Inspect the compound lithium hydroxide, LiOH. Is the bond/attraction between

the Li - O the same as 0-H? Describe both the Li-O and O-H bonds/attractions

using the correct terms.

Magnesium and oxygen interact to create light that is so intense that it temporarily renders you blind.

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Answer:

Element - Co. This is because an element is an atom that is made up of purely its own element. In this case, we have Co, also known as Cobalt on the periodic table of elements

Compound - CO. A compound is a substance that can be broken down into simple stable substances. Each compound is made from the atoms of two or more elements that are chemically bonded. As you can see, C (carbon) and O (oxygen) are chemically bonded together

Homogeneous mixture - C+O2

Heterogeneous mixture - CO2

Answer:

33 m/s.

Explanation:

Since in 1 second, you walk 3 meters so in 11 seconds, you will walk 33 m/s.

1 second = 3 meters.

11 seconds = 11 x 3 m/s = 33 m/s

If you walk at a speed of 3 meters per second (m/s),  33 m/s you walk in 11 seconds. Speed may be described as the distance an item goes with relation to the time something takes to complete the task.

The distance that an item travels in relation to the period of time it takes to complete this task may be used to define speed. In other terms, it refers to a measurement of an object's motion's speed without direction Velocities are what we get when speed and direction are combined.

Speed may be described as the distance an item goes with relation to the time something takes to complete the task. To put it differently, it refers to a measurement as to how swiftly something travels. Speed is measured in metres per second, or m/s, since the distance is measured in meters and the time is measured in seconds.

1 second = 3 meters.

11 seconds = 11 x 3 m/s = 33 m/s

Therefore, if you walk at a speed of 3 meters per second (m/s),  33m/s you walk in 11 seconds.

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The sandstone is younger if the granite contains sandstone inclusions. The sandstone is younger if it shows evidence of contact metamorphism.

Geologists are scientists that research the Earth's processes, materials, history, and natural features. There are other subcategories of geologists, including economic geologists who search for and exploit the planet's resources and environmental geologists who research how humans interact with the natural world.

Geologists examine the Earth's components, operations, byproducts, physical characteristics, and past. In connection to the geologic, climatic, and human processes that shape them, geomorphologists study the landforms and landscapes of the planet.

Those who study the Earth's surface and the materials that make it up are known as geologists. Geology, or the study of rocks, is the name of this field of study.

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In a physical change, the substance's shape or appearance changes, but the type of matter it contains stays the same. But when matter undergoes a chemical change, at least one new substance with novel properties is created.

Chemical synthesis, or, alternatively, chemical decomposition into two or more different substances, occurs when one substance reacts with another to create a new substance.

Physical modifications are those that affect a chemical substance's form but not its chemical composition. Physical changes are usually unable to separate compounds into chemical elements or simpler compounds, but they can be used to separate mixtures into their component compounds.

An overview was given as your information is incomplete.

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Christopher can change the force applied to item 3 to cause it to move the same distance that object 1 did. Mass times acceleration equals force (F = ma). As a result, the acceleration will decrease.

if the force is maintained while the object's mass increases. Christopher may thus exert additional force on item 3 to make up for the object's increased mass. In order for object 3 to move the same distance with the same force as object 1, he can also reduce its mass to match object 1's. As an alternative, Christopher can change the amount of friction that object 3 encounters. The force that opposes an object's motion is known as the friction force. If item 3 encounters less resistance to motion,With the same effort, it will travel further. To minimize friction and have item 3 go the same distance as object 1, Christopher might apply a lubricant to it. Christopher may make item 3 travel the same distance as object 1 by changing the force, mass, or friction force of that object.

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The density of iron that  crystallizes in a body-centered cubic cell having an edge length of 287.0 pm is 7.87g/cm³

In this case, iron is the given object, and we utilize the atomic number of iron to determine density, which is the ratio of the given object's mass to its volume.

Length = 287pm = 287x10⁻¹⁰cm, as we are aware.

