Hydrogen (H2) gas and oxygen (02) gas react to form water (H20) vapor. Suppose you have 1.0 mol of H, and 13.0 mol of O, in a reactor. What would be the limiting reactant? Enter its chemical formula below

The reaction between Mg (Magnesium) and HCL (Hydrochloric acid) is shown below;Mg + 2HCl → MgCl2 + H2Molar mass of Mg = 24 g/mole.

Number of moles of H2 = 0.00300 moles (Given)The balanced equation for the reaction shows that for every 1 mole of Mg, 1 mole of H2 is produced.Therefore;Number of moles of Mg = Number of moles of H2 = 0.00300 moles Mass of Mg needed = Number of moles of Mg × Molar mass of Mg= 0.00300 moles × 24 g/mole= 0.072 g Therefore, 0.072 g of magnesium is necessary to produce 0.00300 moles of hydrogen gas.

The formula for calculating the number of grams of magnesium necessary to produce .00300 moles of hydrogen gas can be found by the following steps:Write the balanced equation for the reaction between Mg and HCL.Find the molar mass of Mg.Calculate the number of moles of H2 from the given data (0.00300 moles).Use the balanced equation to equate the number of moles of Mg to the number of moles of H2.Calculate the mass of Mg from the number of moles of Mg and the molar mass of Mg.

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Answer: .5m

Explanation:

The molar mass of NH₄ is 18 g/mole while that of compound of lithium bromide is 86.84 g/mole.

Molar mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molar mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.

The molecular mass and formula mass are used as synonym for the molar mass.It does not depend on the amount of substance which is present in the sample.It has units of gram/mole.

Molar mass of  NH₄= 14+ 4= 18 g/mole while that of lithium bromide =6.941+ 79.904=86.84 g/mole.

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Chemicals like bacterial toxins that poison cells are commonly described as being toxic or poisonous. These substances have the ability to disrupt normal cellular functions and processes, leading to harmful effects on the cells and organisms they come into contact with.

Toxins can have various mechanisms of action. Some toxins interfere with essential biochemical pathways, disrupt cellular membranes, or inhibit vital enzymes, while others may directly damage DNA or disrupt cellular signaling. Regardless of their specific mode of action, toxins are designed to have a detrimental impact on cellular function and can cause a wide range of adverse effects, from mild symptoms to severe illness or even death.

The toxicity of a substance is often determined by its concentration, exposure duration, and the specific vulnerability of the target cells or organisms. Toxins produced by bacteria can be classified into exotoxins, which are secreted by bacteria and released into the surrounding environment, or endotoxins, which are part of the bacterial cell wall and are released upon cell death or lysis.

Chemicals like bacterial toxins are referred to as toxic or poisonous due to their ability to disrupt cellular function and cause harm to cells and organisms.

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Answer:

The chromium found in foods will not hurt you. But taking excessive chromium supplements can lead to stomach problems and low blood sugar (hypoglycemia). Too much chromium from supplements can also damage the liver, kidneys, and nerves, and it may cause irregular heart rhythm.

The balanced equation will be:

Cu + 2 AgNO3 ----> 2Ag + Cu(NO3)2

The balancing of equation is done to satisfy the law of conservation of mass. This law states - "mass can neither be created, nor be destroyed". Thus, the mass of the element in the equation cannot be created or destroyed, it is just shifted.

The answer is 1,2,2,1; the first option.

Answer:

=71.439911 u

Explanation:

We know that 1 mass of hydrogen atom = 1.00784 u

If it's measured at 72u: 72/1.00784=71.439911 u

Mass of 1 mol hydrogen atoms =1.00784u

Total mass in 72u

The term for molecules with identical chemical formulas but with atoms differing in three-dimensional orientations is isomers.

Isomers are compounds that have the same molecular formula, but their atoms are arranged differently in space. There are two main types of isomers: structural isomers and stereoisomers. Structural isomers have their atoms connected in a different order, while stereoisomers have the same connectivity but differ in the arrangement of their atoms in three-dimensional space.

