The part of the atom involved in chemical bonding is the what

Explanation:

1 mol of Ba(OH)2 = 2 moles of HCl

A wet cell is an electrochemical cell in which the electrolyte is a liquid,the given statement is true.

A device known as an electrochemical cell has the ability to produce electrical energy from chemical processes taking place inside of it or utilize electrical energy from external sources to speed up chemical reactions inside of it. The energy in chemicals may be transformed into electrical energy or vice versa using these devices.

A galvanic cell or voltaic cell is an electrochemical device that uses spontaneous redox reactions to transform chemical energy into electrical energy. Example: The typical 1.5 volt cell used in consumer electronics is an illustration of a galvanic cell.

To know more about electrochemical cell refer to:

https://brainly.com/question/10470515

#SPJ4

Answer:

To find the number of molecules of lithium chloride in 78.40 g, we need to first convert the mass to moles using the molar mass of lithium chloride:

moles = mass / molar mass

moles = 78.40 g / 42.39 g/mol

moles = 1.849 mol

Now we can use Avogadro's number to convert from moles to molecules:

molecules = moles x Avogadro's number

molecules = 1.849 mol x 6.022 x 10^23 molecules/mol

molecules = 1.111 x 10^24 molecules

Therefore, there are 1.111 x 10^24 molecules of lithium chloride in 78.40 g.

Explanation:

Answer:

2

Explanation:

Explanation:

1 ) first u have to balance the equation but in this case it is already balanced.

2) checking for the limiting reactant:

13 mol O2 × (1mol H2O / 1mol of O2) = 13 mol of H2O

14 mol of ethanol × (1mol H2O/ 1molof ethanol) = 14 mol of H2O

the less amount of moles produced from the O2 so the limiting reactant is oxygen

3) calculating the products moles

13 mol O2 × (1mol H2O / 1mol of O2) = 13 mol

13 mol O2 × (1mol Ch3Cooh / 1mol O2) = 13 mol

note: the ratios obtained from the balanced equation

4) the excess reagent is the ethanol 1 mol will be remain

The atomic weight of the element is approximately 35.4535 amu.

The average mass of an element in relation to all of its isotopes and their relative abundances is known as its atomic weight. Atomic mass units, sometimes referred to as Daltons, are used to measure atomic weight. The same element can have different isotopes.

The atomic weight (also known as atomic mass) of an element is the weighted average of the masses of its isotopes, taking into account their natural abundance.

To find the atomic weight of the element given in the problem, we can use the following formula:

atomic weight = (mass1 x abundance1 + mass2 x abundance2) / 100

where mass1 and mass2 are the masses of the two isotopes, and abundance1 and abundance2 are their natural abundances as percentages.

Substituting the given values, we get: The natural abundances of the two isotopes, abundance1 and abundance2, are expressed as percentages.

Inputting the values provided yields:

atomic weight = (35.0 amu x 75.5% + 36.9 amu x 24.5%) / 100

atomic weight = (2642.5 + 904.05) / 100

atomic weight = 35.4535 amu

To know more about atomic weight visit:-

https://brainly.com/question/13000210

#SPJ1

Answer:

The answer is C

Can you put a brainliest for me

Explanation:

Answer:

the wavelength becomes shorter

Explanation:

frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer.

Aluminum is too high in the electrochemical series (reactivity series) to extract it from its ore using carbon reduction. The temperatures needed are too high to be economic. ... The aluminum oxide has too high a melting point to electrolyse on its own. The usual aluminum ore is bauxite.

Answer:

When the concentration is higher, more hydrogen ions are near the Zn atoms at any given time. This allows for more Zn atoms to be ionized and dissolved into the solution per second.

Explanation:

The given redox reaction is:

Cr2O7^2- + C2H4O → C2H4O2 + Cr3+

To balance this reaction, we first balance the oxygen atoms by adding H2O on the right side of the equation. The number of H2O molecules added depends on the number of oxygen atoms needed. In this case, we need three O atoms on the right side, so we add three H2O molecules to the right side of the equation:

Cr2O7^2- + C2H4O → C2H4O2 + Cr3+ + 3H2O

Next, we balance the hydrogen atoms by adding H+ ions on the left side of the equation. The number of H+ ions added depends on the number of hydrogen atoms needed. In this case, we need eight H atoms on the left side, so we add eight H+ ions to the left side of the equation:

Cr2O7^2- + C2H4O + 8H+ → C2H4O2 + Cr3+ + 3H2O

Finally, we balance the charge by adding electrons. The number of electrons added depends on the difference in charge on the left and right side of the equation. In this case, the left side has a charge of -2 (from the Cr2O7^2- ion), while the right side has a charge of +3 (from the Cr3+ ion). This means that we need to add 5 electrons to the left side of the equation to balance the charge:

Cr2O7^2- + C2H4O + 8H+ + 5e- → C2H4O2 + Cr3+ + 3H2O

Therefore, the coefficient for water molecules in the balanced version of the given redox reaction is 3.