Fe's atomic mass is 56.0u with a Z=2 configuration (for body centered cubic unit cell)

Na is Avogadro number = 6.022 x 10²³

Density = ZM / a³N

Z=body-centered cubic unit cell,

a=Length Density

Substituting the above values in the density formula we get:

Density = ZM / a³N

ρ= (2 x 56)/(287x10⁻¹⁰cm)³ (6.022 x 10²³).

ρ=7.87g/cm³

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A spoonfull of sodium chloride is dissolved in a liter of water.Solute is sodium chloride in this solution.

Salt, often known as sodium chloride (NaCl), is a substance that human body needs in order to:transporting and absorbing nutrition,keep blood pressure steady,maintain the proper fluid equilibrium.send nerve impulses,Muscles are tense and relaxed.Since salt is an inorganic substance, it does not originate from biological things. It is created when sodium chloride and chloride combine to produce white, crystalline cubes.Although salt is essential for your body to operate, too little or too much salt can be bad for your health.While salt is widely used in cooking, it is also a component of several meals and cleaning products. Your doctor or nurse will often administer sodium chloride as an injection in medical situations. Continue reading to learn why and how salt affects your body.

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Carbohydrates like sugars and starches are made of only these three elements (C,H,O) form long chains that keep growing, so the identity of each compound is always changing.

Carbon, hydrogen, and oxygen make up the biological molecules known as carbohydrates, with the ratio of one carbon atom (C) to one water molecule (H 2O) being about right. Because they are composed of carbon (carbo-) and water, carbohydrates have the term "carbohydrates" (-hydrate). The length of carbohydrate chains varies, and the three types of physiologically significant carbohydrates are monosaccharides, disaccharides, and polysaccharides. We will learn more about each type of carbohydrate in this article, as well as the vital energy and structural functions they provide in humans and other living things.

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Answer:

Explanation:

The molecular weights of the two components, which together have a molecular weight of 120 g/mol, would be the predicted m/z of the molecular ion peak for compound 2, which is a combination of acetic

Chemical compounds made up of two or more atoms and bound together by chemical bonds are called molecules. These bonds can be ionic or covalent, in which case the atoms transfer electrons rather than sharing them. Either H2 or DNA are examples of simple molecules. The different atom kinds and their arrangements inside a molecule affect the characteristics of that molecule. Molecules including proteins, lipids, and nucleic acids are necessary for the operation of living things, according to biochemistry. The kinds and configurations of molecules inside a material can have an impact on its characteristics, according to materials science. Pharmaceuticals create compounds that interact with certain

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ion-ion forces N/A, dipole-dipole forces-CH3OH-HF, ion-dipole forces MgI2,CuCl2, London dispersion forces N/A, hydrogen bonding -C2H5OH and NH3

London dispersion forces are a particular kind of intermolecular force that affects atoms and molecules that are typically electrically symmetric, meaning that the distribution of the electrons with respect to the nucleus is symmetric. The forces of van der Waals include them. After the German physicist Fritz London, the LDF was created. An atom's unequal distribution of electrons results in London dispersion forces. As a result, the atom acquires a slight negative () and slight positive () charge on either side. There is now a transient dipole in place. This transient dipole may cause a transient dipole on an adjacent atom or molecule.

the following substances dissolve when added to water. classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and water during dissolution.

1. CH3OH

2.MgCl2

3. CUCl2

4. NH3

5.C2H5OH

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Sugar is solute while water is solvent.

Solution can be defined as a homogeneous mixture of two or more components in which one component is uniformly distributed in another component. The solvent is known to be a substance that dissolves the other substance and is present in a greater amount.

Solubility is the ability of a substance solute to dissolve in another substance solvent. When you add sugar to water the sugar dissolves and the mixture becomes a solution. In this  method sugar is the solvent and water is the solution

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The conjugate base of a Bronsted-Lowry acid is the species formed after an acid donates a proton.

what is  conjugate acid and base?

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a. Gases have particles that move rapidly in all directions, frequently colliding with each other and the side of the container  resulting in no definite shape or volume.

b. Liquids  have particles can move around one another resulting in the particles being strong enough to hold a specific volume.

c. Solids have particles vibrate around fixed positions resulting in the particles vibrate faster and faster until they have enough energy to break away from their fixed positions.

