85.0g of barium metal are added to 275ml of 3.55M solution of hydrochloric acid, how many milliliters of hydrogen gas are collected at 18.5oC and 755.5mmHg in this single replacement reaction?

Answer:

0.76moles of sucrose

Explanation:

1 mol = 6.022 x 10^23 molecules

4.6 x 10^23 molecules = X x 6.022 x 10^23

X = 0.7639

X = 0.76moles

The best explanation for why a firework being ignited is an example of an exothermic reaction and not an endothermic reaction is:

The fireworks give off heat.

Heat is emitted into the environment in an exothermic reaction. When a firework is lit, it undergoes a number of chemical processes inside the firework combination, which produces gases and produces a great deal of heat. Fireworks' distinctive visual display and audible effects are produced when heat is released as light and sound.

In contrast, heat is taken from the environment during an endothermic reaction. If a reaction were endothermic, it would need an outside energy source to continue, and because it would be absorbing heat from its environment, it would feel chilly to the touch.

However, because they release heat and energy and brighten the night sky, fireworks are instances of exothermic reactions.

To know more about heat:

https://brainly.com/question/32136211

#SPJ2

Answer:

Universe, galaxy, solar system, star, planet, moon and asteroid.

Explanation:

You're welcome!

Answer:

Explanation:

The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or into metamorphic rock. Sedimentary rock can change into metamorphic rock or into igneous rock. Metamorphic rock can change into igneous or sedimentary rock.

Igneous rock forms when magma cools and makes crystals. Magma is a hot liquid made of melted minerals. The minerals can form crystals when they cool. Igneous rock can form underground, where the magma cools slowly. Or, igneous rock can form above ground, where the magma cools quickly. idk if this helped*

Segments are an important concept in geometry, and they are defined as a portion of a line that has two endpoints. Without more information about the context in which these segments are located, we cannot definitively say why one is shorter than the other. However, we can use these examples to illustrate the importance of considering the endpoints and context when comparing segment lengths in geometry.

To start, we need to consider the endpoints of each segment. Segment BC has endpoints B and C, while segment DE has endpoints D and E. Next, we can look at the location of these endpoints in relation to each other.

One possibility is that segment DE is simply longer than segment BC because the distance between points D and E is greater than the distance between points B and C. However, this may not be the case since we are given no information about the relative positions of these points.

Another possibility is that the segments are located in different parts of a larger figure, and the surrounding geometry affects their lengths. For example, if segment DE is part of a triangle with a longer base than the triangle containing segment BC, then segment DE would be longer even if the endpoints D and E were closer together than the endpoints B and C.

Complete question - Explain why the segment bc is significantly shorter than segment de in a triangle?

For more such questions on Segments.

https://brainly.com/question/12961019#

#SPJ11

EDTA (ethylenediaminetetraacetic acid) is commonly used to determine the hardness of water due to its ability to form complexes with metal ions, particularly calcium and magnesium ions.

Water hardness refers to the concentration of calcium and magnesium ions present in water. These ions can cause scaling, reduce the effectiveness of soaps, and have other negative effects. EDTA acts as a chelating agent, meaning it can bind to metal ions and form stable complexes.

In the process of determining water hardness, a known amount of EDTA solution is added to a water sample. The EDTA molecules form complexes with the calcium and magnesium ions present in the water.

The endpoint of the titration is reached when all the metal ions are complexed by the EDTA, resulting in a color change or an indicator reaching a specific endpoint.

To know more about hardness of water refer:

https://brainly.com/question/28178305

#SPJ11

Answer:

I think its. SO2

Explanation:

the S is singular and there is 2 Os and thats what the model shows so I think I'm right

There are two characteristics of molecules, one is geometry and other is shape. Shape is excluding lone pair surrounding the central element and geometry is including the lone pair. Therefore, the molecule that the ball and stick model represents is BF\(_2\). The correct option is option C.

VSEPR stands for valence shell electron pair repulsions. VSEPR theory is used to predict the shape and geometry of molecules on the basis of valence electrons pairs that are present around the central element of the molecule.

According to VSEPR theory, Lone pair lone pair repulsion is greater than bond pair bond pair repulsion. There are so many limitations of VSEPR theory. There is a repulsion between bond pair electrons and lone pairs present on the central element.

Therefore, the molecule that the ball and stick model represents is BF\(_2\). The correct option is option C.

To know more about VSEPR theory, here:

https://brainly.com/question/19582124

#SPJ2

Answer:

Explanation:She was wrong

Answer:

sorry but dorks dont learn maths

Explanation:

just kidding no offense but i think umm 1st one will stay same

i searched google

Answer:

2.0179701e-22

Explanation:

A) The number of H₂O molecules in 0.23 moles is equal to 1.5 × 10²³.

B) The single displacement reaction is,

Ca + 2HCl →  CaCl₂ + H₂

C)  The double displacement reaction is,

Na₂SO₄ + 2NH₄Cl → 2NaCl  + (NH₄)₂SO₄

A displacement reaction is one in which a set of atoms in a molecule are replaced by another set of atoms.

When an element leaves its compound or when one element is replaced by another from its own compound, a single displacement reaction can be demonstrated as a type of redox reaction.

In aqueous solutions, double displacement reactions take place where ions precipitate and exchange ions.

Hydrogen gas and calcium chloride are produced in a single displacement reaction between calcium and HCl acid.

Ca + 2HCl →  CaCl₂ + H₂

To know more about displacement reaction visit:

brainly.com/question/29307794

#SPJ4

Answer:

All matter is made from atoms. Every substance (oxygen, lead, silver, neon ...) has a unique number of protons, neutrons, and electrons. Oxygen, for example, has 8 protons, 8 neutrons, and 8 electrons.

