Balancing chemical reactions, what is it and two examples!!

PLEASE HELP I NEED THE ANSWER!!!


Giving lots of POINTS

Heat transfer is the movement of thermal energy from a temperature that is higher to one that is lower.

The energy that exists in a system and controls its temperature is known as thermal energy. Heat is thermal energy in motion. Thermodynamics is a comprehensive field of physics that examines how heat and work are transferred between diverse systems.

The energy that results from atoms and molecules moving around within a substance is known as thermal energy, often known as heat. When these particles move more quickly, heat is produced. Geothermal energy is the earth's heat energy. Energy held within motion is referred to as motion energy.

To know more about thermal energy visit:

https://brainly.com/question/18989562

#SPJ1

Periodic trends are particular patterns that appear in the periodic table and highlight various characteristics of a certain element, such as its size and electrical capabilities. Electronegativity, ionization energy, electron affinity, atomic radius, melting temperature, and metallic nature are important periodic trends.

Within a period, the elements' ionization energies tend to rise from left to right. Valence shell stability is to blame for this.

In general, an element's ionization energy falls from top to bottom within a group. The reason for this is electron shielding.

The graph shows that the entire valence shells of the noble gases give them extremely high ionization energy. Keep in mind that among all the elements, helium has the highest ionization energy.

Within a time frame, electron affinities shift from left to right. The shrinkage of atomic radius is to blame for this.

Within a group, electron affinity diminishes from top to bottom. The rise in atomic radius is to blame for this.

This results from an overall rise in the amount of protons and electrons throughout time. Since each proton exerts more force than each electron, electrons are drawn inward and reduce the radius of the atom.

Within a group, atomic radius grows from top to bottom. The reason for this is electron shielding.

Learn more about Melting Point Trends: https://brainly.com/question/29339639

#SPJ1

The half-life of gold-198 is 2.77 days

To learn more about half-life of gold-198 refers to:

brainly.com/question/28174852

#SPJ1

Answer:

They are 4 short column on the periodic table

molecule of the variables shift in the opposite directions when there is a inverse or negative relationship. In other words, the dependent variable grows if the value of the independent variable falls.

The dependent variable in this study are often the effect and the variable are the cause in a research investigation. Additionally, one could say that there is a cause-and- effect link between the independent and the dependent variables.

A statistical method known as correlation is used to quantify and explain a link between two variables. The two factors are often just observed, not changed. Two scores from identical people must be used for the correlation

To know more about molecule  visit :

https://brainly.com/question/19556990

#SPJ1

The buffer can be made using an acid or a base.

We have to know that the term buffer is the generic term that can be generally used to describe any solution that is resistant to changes in acidity and the alkalinity of the solution.

We know that we can be able to make a buffer in two ways;

1) By the use of a weak acid and its salt

2) By the use of weak base and its salt.

In each case, the pH of the solution that has been formed would not be easily changed and this is the job of the buffer.

Learn more about buffer:https://brainly.com/question/22821585?

#SPJ1

To solve this we must be knowing each and every concept related to hybridisation. Therefore, the hybridisation of the given molecule can be given as below.

Only during bond formation does hybridization occur, not in an individual gaseous atom. If the bonding of a molecule is known, the geometry of the molecule may be predicted.

compound                                                              hybridisation

Carbon dioxide (0 = C = O)                                       sp

Propene (CH[tex]_3[/tex]CH = CH[tex]_2[/tex])                                            sp³, sp²,sp²

Formaldehyde (H[tex]_2[/tex]C = O)                                             sp²

Acetone [(CH[tex]_3[/tex] )[tex]_2[/tex] C = O                                                 sp³, sp²,      sp³

Ketene (H[tex]_2[/tex]C = C = O)                                                  sp²,    sp

Therefore, the hybridisation of the given molecule can be given as above.

To learn more about hybridisation, here:

https://brainly.com/question/29290058

#SPJ1

Answer:

C) W is the amplitude, and an increase in W is associated with an increase in energy.

E) X is wavelength, and a decrease in X is associated with an increase in energy.