Stereoisomers can be further classified into enantiomers, which are mirror images of each other, and diastereomers, which are not mirror images. Understanding isomers is essential in chemistry, as different isomers can have distinct physical, chemical, and biological properties.

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The rate at which N\(_{2}\) disappears is 0.016 M/s, while the rate at which H\(_{2}\) disappears is 0.0213 M/s.

In the balanced chemical equation N\(_{2}\)(g) + 3 H\(_{2}\) (g) → 2NH\(_{3}\)(g), the stoichiometric coefficients represent the mole ratios between the reactants and products.

Since the reaction rate is given for NH\(_{3}\), we can determine the rates of disappearance of  N\(_{2}\) and H\(_{2}\) by comparing their stoichiometric ratios in the reaction.

The stoichiometric ratio between  N\(_{2}\) and NH\(_{3}\) is 1:2, meaning for every mole of  N\(_{2}\) consumed, 2 moles of NH\(_{3}\) are produced. Therefore, the rate of disappearance of  N\(_{2}\) is half of the rate of formation of NH\(_{3}\).

Similarly, the stoichiometric ratio between H\(_{2}\) and NH\(_{3}\) is 3:2. This means that for every 3 moles of H\(_{2}\) consumed, 2 moles of NH\(_{3}\) are produced. Therefore, the rate of disappearance of  H\(_{2}\) is (2/3) times the rate of formation of NH\(_{3}\).

Given the rate of formation of NH\(_{3}\) as 0.032 M/s, the rate of disappearance of  N\(_{2}\) would be 0.016 M/s (0.032 M/s ÷ 2), and the rate of disappearance of  H\(_{2}\) would be approximately 0.0213 M/s (0.032 M/s × 2/3).

Therefore, the rate of disappearance of  N\(_{2}\) is 0.016 M/s, and the rate of disappearance of  H\(_{2}\) is 0.0213 M/s.

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The daily mean, given the data from the question is 15 °C

Mean = Sumation of data / Number of data

Mean = (20 + 10) / 2

Mean = 30 / 2

Mean = 15 °C

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Answer:

The mass of chlorine to react completely with 5.0  moles of aluminum is 531.75 grams.

Explanation:

Aluminum reacts with chlorine gas to form aluminum chloride through the following reaction, which is balanced (In a chemical equation, the number of atoms of each element in the reactants must be equal to the number of atoms of each element in the products In order to comply with the Law of Conservation of Mass, that is, in a chemical reaction the mass remains constant, that is, the mass that is consumed from the reactants is the same as that obtained from the products of the reaction):

2 Al + 3 Cl₂ ⇒ 2 AlCl₃

The rule of three is a way of solving problems of proportionality between three known values ​​and one unknown, establishing a proportionality relationship between all of them. A proportionality is direct when one magnitude increases the other also does it, and if the magnitude decreases the other in the same way. In this case, the rule of three, knowing a, b and c and with x being the unknown, is applied as follows:

a ⇒ b

c ⇒ x

So \(x=\frac{c*b}{a}\)

In this case the rule of three can be applied as follows: if by stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction) 2 moles of aluminum react with 3 moles of chlorine, 5 moles of aluminum with how many moles of chlorine do they react?

\(moles of chlorine=\frac{5 moles of aluminum*3 moles of chlorine}{2 moles of aluminum }\)

moles of chlorine= 7.5

Since the molar mass of the gas Cl2 is 70.9 grams/mole, you can apply the following rule of three: if 1 mole has 70.9 grams, 7.5 moles, how much mass does it have?

\(mass of chlorine=\frac{70.9 grams*7.5 moles}{1 mole}\)

mass of chlorine= 531.75 grams

The mass of chlorine to react completely with 5.0  moles of aluminum is 531.75 grams.

Answer:

B. Anyone can make a claim, but a scientific claim is backed by experimental evidence.

<3 Have a nice day!!

Answer:

the awnser is B i got it right

Explanation:

The molarity of the solution containing 8.0 g of NaOH in 400 mL of NaOH solution is 0.5 M (moles per liter).

