.  Calculate the mole ratios of the reactants and products, Find the theoretical yield of the reaction.

Percent Yield = Mass of Actual Yield / Mass of Theoretical Yield x 100 percent.

The theoretical yield is the quantity of product that stoichiometry predicts will be produced, whereas the actual yield is the amount that is actually produced.

The yield of a reaction is used to represent how much of a product is produced from that reaction.

Thus, Divide the ratio by the limiting reactant's molecular weight. The answer is the theoretical yield of the desired product in moles.

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Answer:

I would say A.

Explanation:

Answer:

true

Explanation:

The given reaction equation tells us that for every 1 mol of C₅H₁₂, 5 moles of CO₂ will be produced. Since 8.25 mol of C₅H₁₂ is given, 8.25 mol C₅H₁₂ x 5 moles CO₂/1 mol C₅H₁₂ = 41.25 moles CO₂ will be produced.

Reaction is the process of responding to an event or stimulus in a particular way. It can occur at the physical, cognitive, or emotional level. Physically, a reaction could be as simple as a reflex or as complex as a multi-step process. Cognitively, it could involve forming a judgment or understanding. Emotionally, it could involve feelings of fear, shock, anger, or joy. In the context of science, reactions are often chemical or physical processes that involve the conversion of one set of substances into another.

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Answer:1. metyletevinyl

4. (Z)-3-hydroxypropenal

Explanation:

BaSO4 (s) + Cu(NO3)2 (aq)  and KCl (s) + Mg3(PO4)2 (s) is the product of given precipitation reactions.

Ba(NO3)2 (aq) + CuSO4 (aq) → BaSO4 (s) + Cu(NO3)2 (aq)

 K3 PO4 (aq) + MgCl2 (aq) → KCl (s) + Mg3(PO4)2 (s)

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Answer:

To obtain one mole of copper atoms (6.02 x 1023 atoms), ... mol Ag? (b) How many atoms of Ag are in 0.0342 mol Ag? 7 ... contain one S atom and two O atoms; calculate its molar mass.

The equation; NH3(aq) + H3O^+(aq) ⇄ NH4^+(aq) + H2O(l) and NH4^+(aq) + OH^- ⇄ NH3(aq) + H2O(l) show how a buffer solution containing NH3  and  NH4^+ mitigates against changes in acidity or alkalinity.

A buffer is a solution that mitigates against changes in acidity and alkalinity. A buffer solution is usually composed of a weak acid and its conjugate base or a weak base and its conjugate acid.

In this case, NH3 is a weak base and NH4^+ is its conjugate acid.

When an acid is added to the system;

NH3(aq) + H3O^+(aq) ⇄ NH4^+(aq) + H2O(l)

When a base is added;

NH4^+(aq) + OH^- ⇄ NH3(aq) + H2O(l)

By so doing, the solution mitigates against changes in acidity and alkalinity.

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Answer:

Endothermic. The energy is flowing into the molecules causing them to break apart and the ice pop change state.

Answer:

Yes, an autumn day isn’t cold enough to keep an ice pop at freezing temperatures.

Answer:

childhood trauma.

Explanation:

I took the test and the answer i got correct was Childhood trauma.

Answer:

Cu(NO3)2(aq)+Pb(s) ⇌ Pb(NO3)2(aq)+Cu(s)

Explanation:

If we look at the both reactions closely, we will quickly discover that the reaction CuSO4(aq)+Pb(s) ⇌ PbSO4(s)+Cu(s) involves PbSO4.

The compound PbSO4 is insoluble in water and sinks to the bottom of the reaction vessel. When this occurs, the concentration of Pb^2+ becomes low. This will bring about a low voltage in the cell.

On the other hand, Pb(NO3)2 is soluble in water hence the cell voltage in this case is higher than the former.

In the case when we look at both reactions so here we discovered that the reaction of

CuSO4(aq)+Pb(s) ⇌ PbSO4(s)+Cu(s) includes PbSO4.

The compound PbSO4 should be insoluble in water and sinks to the bottom of the reaction vessel. At the time When this occurs, the concentration of Pb^2+ becomes low. This will bring about a low voltage in the cell.

On the other hand, Pb(NO3)2 is soluble in water so the cell voltage in this case is more than the former.

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Answer:

0.125 mg

Explanation:

The correct answer would be 0.125 mg

According to the conversion factor, one milligram of a sample is equivalent to one thousand micrograms of the same sample.

milligram = \(10^{-3}\)

microgram = \(10^{-6}\)

Hence,

1 milligram = 1000 micrograms or 1 microgram = \(10^{-3}\) milligram

Therefore, 125 micrograms will be:

  125/1000 = 0.125 milligram

Answer:

5.15 moles

Explanation:

2zn + o2 = 2zno

5.15 2.57 5.15 moles

nzno=500/(16x2+65)= 5.15 moles

-> nzn = 5.15 x 2 ÷ 2 = 5.15 moles

Answer:

they can track the weather which can show if it would be posssible to live or have life on mars

Explanation:

The atoms that are the same element are atoms 1 and 2, because they have the same number of protons (option D).

Element is one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons.

The atoms of an element have the same number of protons, which is the atomic number.

According to the table given above, three atoms and their respective proton, electron and neutron number are given.

It can be said that atoms 1 and 2 are of the same element, because they have the same number of protons.

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If an anhydrous Cupric Perchlorate weighs 262.447g/mol initially and weighs 370.540 g/mol after sitting on the bench to absorb water from the air, the number of water molecules absorbed would be 6 moles.