Explanation:

A transverse wave consists of an oscillating electric field that is perpendicular to the direction of the wave. Increasing either the amplitude or the wavelength of the wave increases its energy. For a transverse wave, the amplitude corresponds to W, while the wavelength is labeled X. So increasing W or decreasing X will create increase the energy of the wave.

a) 1 - Trigonal planar 2 - Trigonal planar

b) 1- Linear  2 - Tetrahedral  3 - Tetrahedral

c) 1 - Trigonal planar 2 - Tetrahedral

We have to know that the shapes at the various carbon atoms and other atoms would depend on the number of the electron pairs and the hybridization of the atom.

We must have to note that the shape of the atom can be found on the basis of the valence shell electron pair repulsion theory which deals with the arrangement of that electrons around the outermost shell of the central atom.

Learn more about shapes of molecules:https://brainly.com/question/20366815

#SPJ1

Answer:

So 0.39 moles of oxygen are produced in 14 g of water. So that's it.

Explanation:

Answer: 1s2 2s2 2p4

Explanation:

Recall the number of electrons an orbital can have:

s orbitals have 2, p orbitals have 6, d orbitals have 10, f orbitals have 14, and so on.

Oxygen in its neutral state would have 8 electrons.

To summarize the diagonal filling order, it goes from the least energy level to the most, and the orbital with the least amount of orbitals to the most.

So, the order for this will go from 1 and end at 2 (for energy level,) then s, s again (as energy level 1 has 1s orbital only,) and p.

So, the first energy level, 1s2 (2 electrons), leaves the remaining six electrons.

Completely fill the s orbital (another 2 electrons), and the remaining 4 electrons will be in the respective p orbital.

Thus, it is 1s2 2s2 2p4.

Answer:

Step 1: Use the kn*fe to cut the rubber tubing into two pieces.

Step 2: Use one plastic bag to filter the pond's murky water. Place the bag over the plastic cup and pour the water into it.

Step 3: Place the filtered water from the plastic bag into the 5-L glass bottle.

Step 4: Add a few drops of the liquid bleach to the water in the glass bottle.

Step 5: Place the nylon jacket over the top of the glass bottle and secure it with the rubber tubing.

Step 6: Place the glass bottle in direct sunlight and let it sit for at least an hour.

Step 7: Remove the nylon jacket and rubber tubing from the glass bottle.

Step 8: Use the second plastic bag to filter the water from the glass bottle.

Step 9: Enjoy the drinkable water!

Explanation:

Answer:

Explanation:

In water, silver nitrate (AgNO3) dissolves to generate the ions Ag+ (silver) and NO3- (nitrate). When the substance is dissolved in water, the ions are separated and become solvated, or surrounded by water molecules. Water molecules' oxygen atoms join the metal ion in a coordinate covalent bond that gives the metal ion a pair of electrons. By preventing it from interacting with other ions or molecules in the solution, this aids in stabilising the metal ion. As a result of their hydrogen bonds with the water molecules around them, the nitrate ions are likewise stabilised in solution.

The compound is going to have the molecular formula; [tex]C_{4} H_{8}O_{2}[/tex]

We know that the molecular formula is the formula of the compound that shows the number of the atoms of each of the elements that we can be able to find in the compound.

Now for the compound that we have, we divide through by the relative atomic mass of each;

C - 54.53/12    H -  9.15/1   O - 36.32/16

C - 4.5        H - 9.15    O - 2.27

Dividing through by the lowest ratio;

C - 4.5/2.27   H - 9.15/2.27     O - 2.27/2.27

C - 2   H - 4    O -1

The empirical formula is [tex]C_{2} H_{4} O[/tex]

We now have;

[2(12) + 4(1) + 16] n= 88.1

n = 88.1/44

n = 2

The molecular formula is;

[tex]C_{4} H_{8}O_{2}[/tex]

Learn more about molecular formula;https://brainly.com/question/28647690

#SPJ1

Answer:

The formula for kinetic energy is KE= 1/2mv²

Explanation:

Hope it helps you

PLS RATE AS BRAINLIEST ANSWER

Answer:

The answer is lithium bromide because it is the combination of a metal (lithium) and a nonmetal (bromine). The indicator that this is the correct name, rather than lithium bromate, is that the compound is composed of only two elements and does not contain oxygen. Yes, this is why NaNO3 is Sodium Nitrate; it is composed of three different elements (sodium, nitrogen, and oxygen).