To know more about redox reaction visit

https://brainly.com/question/28300253?

#SPJ11

Answer:

D

Explanation:

7 is neutral on a PH scale. Anything less is an acid and anything higher is a base. A Ph scale goes from 1-13. 8.4-7=1.4. This is a small change so it is considered a weak base. Can I get brainliest?

Answer:

D.A weak base

Explanation:

The pH of a weak base falls somewhere between 7 and 10. Like weak acids, weak bases do not undergo complete dissociation; instead, their ionization is a two-way reaction with a definite equilibrium point. While strong bases release hydroxide ions via dissociation, weak bases generate hydroxide ions by reacting with water. Ammonia (NH3) and methylamine (CH3NH2) are examples of weak bases.

Denise ought to keep detailed record of the experiment to allow someone to do the same investigation and check the accuracy of results. Option D

The term experiment has to do with cause and effect relationships. We know that the cause is what leads to the effect if the process can be tested in a laboratory. The experiment that as performed by Denise was targeted at finding what time of the day is warmest.

From the results of the experiment, we can conclude that Denise ought to keep detailed record of the experiment to allow someone to do the same investigation and check the accuracy of results.

Learn more about experiment:https://brainly.com/question/11256472

#SPJ1

Answer:

70

Explanation:

There are 5 significant figures in the problem. Since it has a decimal point, we start on the left hand side and work our way to the right. You would end up at 69, but then you have to round up since the next number is a 7, which is greater than or equal to 5.

Answer:

The loss of electrons

Explanation:

Oxidation is any chemical reaction that involves the moving of electrons. Specifically, it means the substance that gives away electrons is oxidized. Therefore, oxidation is the loss of electrons

The combined mass of the two reactions that have taken place is 145.33 g.

The combined mass of the contents of the flasks after the reaction has taken place is 114.87 g.

The percent deviation is 20.9 % and is not zero because some products escaped as gas.

The law of conservation of mass states that matter cannot be created nor destroyed.

This means that for a given chemical reaction, the total mass of the reactants will equal the total mass of the products.

The masses in the reaction are:

Mass of empty Erlenmeyer Flask (g) 30.46 g

Mass of the combined reactants =  (175.79 - 30.46) g

Mass of the combined reactants = 145.33 g

Mass of the contents of the flask after the reaction has taken place = 145.33 - 30.46) g

mass of the contents after the reaction = 114.87 g

Percent deviation = (145.33  - 114.87) / 145.33 * 100%

Percent deviation = 20.9 %

Learn more about the law of conservation of mass at: https://brainly.com/question/28218596

#SPJ1

Because they only partially ionize in solution, carboxylic acids are weak acids. When compared to a solution of a strong acid at the same concentration, their solutions contain fewer hydrogen ions. At the same concentration, the pH of a weak acid will be higher than that of a strong acid. This statement is true.

A carboxylic acid is an organic acid with a carboxyl group attached to an R-group in organic chemistry. A carboxylic acid has the general formula RCOOH or RCO2H, where R refers to the alkyl, alkenyl, aryl, or other group. Carboxylic acids are found in abundance.

Carboxylic acids do this much more readily than most other classes of organic compounds, so they are referred to as stronger acids, despite being far weaker than the most important mineral acids—sulfuric (H2SO4), nitric (HNO3), and hydrochloric (HCL) (HCl).

Because of the following factors, carboxylic acid is weaker than HCl: Carboxylic acid ions do not completely dissociate in water. Carboxylic acid, as an organic acid, does not behave like other acids because it is not ionic.

Thus, carboxylic acids are weak acids.

To learn more about the carboxylic acid, follow the link;

https://brainly.com/question/15522377

#SPJ2

Answer:

\(V_{2} = 29.28\,L\)

Explanation:

Let assume that gas behaves ideally and experiments an isobaric and isothermal processes. The following relationship is applied to determined the final volume:

\(\frac{V_{1}}{n_{1}} = \frac{V_{2}}{n_{2}}\)

\(V_{2} = V_{1} \cdot \left(\frac{n_{2}}{n_{1}} \right)\)

\(V_{2} = (12.2\,L)\cdot \left(\frac{16.8\,moles}{7\,moles} \right)\)

\(V_{2} = 29.28\,L\)

Traditionally they include boron from group 3A, silicon and germanium in group 4A, aresnic and antimony in group 5A and tellurium from group 6A, although sometimes selenium, astatine, polonium and even bismuth have also been considered as metalloids. Typically metalloids are brittle and show a semi-metallic luster.

The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium. Five elements are less frequently so classified: carbon, aluminium, selenium, polonium, and astatine.

The ionic equation for the given chemical reaction is 2 OH⁻ + 2 Al³⁺ → 2 Al(OH)₃. This equation represents the essential ions involved in the reaction and their respective stoichiometric coefficients.