First, let us calculate the amount of water gained during the course of staying on the bench:

Water gained = weight after gaining water - initial weight

                       =  370.540 - 262.447

                        = 108.093g/mole

The total amount of water gained per mol is 108.093. Each water molecule weighs 18.015 g/mole. Thus, the total number of water molecules that will sum up to 108.093 would be:

                         108.093/18.015 = 6 moles

In other words, the number of water molecules absorbed by the Cupric Perchlorate is 6 moles.

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Answer:

Br-CH2-CH(CH3)2-C(Cl)H-CH(CH3)2-CHO

Explanation:

The molecule has a total of 14 carbon atoms, 13 hydrogen atoms, and 1 bromine atom. The carbon atoms are arranged in a chain with a methyl group attached to the second carbon atom, a chlorine atom attached to the third carbon atom, and two methyl groups attached to the fourth carbon atom. The fifth carbon atom has a carbonyl group attached to it.

The molecule is an aldehyde, which means that it has a carbonyl group (C=O) at the end of the chain. The carbonyl group is polar, and the oxygen atom has a partial negative charge. The hydrogen atom has a partial positive charge. This polarity makes the aldehyde group susceptible to nucleophilic attack.

The bromine and chlorine atoms are both electrophilic, which means that they have a partial positive charge. This makes them susceptible to nucleophilic attack.

The methyl groups are non-polar and do not have any significant reactivity.

The molecule is a chiral molecule, which means that it has a mirror image that is not superimposable on itself. This is because the carbon atom with the carbonyl group is attached to four different groups.

The molecule is a liquid at room temperature and has a strong odor. It is used in a variety of products, including perfumes, flavorings, and plastics.

When dissolved in water, most Group 1 metal salts can be described as strong electrolytes.

When Group 1 metal salts are dissolved in water, they can be described as strong electrolytes. This is because Group 1 metals, such as lithium (Li), sodium (Na), potassium (K), and so on, readily lose their outermost valence electron to form positive ions (cations). These cations then dissociate completely in water, separating from the anions to which they were originally bonded.

The dissociation of Group 1 metal salts in water results in the formation of positively charged metal ions and negatively charged non-metal ions (anions). These ions are free to move and conduct electric current, making the solution a good conductor of electricity. The complete dissociation of Group 1 metal salts in water and the presence of freely moving ions make them strong electrolytes.

Strong electrolytes are substances that ionize completely or almost completely in solution, producing a high concentration of ions. This is in contrast to weak electrolytes, which only partially ionize and produce a lower concentration of ions.

In summary, when Group 1 metal salts are dissolved in water, they form strong electrolytes due to their ability to dissociate completely into ions, leading to a high concentration of freely moving ions in the solution, thus enabling efficient electrical conductivity.

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Answer:

1.9 x 10⁻¹³M

Explanation:

Given 0.027M Ca(OH)₂(aq) => 0.027M Ca⁺²(aq) + 2(0.027M) OH⁻(aq)

2(0.027M) OH⁻(aq) = 0.054M OH⁻(aq).

from [H⁺][OH⁻] = 1 x 10⁻¹⁴ at STP Conditions (0°C, 1Atm)

∴{H⁺] = [H₃O⁺] = (1 x 10⁻¹⁴/0.054)M = 1.85 x 10⁻¹³M or 1.9 x 10⁻¹³at 0°C & 1Atm pressure.

Answer:

The volume of Component 1 is 36 cubic inches.

Explanation:

To calculate the volume of a composite solid, we need to determine the individual volumes of the different components and then add them together.

In this case, the composite solid consists of multiple components with the following dimensions:

Component 1:

Length: 4 inches

Width: 3 inches

Height: 3 inches

To find the volume of Component 1, we multiply the length, width, and height together:

Volume of Component 1 = Length x Width x Height = 4 in x 3 in x 3 in = 36 cubic inches

Therefore, the volume of Component 1 is 36 cubic inches.

Please provide the dimensions of the remaining components of the composite solid, and I will calculate the total volume by summing up the individual volumes.

1. The constituent gases of air are:

2. The surrounding air is not seen with the eyes because it is transparent. Air molecules are not visible to the na-ked eye, and they do not scatter or absorb visible light significantly. Therefore, air appears colorless and transparent.

3. To prove that air supports burning, you can perform an experiment with a burning candle. Place a glass jar or bell jar over a lit candle, ensuring that the jar is airtight. As the candle burns, it consumes oxygen from the air inside the jar. Eventually, the candle flame will go out due to the lack of oxygen, proving that air (specifically oxygen) is necessary for burning.

4. To show that air occupies space, you can perform a simple experiment using a plastic bottle or syringe. Fill the bottle or syringe with water, ensuring there are no air bubbles. Then, cover the opening tightly and try to compress the air inside. You will find that it is not possible to compress the air significantly, indicating that air occupies space.

5. To prove that air has weight, you can use a sensitive balance or scale. Weigh an airtight container or balloon, and then fill it with air. The weight of the container or balloon with the added air will be greater than its initial weight, demonstrating that air has weight.

6. Air is useful to us in various ways. Three points highlighting the importance of air are:

7. Three properties of air include:

Air exerts force in various ways. For example, air pressure allows objects like airplanes to fly by providing lift. Air resistance or drag opposes the motion of objects moving through the air, creating a force that can affect their speed and trajectory.

8. Four effects of air pollution include:

9. Causes of pollution:

10. Two control measures for air pollution include:

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Answer:

Also if you where to get there gravity from the other side would send you back up

Explanation:

The Earth's gravity is all around and the closer to the core the stronger the gravity