Explanation:

Some examples of molecules that are antigenic may be proteins and or polysaccharides in the cell wall of pathogenic bacteria which may be targeted by the immune system during the production of antibodies.

The relationship between antigens in pathogenic bacteria and antibodies of the immune system is based on the fact that antigens are biomolecules in the pathogens that can be targeted to bond antibodies that are produced by the organism in immune responses against bacteria, viruses, and allergens in the air and foods, etc.

Therefore, with this data, we can see that antigen molecules be any type of biomolecule present in the pathogen and the relationship between antigens in pathogenic bacteria and antibodies of the immune system is based on the binding between them (antigens and antibodies) which is fundamental during certain specific immune responses.

Learn more about antigens here:

https://brainly.com/question/7597406

#SPJ1

Answer:   It takes 285.8 kJ of energy to form one mole of water

Explanation:

The enthalpy of formation of a substance is the change in enthalpy that occurs when a substance is formed from its elements in their standard states. The enthalpy of the formation of water is -285.8 kJ/mol, which means that it takes 285.8 kJ of energy to form one mole of water from its elements (hydrogen and oxygen) under standard conditions. This value is negative, which means that the formation of water releases energy. This is why water is often referred to as an "exothermic" substance because it releases energy when it is formed. The negative value of the enthalpy of formation for water can be explained by the fact that the bonds formed between hydrogen and oxygen atoms in water are stronger than the bonds between hydrogen and oxygen atoms in the individual elements. This means that it takes less energy to break the bonds in the elements than it releases when the bonds in water are formed, resulting in a net release of energy.

For more information about Enthalpy;

https://brainly.com/question/11317028

Answer:

This means that 285.8 kJ/mol is evolved when one mole of water is formed.

What is the enthalpy of formation?

The term enthalpy of formation has to do with the energy that is released or absorbed when a molecule of water if formed from its constituents.

The fact that the enthalpy of formation of water is -285.8 kJ/mol implies that 285.8 kJ/mol is evolved when one mole of water is formed.

Explanation:

Answer:

The Law of Conservation of Matter states that in a chemical reaction, matter is not created or destroyed. However, it is possible for the mass of a substance to change during a chemical reaction, as you observed.

When a substance burns, it reacts with oxygen in the air to form new compounds. For example, when wood burns, it reacts with oxygen to form water and carbon dioxide. The mass of the wood plus the mass of the oxygen is equal to the mass of the water and carbon dioxide produced.

In this case, the extra mass that you observed came from the oxygen that reacted with the wood. Oxygen has mass, and when it reacts with the wood, the mass of the resulting compounds is greater than the mass of the starting materials.

It's important to note that energy is not a form of matter, and therefore has no mass. However, energy can be converted into matter and vice versa, according to the famous equation E=mc^2, where E is energy, m is mass, and c is the speed of light. This equation demonstrates that mass and energy are fundamentally connected and can be converted into each other under certain conditions.

Explanation:

pressure=585...

this is your answer

Salts are heated to extremely high temperatures during a display of fireworks. The salts' ions pick up energy and get excited. Exciting hues are created as energy in the form of light is emitted from the ions. Each salt's metal ion can be identified by the hue of the light that is emitted.

Subatomic particles refer to the three fundamental particles that make up the atom.

The subatomic particles include:

Electrons occupy several energy states. When electrons gain energy, they move to a higher energy state. The electrons on returning to a lower energy state emit radiation that is seen as several light color displays in fireworks.

Lear more about subatomic particles at: https://brainly.com/question/16847839

#SPJ1

Answer: chemical change

The mass of a 8.45 m3 piece of copper is 7537.4 grams.

Mass is described as a dimensionless quantity representing the amount of matter in a particle or object.

density of copper =8.92g/cm^3

volume = 8.45 x 100 cm^3

mass =  (8.45 x 100) x 8.92

mass = 7537.4 grams.

The relationship between mass, density and volume is that density offers a convenient means of obtaining the mass of a body from its volume or vice versa.