To determine the ionic equation for the given chemical reaction:

Ca(OH)₂ + Al₂(SO₄)₃ → Al(OH)₃ + CaSO₄

First, we need to identify the ionic compounds and break them down into their respective ions:

Ca(OH)₂ dissociates into Ca²⁺ and 2 OH⁻ ions.

Al₂(SO₄)₃ dissociates into 2 Al³⁺ and 3 SO₄²⁻ ions.

Al(OH)₃ dissociates into Al³⁺ and 3 OH⁻ ions.

CaSO₄ dissociates into Ca²⁺ and SO₄²⁻ ions.

Now, let's write the ionic equation by representing the dissociated ions:

Ca²⁺ + 2 OH⁻ + 2 Al³⁺ + 3 SO₄²⁻ → 2 Al(OH)₃ + Ca²⁺ + SO₄²⁻

We can see that the Ca²⁺ and SO₄²⁻ ions appear on both sides of the equation and can be canceled out as they are spectator ions. So, the simplified ionic equation is:

2 OH⁻ + 2 Al³⁺ → 2 Al(OH)₃

For more such question on  ionic equation visit:

https://brainly.com/question/13879496

#SPJ8

The approximate bond angle of the substituents around a nitrogen atom in amines is generally around 109.5 degrees.

The bond angle in a molecule is determined by the repulsion between its electron pairs. In the case of amines, the nitrogen atom is sp3 hybridized, meaning it has four electron pairs arranged in a tetrahedral geometry. Three of these electron pairs are occupied by the substituent groups (such as hydrogen or alkyl groups), while the fourth electron pair is a lone pair on the nitrogen atom.
The repulsion between the lone pair and the three substituent groups causes a slight compression in the bond angles, leading to a bond angle of approximately 109.5 degrees. This is known as the tetrahedral angle, and is a common bond angle for sp3 hybridized atoms.

Bond angle: Approximately 109.5 degrees.

learn more about bond angle

https://brainly.com/question/25425872

#SPJ11

Answer:

Large leaves help plants to receive more sunlight when in tropical rainforests.

The chemical formula for magnesium acetate is Mg(C2H3O2)2. This compound is made up of one magnesium ion (Mg2+) and two acetate ions (C2H3O2-). Magnesium acetate is a white crystalline solid that is used in the production of various chemicals and in the pharmaceutical industry.

The chemical formula for nickel (III)phosphide is Nip. This compound is made up of one nickel ion (Ni3+) and one phosphide ion (P3-). Nickel (III)phosphide is a black or dark gray powder that is used in various industrial applications, including as a catalyst for chemical reactions and in the production of electronic components. It's important to note that when writing chemical formulas, it's necessary to pay attention to the valence of each element and ion involved. In the case of magnesium acetate, the magnesium ion has a valence of +2, while the acetate ion has a valence of -1. In the case of nickel (III)phosphide, the nickel ion has a valence of +3, while the phosphide ion has a valence of -3.

learn more about chemical here.

https://brainly.com/question/29240183

#SPJ11

The substance in the image above would be classified as a mixture of elements (option E).

A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.

On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.

According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.

Learn more about mixture at: https://brainly.com/question/12160179

#SPJ1

Answer:

280 liters at STP are in 8.0*10² grams of sulfur dioxide.

Explanation:

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

In this case, the molar mass of sulfur dioxide, that is, the mass of one mole of the substance, is 64 g/mole.

You can apply the following rule of three: if by definition of molar mass 64 grams of sulfur dioxide are contained in 1 mole, 8.0*10² grams are contained in how many moles?

\(amount of moles=\frac{8*10^{2}grams*1 mole }{64 grams}\)

amount of moles= 12.5 moles

Now you can apply a new rule of three: if by STP conditions 1 mole of any gas occupies a volume of 22.4 liters, 12.5 moles will occupy how much volume?

\(volume=\frac{12.5 moles*22.4 L}{1 mole}\)

volume= 280 L

280 liters at STP are in 8.0*10² grams of sulfur dioxide.

The object being described can incinerate, bury, and bulldoze things in its path, but it typically moves slowly enough for humans to get out of its way.

The description suggests that the object has destructive capabilities, including the ability to incinerate, bury, and bulldoze objects in its path. These actions imply that it possesses significant power and force. However, the statement also mentions that the object moves slowly enough for humans to avoid it. This suggests that while it may be destructive, it does not move at a high speed that would prevent humans from escaping its path.

The purpose of highlighting the object's slow movement is likely to emphasize that it poses a potential threat but allows individuals enough time to react and move away from its trajectory. This characteristic serves as a warning sign, indicating that caution should be exercised in its presence. By giving humans the opportunity to evade its path, the object's slow speed offers a level of safety, allowing individuals to escape harm's way.

Learn more about destructive capabilities here:

https://brainly.com/question/11560167

#SPJ11

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

Answer:

dont know

Explanation:

what

ajjajaahhahahaahaahahqhqjqhwjahhahhqhqqhqhhqhahqah