A particle is described as a small localized object which can be described by several physical or chemical properties, such as volume, density, or mass.

In conclusion, the particles in solids are very close together, therefore they cannot usually be compressed or squashed.

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Taking into account the reaction stoichiometry, given 0.842 g of NH₃ and 0.728 g of O₂, NH₃ is the excess reactant.

The balanced reaction is:

4 NH₃ + 5 O₂ → 4 NO + 6 H₂O

By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

By reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The limiting reactant is the one that is found in the least amount and, therefore, will be finished first at the time of the chemical reaction, resulting in the end of the reaction. In other words, when this reagent is finished, it will no longer be possible to continue generating a certain product.

The reactant in excess is one of which there is more than what is necessary for the chemical reaction to take place.

To determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 68 grams of NH₃ reacts with 160 grams of O₂, 0.842 grams of NH₃ reacts with how much mass of O₂?

mass of O₂= (0.842 grams of NH₃× 160 grams of O₂)÷68 grams of NH₃

mass of O₂= 1.98 grams

But 1.98 grams of O₂ are not available, 0.728 grams are available. Since you have less mass than you need to react with 0.842 grams of NH₃, O₂ will be the limiting reagent.

Then, NH₃ will be the excess reactant.

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The pressure of the gas produced is approximately 587.17 kPa.

To solve this problem, we first need to find the amount of gas produced by the reaction of aluminum hydroxide with ammonium persulfate, then use the Ideal Gas Law (PV = nRT) to calculate the pressure.

First, let's find the number of moles of ammonium persulfate by using the molar mass:

10.35 g ÷ (2 * (1 + 32 + 64 + 16)) g/mol = 0.108 mol

Next, let's find the number of moles of aluminum hydroxide:

613.28 mL * 2.744 M = 1692.04 mol

Now, let's assume that the reaction goes to completion and that all the aluminum hydroxide reacts with ammonium persulfate, so the number of moles of gas produced will be equal to the number of moles of ammonium persulfate:

0.108 mol

Finally, we can use the Ideal Gas Law to calculate the pressure:

P = (n * R * T) / V

where n = 0.108 mol, R = 8.31 J/mol K, T = (42.455 + 273.15) K, and V = 1536.70 mL * 10^-3 L

P = (0.108 * 8.31 * (42.455 + 273.15)) / (1536.70 * 10^-3)

P = (0.108 * 8.31 * 315.605) / (1.5367)

P = 905.752 / 1.5367

P = 587.17 kPa

So, the pressure of the gas produced is approximately 587.17 kPa.

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Uf6 is created using a bromine and fluorine combination. BrF3 is standard empirical formula for both the specified chemical.

Typically, the stoichiometry is used to only display the components of a molecule. When one wishes to quickly identify the elements they are working with, this is helpful. When you want to know how several atoms of each element are represented in the molecule, the chemical weight is the most helpful.

In statistics, the experimental rule is frequently applied to forecast outcomes. These rule can be employed as a rough approximation of the outcomes of the upcoming data after computing the error margin and before gathering precise data.

Percentage of Br = 58.37 %

Percentage of F = 41.63 %

Mass of Br = 58.37 g

Mass of F = 41.63 g

Bromine = 0.73 /0.73

= 1

Fluorine = 2.19 / 0.73

= 3

ratio = Br : F

= 1 : 3

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When we are looking at an element on the periodic table, its mass number helps us determine that the element has multiple naturally-occurring isotopes as the isotopes differ in mass.

Isotopes are those atoms which have the same no. of protons but have different no. of neutrons. Isotopes of a particular element have the same atomic no. but they have different mass numbers. The isotopes of an element are given the same position in the modern periodic table.

The mass number of an element is determined by the total no. or protons and neutrons that are present in its nucleus. For example, there are three isotopes of atom namely protium (¹H), deuterium (²H) and tritium (³H) which differ in the number of neutrons present in the nucleus.

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When 66.4 g of the hydrochloric acid reacts with the excess manganese (iv) oxide, The grams of chlorine gas are formed is 129.2 g.