This means that the mass is equal to the volume multiplied by the density (M = Vd), while the volume is equal to the mass divided by the density (V = M/d).

Learn more about mass at: https://brainly.com/question/19385703

#SPJ1

Answer:

it is the British imperial and united states customary systems

Answer:

From the information provided, it seems likely that substance A is an acid, and substance B is a carbonate. The fact that mixing the two substances results in bubbles or effervescence, and that a clear solution is formed, suggests that a chemical reaction is taking place.

Acids and carbonates react together to form a salt, water, and carbon dioxide gas. The reaction is as follow:

Acid + Carbonate → Salt + Water + Carbon Dioxide

The carbon dioxide gas forms bubbles in the solution and causes effervescence, and the clear solution formed is due to the fact that both the acid and the carbonate have reacted together to form the salt and water. This reaction is acid-base neutralization reaction as the acid and base will neutralize each other.

As for the acid, since it is said that B gives pH 3 solution after dissolved, it can be inferred that it is not an acid, otherwise it would be acidic. Therefore A which is insoluble is the acid.

As for the gas given off, it's Carbon dioxide.

Explanation:

The allowed concentration of Cl in water is 250 ppm. Then the equivalent concentration in molarity is 0.007 molar.

Molarity is a common term used to express the concentration of a solution. It is the ratio of the number of moles of solute to the volume of solution in liters. Molarity is a temperature dependent measurement.

Parts per million is another term of concentration have the formula as written below:

ppm = ws/W × 10⁶

Where, ws is the weight of solute and W be the weight of solution in grams.

1 molar = 35500 ppm

therefore, 250 ppm = 250 ppm × 1M /35500 ppm  = 0.007 M.

Hence, the molarity of the salt solution will with the maximum  allowed concentration will be 0.007 M.

Find more on molarity:

https://brainly.com/question/8732513

#SPJ1

The new volume of the system can be found to be 4.9 L.

We have to know that we do use the Boyle's law when we are trying to get the association that we know that does exist when we are looking at the volume and the pressure of the gas and the both can be shown to be inversely proportional.

We then have that;

Initial pressure(P1) =  765 mmHg

Initial volume (V1) = 5 L

Final pressure (P2)= 780 mmHg

Final volume (V2) = ?

Then;

P1V1 = P2V2

V2 = 765 * 5/780

V2 = 4.9 L

As such, we can see from the calculation that the new volume that we would obtain is 4.9 L

Learn more about Boyle's law:https://brainly.com/question/1437490

#SPJ1

From the balanced equation of the reaction, the mole ratio of the reactants is 1:3.

Mole of 50.0 g [tex]Fe_2O_3[/tex] = 50/160 = 0.3125 mol

Mole of 10.0 g CO = 10/28 = 0.3571 mol

Stoichiometric equivalent of  [tex]Fe_2O_3[/tex] = 0.3571/3 = 0.1190 mol

In other words,  [tex]Fe_2O_3[/tex] is in excess.

Excess mole = 0.3125 - 0.1190 = 0.1935 mol

Mass of 0.1935 mol [tex]Fe_2O_3[/tex] = 0.1935 x 160 = 30.96 grams

Mole ratio of CO to Fe = 3:2

Equivalent mole of Fe that would be formed = 0.3571 x 2/3

                                                                          = 0.2381 mol

Mass of 0.238 mol Fe = 0.238 x 56 = 13.328 grams

Percent yield of Fe = 11.5/13.328 x 100 = 86.28%

Mole of 75 gk CO2 = 75000/44 = 1704.55 mol

Mole ratio of CO2 and Co = 1:1

Equivalent mole of CO = 1704.55 mol

Mass of 1704.55 mol CO = 1704.55 x 28 = 47.73 kg

80.7% = 47.73 kg

100% = 100 x 47.73/80.7

        = 59.14 kg

In other words, 59.14 kg of CO would be needed.

More on stoichiometric problems can be found here: https://brainly.com/question/29856106

#SPJ1

"Certainly no muscular fatigue to sustain, while it procures for him good, unfailing wages, besides a healthy workshop gratis."

To know more about healthy workshop conditions quote, check out :

brainly.com/question/10588742

#SPJ1