To find the molarity of a solution containing 8.0 g of NaOH in 400 mL of NaOH solution, you will need to follow these steps:

Step 1: Determine the molecular weight of NaOH.
NaOH (sodium hydroxide) has a molecular weight of 40 g/mol. This is calculated by adding the atomic weights of sodium (Na, 22.99 g/mol), oxygen (O, 16.00 g/mol), and hydrogen (H, 1.01 g/mol).

Step 2: Calculate the moles of NaOH in the solution.
To find the moles of NaOH, you'll need to use the mass of NaOH and its molecular weight. The formula is:

moles of NaOH = (mass of NaOH) / (molecular weight of NaOH)

moles of NaOH = (8.0 g) / (40 g/mol) = 0.2 moles

Step 3: Convert the volume of the solution to liters.
Molarity is defined as moles of solute per liter of solution. Therefore, you need to convert the volume of the solution from milliliters (mL) to liters (L). To do this, use the conversion factor:

1 L = 1000 mL

Volume in liters = (400 mL) * (1 L / 1000 mL) = 0.4 L

Step 4: Calculate the molarity of the solution.
Now that you have the moles of NaOH and the volume of the solution in liters, you can calculate the molarity of the solution using the formula:

Molarity = (moles of solute) / (volume of solution in liters)

Molarity = (0.2 moles) / (0.4 L) = 0.5 M

So, the molarity of the solution containing 8.0 g of NaOH in 400 mL of NaOH solution is 0.5 M (moles per liter).

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Answer: 2 Na (s) + Cl(g) -> 2 NaCl (s)

Explanation:

If a change in the ecosystem caused the number of species to stay the same and the total number of individuals to increase then The biodiversity index would increase".

An ecosystem's efficiency (the quantity of food energy transformed into biomass) and the quality of its services (which frequently include preserving the soil, cleaning the water that runs through it, as well as providing food and shade, etc.) both decrease with declining biodiversity.

An ecosystem's efficiency (the quantity of food energy transformed into biomass) as well as the quality of its services (which frequently include preserving the soil, cleaning the water which flows through it, as well as providing food as well as shade, etc.) both decrease with declining biodiversity.

Therefore, the correct option will be (4)

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Answer:

0.444 mile

Explanation:

The percent yield of CCl₄ from the reaction of 18.0 g of carbon disulphide with 22.0 grams of Cl₂ is 77.3%

Equation of reaction:

CS₂ +  3 Cl₂ ----> CCl₄ +  S₂Cl₂

molar mass of CS₂ = 78 g/mol

molar mass of Cl₂ = 71 g/mol

molar mass of CCl₄ = 154 g/mol

78 g of CS₂ reacts with  * 71 g of Cl₂

78 g of CS₂ reacts with 213 g of Cl₂

18 g of CS₂ reacts with 213 * 18/ 78 g of Cl₂

18 g of CS₂ requires 49.1 g of Cl₂

3 moles of Cl₂ produces 1 mole of CCl₄

213 g of Cl₂ produces 154 g of CCl₄

22.0 g of Cl₂ will produce 154 * 22 / 213 g of CCl₄

22.0 g of Cl₂ will produce 15.9 g of CCl₄

Actual yield = 12.3 g

Expected yield = 15.9 g

Percent yield = 12.3/15.9) * 100%

Percent yield = 77.3 %

The percent yield of CCl₄ from the reaction of 18.0 g of carbon disulphide with 22.0 grams of Cl₂ is 77.3%

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A person uses 720 kcal on a long bike. A. The energy in joules is equal to 3221680 Joules. B. The energy in kilojoules is 3221.689 KJ.

The term energy is defined as the capacity for doing work. It is exist in different types like potential, kinetic, thermal, electrical, chemical, nuclear, or other forms.

Given the energy used for the bike is 770 kcal.

We know that

1 cal = 4.184 J

The energy in Joules = 770 × 1000 × 4.184

= 3221680 J

The energy in kilojoules =  3221689 / 1000

= 3221.689 KJ

Thus, A. The energy in joules is equal to 3221680 Joules. B. The energy in kilojoules is 3221.689 KJ.

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Liquids are more compressible than solids.

In liquids there is space between the molecules, not a lot, but there is enough space to offer some compressibility. Solids are arranged in regular patterns and their molecules are almost fixed close together.