The reaction is given as :

4HCl(aq)  +  MnO₂(s)  --->  MnCl₂(aq)  +  2H₂O(g) + Cl₂(g)

Given that :

The mass of the hydrochloric acid = 66.4 g

The number of moles = mass / molar mass

The number of moles = 66.4 / 36.45

                                     =  1.82 mol

1 mole of HCl produces 1 mole of  Cl₂

Moles of  Cl₂ = 1.82 mol

The mass of  Cl₂ = moles × molar mass

                            = 1.82 × 71

                            = 129.2 g

Thus, the mass of the chlorine gas is 129.2g.

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the complete statement in liquid spill cleanup is 1- Surround the area with barriers, then cover the spill. 2- Scoop up the material and place it in a container.

steps for liquid spill cleanup are:

Identify and assess the type of liquid spilled.

Put on appropriate personal protective equipment (PPE)

Alert others in the area and evacuate if necessary.

Surround the area with barriers, such as caution tape or cones, to prevent anyone from entering the area.

Use absorbent materials, such as sand, clay, or kitty litter, to cover the spill and contain it.

Scoop up the material and place it in a container for proper disposal.

Clean the area with a neutralizing agent if necessary.

Dispose of the waste in accordance with local and federal regulations.

Check for any remaining traces of the spill and clean if necessary.

Document the incident and make sure it is properly reported if required by regulations.

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(a) 25.00 mL of a 2.430 M HCI solution:

Moles of HCI = (2.430 M)(0.0250 L) = 0.06075 mol

Moles of NaOH = Moles of HCI = 0.06075 mol

Volume of NaOH = (0.06075 mol NaOH)/(1.420 M NaOH) = 0.0429 L = 42.9 mL

(b) 25.00 mL of a 4.500 M H2SO4 solution:

Moles of H2SO4 = (4.500 M)(0.0250 L) = 0.1125 mol

Moles of NaOH = Moles of H2SO4 = 0.1125 mol

Volume of NaOH = (0.1125 mol NaOH)/(1.420 M NaOH) = 0.0791 L = 79.1 mL

(c) 25.00 mL of a 1.500 M H3PO4 solution:

Moles of H3PO4 = (1.500 M)(0.0250 L) = 0.0375 mol

Moles of NaOH = Moles of H3PO4 = 0.0375 mol

Volume of NaOH = (0.0375 mol NaOH)/(1.420 M NaOH) = 0.0264 L = 26.4 mL

What is moles?

Moles in chemistry is a unit of measurement used to quantify the amount of a substance. It is based on the number of atoms, molecules, or other particles present in a given sample.

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The reactants combine to create the final product in both processes. A chemical reaction involves an electron rearrangement rather than the nucleus of an element changing as in a nuclear reaction.

An atom's nucleus changes during nuclear reactions, typically creating a new element. On the other hand, nuclear modifications do not occur during chemical reactions; rather, only the arrangement of electrons does. The behavior of various isotopes of an element in chemical reactions is typically similar.

In both processes, the reactants unite to produce the end result. While an element's nucleus changes in a nuclear reaction, an electron rearrangement occurs in a chemical reaction.

Outside of the nucleus, chemical reactions typically take place. Only within the nucleus do nuclear reactions occur. When chemical processes take place, elements retain their identity, and atom nuclei likewise do not change. Atomic nuclei totally transform and new elements are created during nuclear processes.

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Answer:

The soil nutrients will be depleted

Explanation:

Rotating crops provides productivity benefits by improving soil nutrient levels and breaking crop pest cycles.

Solids, liquids, and gases differ in terms of packaging of the atoms in its constituent atomic level.

Solids, liquids, and gases are the three main states of matter. They differ in the way their atoms or molecules are arranged and how they interact with one another. Solids have a definite shape and a definite volume. The atoms or molecules in a solid are tightly packed together and are not free to move around. Solids also have a low compressibility and a high density. Liquids have a definite volume but no definite shape. They take the shape of their container. The atoms or molecules in a liquid are close together but are free to move around. Liquids have a low compressibility and a lower density than solids. Gases have no definite shape or volume. They expand to fill their container. The atoms or molecules in a gas are widely spaced and are free to move around. Gases have a high compressibility and a low density. Examples of gases include air, oxygen, and natural gas. In summary, Solids have a fixed shape and volume, liquids take the shape of their container, have a definite volume and gases have no fixed shape or volume and expand to fill their container.