Explanation:

The molarity of the solution is approximately 5.0 M.

To calculate the molarity (M) of a solution, we need to divide the moles of solute by the volume of the solution in liters.

First, we need to convert the mass of NaOH to moles. The molar mass of NaOH is 22.99 g/mol for Na, 16.00 g/mol for O, and 1.01 g/mol for H, giving us a total molar mass of 39.99 g/mol for NaOH.

Moles of NaOH = 120.0 g / 39.99 g/mol

= 3.00 mol

Next, we divide the moles of NaOH by the volume of the solution in liters:

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

M = 3.00 mol / 9.60 L

= 0.3125 M

Rounding to the appropriate number of significant figures, the molarity of the solution is approximately 5.0 M.

To learn more about molarity, here

https://brainly.com/question/31545539

#SPJ4

Answer:

59.46 g

Explanation:

To answer this question, the molecular weight of ammonium sulfate must be computed.  To accomplish this, the weights of the individual elements must be noted.
N=14.01\(\frac{g}{mol}\)

H=1.01\(\frac{g}{mol}\)

S=32.07\(\frac{g}{mol}\)

O=16.00\(\frac{g}{mol}\)

To compute the molecular weight:

\(2[14.01\frac{g}{mol}+4(1.01\frac{g}{mol})]+32.07\frac{g}{mol}+4(16.00\frac{g}{mol})=132.14\frac{g}{mol}\)

To calculate the mass:

\(0.45 mol(\frac{132.14g}{1mol})=59.463g\)

It determines the energy level of the electron. As n increases, the energy of the electron also increases. There is a maximum of seven energy levels, corresponding to values of n ranging from 1 to 7.

Azimuthal quantum number (l):

It defines the shape of the electron's orbital and its angular momentum. The value of l is dependent on the value of n and can range from 0 to n-1. Magnetic quantum number (m):

It identifies the specific orbital in which the electron is present and the direction of the electron's spin.

Electronic spin quantum number (s): It specifies the orientation of the electron's spin. The value of s can be either\(+1/2 or -1/2\). The values of these quantum numbers are used to calculate the total energy of an electron using the formula\(E = -13.6 eV/n².\)

To know more about electron visit:

https://brainly.com/question/12001116

#SPJ11

Here is your answer look at your image below

Answer:

b i think because i think so

Answer:

bromine (br)

Explanation:

edg 2021

Answer:

Explanation:

Sound energy: Crowd cheering

Chemical energy: Body converts nutrients into energy to run

Mechanical energy: The camera filming the photo

The molecules in a sample of solid so2 are attracted to each other by a combination of London forces and dipole-dipole interactions.

Other names for London dispersion forces include dispersion forces, London forces, fluctuation induced dipole bonds, instantaneous dipole-induced dipole forces, and weakly van der Waals forces. Since the electrons are often arranged symmetrically with regard to the nucleus, they serve as a form of electrically symmetric force between atoms and molecules.

Dipole-dipole interactions, which result from the close association of induced or permanent dipoles, are weak interactions. Van der Waals interactions are the name given to these forces taken as a whole. These interactions are widespread in proteins and range widely in strength.

To know more about dipole dipole interactions, refer:

https://brainly.com/question/11828970

#SPJ4

Answer:

Please find the definition and example of neutralization reaction below

Explanation:

In chemistry, neutralization reaction is a type of reaction involving a base and an acid to form salt and water. In other words, when an acid and a base comes together chemically to form a salt and water, a neutralization reaction is said to occur.

For example; in a reaction between sodium hydroxide (NaOH) and hydrogen chloride (HCl) as follows:

HCl(aq) + NaOH(aq) → NaCl(s) + H2O(l)

In this neutralization reaction, the HCk is the acid while the NaOH is the base (reactants). For the products, the NaCl is the salt while H2O is water.

Answer:

I believe it may be-

1. Series

2. Parallel

3. Parallel

4. Series

Explanation:

In a series circuit, electricity only has one path to follow while a parallel circuit has more than one path to follow.

In order to determine the mole ratio, you need to begin with a balanced chemical equation.

Answer:

Explanation:

english please

After considering the given the data we conclude that the  ionization energy generally increases from left to right across a period. Therefore, the element with the highest ionization energy in period 3 would be located on the right side of the periodic table.

We can also see from the search results that helium has the highest ionization energy of all the elements, while sodium has the lowest ionization energy in period 3. Therefore, we can conclude that the element with the highest ionization energy in period 3 is located to the right of sodium.
Based on the periodic table, we can see that the elements in period 3 are:
Sodium (Na)
Magnesium (Mg)
Aluminum (Al)
Silicon (Si)
Phosphorus (P)
Sulfur (S)
Chlorine (Cl)
Argon (Ar)
Therefore, the element with the highest ionization energy in period 3 is most likely Argon (Ar), which is located on the far right side of the period.
In summary, the element with the highest ionization energy in period 3 is most likely Argon (Ar).
To learn more about periodic table
https://brainly.com/question/25916838
#SPJ4

The number of moles of oxygen atoms present in 5.00 mol of diphosphorus pentoxide would be 25 mol.

Diphosphorus pentoxide goes by the chemical formula, P₂05. This means that 1 mole of the compound contains 2 moles of phosphorus atoms and 5 moles of oxygen atoms according to the following:

P₂05 --> 2P + 5O

1 mol P₂05 = 5 mol oxygen atoms

5.00 mol P₂05 = 5x5/1

                        = 25 mol oxygen atoms.

In other words, 5.00 mol of diphosphorus pentoxide contains 25 mol of oxygen atoms.

More on moles of atoms can be found here: https://brainly.com/question/19727769

#SPJ1