We should add approximately 600 mg of magnesium sulfate to the one-liter IV solution to achieve the desired concentration.

The first step to convert mEq to milligrams is to know the atomic weight of magnesium, which is 24.3. To get 10 mEq of magnesium ion per liter, we need to add 1,203 milligrams of magnesium sulfate (10 x 24.3 x 2 x 1000 / 1) to a one liter IV solution. Therefore, the answer is 1,203 milligrams of magnesium sulfate should be added to the IV solution. Remember to always round to the nearest whole number in this case, so the answer would be 1,203. The MEW of MgSO₄ is its molecular weight (120) divided by the valence of Mg²⁺ (2). Thus, MEW = 120 / 2 = 60. Next, multiply the desired milliequivalents (10 mEq) by the MEW (60) to obtain the required amount in milligrams: 10 mEq x 60 mg/mEq = 600 mg. Therefore, you should add approximately 600 mg of magnesium sulfate to the one-liter IV solution to achieve the desired concentration.

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Answer:

I think it is increasing

The pH of the solution is approximately 7.21.

The acid dissociation reaction for sodium hydrogen sulfite is:

\(HSO3- + H2O ⇌ H3O+ + SO32-\)

The acid dissociation constant (Ka) for this reaction is:

\(Ka = [H3O+][SO32-]/[HSO3-]\)

We can use the expression for the acid dissociation constant to determine the pH of the solution.

Since equal numbers of moles of Na2SO3 and NaHSO3 are added, we can assume that the concentrations of Na2SO3 and NaHSO3 are equal, and that the initial concentration of HSO3- is equal to the initial concentration of NaHSO3. Let x be the concentration of H3O+ and SO32- that is formed when the acid dissociation reaches equilibrium. Then, the initial concentration of \(HSO3-\) is also x.

Substituting these concentrations into the expression for Ka, we get:

\(Ka = x^2 / x = x\)

Solving for x gives:

\(x = Ka = 6.2 × 10^-8\)

The pH of the solution can be calculated from the concentration of H3O+:

\(pH = -log[H3O+]\)

Since x = [H3O+], we have:

\(pH = -log(6.2 × 10^-8) ≈ 7.21\)

Therefore, the pH of the solution is approximately 7.21.

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Answer:

22

Explanation:

22

Answer:

1.T

2.I

Explanation:

hope it help

#carry on learning

The object and description that matches is Object 2 and T.

Object 1 has no matching description.

A Fish aquarium filter is a filter whose function is to clean the water of debris, removes the toxic buildup of ammonia and nitrates, and aerates the water so that fish can in a conducive environment and breathe properly

An engine oil filter is a filter whose function is to filter and remove contaminants that may be present in the engine oil, transmission oil, lubricating oil, or hydraulic oil in order for proper functioning of the engine.

Therefore, the object and description that matches is Object 2 and T.

Object 1 has no matching description.

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The correct Option is C. Electrons are transferred → Ions form → Ions are attracted to each other.

The right request of steps during the development of an ionic bond is:

C: Electrons are transferred → Ions form → Ions are attracted to each other

In ionic holding, at least one electrons are moved from a metal particle to a non-metal molecule, framing positive and negative particles, separately. The contrary charges of the particles draw in one another, subsequent in the arrangement of an ionic compound. Accordingly, the right request of steps in the development of an ionic bond is first, electrons are moved starting with one molecule then onto the next, then particles are framed, lastly, the oppositely charged particles are drawn to one another to shape an ionic compound.

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The complete question is:

Which shows the correct order of steps during the formation of an ionic bond?

A: Ions are attracted to each other → Electrons are transferred → An ionic compound forms

B: An ionic compound forms → Ions are attracted to each other → Electrons are transferred

C: Electrons are transferred → Ions form → Ions are attracted to each other

D: Ions form → Electrons are transferred → Ions are attracted to each other

Answer: C

Explanation: JUST TOOK THE QUIZ HOPE THIS HELPED

Answer:

12gram

Explanation:

test told me

Answer:

1.6125 g/cm^3

Explanation:

Density= mass/volume