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The response variable in this experiment is the quiz score of each volunteer.

This is the variable that the scientists are measuring in order to determine the effects of caffeine on short term memory. The quiz score will be used to compare the performance of the group that consumed caffeine to the group that consumed the placebo, in order to determine whether caffeine has a positive or negative impact on short-term memory. The quiz score is the outcome that is being measured and is the variable that will be used to draw conclusions about the effect of caffeine on memory.

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The density of this metal sample is 2.32 g/mL.

To calculate the density of a sample of metal, we divide the mass of the sample by its volume. The density of an object is usually measured in g/cm³ (grams per cubic centimeter) or g/mL (grams per milliliter).

The formula for density is:

density = mass / volume

In this case, the mass of the metal is 17.08 g and its volume is 7.34 ml.

So we can calculate density by substituting these values into the formula:

density = 17.08 g / 7.34 ml = 2.32 g/mL

So, the density of this metal sample is 2.32 g/mL.

It's important to note that density of a metal is a characteristic property, so it can be used to identify a metal.

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Answer:

To calculate the number of molecules in 12.3 moles of SO3, we can use the Avogadro's number, which is the number of atoms or molecules in one mole of a substance. Avogadro's number is approximately 6.022 x 10^23 atoms or molecules per mole.

To calculate the number of molecules in 12.3 moles of SO3, we can multiply Avogadro's number by the number of moles of SO3:

Number of molecules = Avogadro's number x moles of SO3

Number of molecules = 6.022 x 10^23 x 12.3

Number of molecules = 7.34 x 10^24

So there are approximately 7.34 x 10^24 molecules in 12.3 moles of SO3.

The equation for the standard Enthalpy of Formation of potassium bromate, KBrO3, corresponds to the reaction in which potassium bromate is formed from its individual elements at standard conditions (25°C and 1 atm pressure). The reaction can be represented as:

K(s) + Br2(l) + 1/2O2(g) → KBrO3(s)

The standard enthalpy of formation for a substance is the change in enthalpy that occurs when one mole of the substance is formed from its individual elements at standard conditions.

In this case, the standard enthalpy of formation for potassium bromate is the amount of heat released or absorbed when one mole of potassium bromate is formed from its individual elements (potassium, bromine, and oxygen) at standard conditions.

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The temperature of the gas is 2.18 K, or -270.97°C, if I have 5 moles of the gas at a pressure of 6. 5 atm and a volume of 14 litres. The physical concept of temperature indicates in numerical form how hot or cold something is.

We may apply the Ideal Gas Law, which stipulates that PV = nRT, to determine the temperature of a gas.

P, V, and n all have known values of 6.5 atm, 14 L, and 5 moles, respectively. We also know that R, or 8.314 J/mol K, is the ideal gas constant.

So, to get the temperature, we may apply the equation shown below:

PV = nRT

T = (PV) / (nR) (nR)

T is calculated as (6.5 atm x 14 L) / (5 mol x 8.314 J/mol K).

T = (91 J) / (41.57 J/K)

T = 2.18 K

A thermometer is used to determine temperature. Thermometers are calibrated using a variety of temperature scales, which historically defined distinct reference points and thermometric substances.

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Answer:

The energy is released/harnessed in the form of an electrical current.  

Explanation:

The concept of a fuel cell is to harvest the energy of the H2 + O2 reaction in the form of electrical current, not as light, heat, and sound.  Although energy in the light, heat, and sound provide a higher entertainment value, the electricity produced in a fuel cell proves useful in powering computers, electric cars, phones, televisions, toasters, and other electrical and electronic devices.  The TV, phone, and computer provide substitute entertainment.

The amount of energy released is the same.  It is simply in a different form.