How many electrons must be lost or gained by each of the following atoms to attain a noble gas electron configuration? (Be sure to indicate whether they are lost or gained!)

Ca
Al
S
P
Na
Cl

Answer:

2H2+ 02-->2H20

So 4H2 + 202-->4H20

so the answer is 4 water molecules.

Explanation:

First find the mass of 1 mole of water (Molecular mass)

\( H_{2} O = 2H + O \)

\(

= 2(1) + 32 \)

\(

= 34 \: grams

\)

Hence 1 mole of water is 34 g

Compare

1 mole = 34 g

1.33 mole = x g

\( \frac{x}{34} = \frac{1.33}{1} \)

\(

x = 1.33 \times 34 \)

\(

\color{blue}{\boxed{x = 45.2}} \: \: \: \: to \: 3 \: s.f.

\)

Therefore 1.33 moles of water is 45.2 grams

The mass of the substances can be given by the molar mass and the moles of the substances. The mass of 1.33 mole of water is expressed in grams as, 23.94 grams.

The mass has been defined as the product of the moles of the substance and the molar mass in grams per mole. The mass is given in grams and has a formula,

Moles = mass ÷ molar mass

Mass = molar mass × moles

Given,

Moles = 1.33 moles

Molar mass of water (H₂O) is calculated as = 2 (1) + 16= 18 grams per mole

Using the formula of mole, mass is calculated as:

Mass = molar mass × moles

mass = 1.33 × 18

= 23.94 grams

The mass of the substance can be calculated if the value of the molar mass and the moles of the substance has been known. The molar mass of the substance can be calculated by adding the mass of the individual masses of the element in a molecule.

Therefore, 1.33 mol of water contains 23.94 grams.

Learn more about mass, here:

https://brainly.com/question/20970268

#SPJ2

This battery could be made stronger when we make lithium the anode and make zinc the cathode.

We know that the term electron affinity has to do with the fact the a specie is able to attract electrons. Hence, the specie that can be able to attract electrons is said to be have a greater electron affinity.

If we look at the order of the reactivity of the metals, we can see that the lithium has more tendency to exist as a positive ion as such the electron affinity of the lithium atom is very negative and it does not attract electrons.

Learn more about electron affinity:https://brainly.com/question/13646318

#SPJ1

The treatment requirement (% removal) in the agricultural waste discharge to achieve 50mg/L concentration in the withdrawal location 80 km downstream is 99.57%

a. Control Volume

The schematic diagram of the control volume is given below.

b. Steady-state Phosphate concentration in water withdrawn 90 km downstream

The steady-state phosphate concentration in the water withdrawn 90 km downstream is given by:

C2 = (Q1C1 + Q2C2)/(Q1 + Q2)

Where,

C2 = Concentration of phosphate in the water withdrawn 90 km downstream

C1 = Concentration of phosphate in the upstream water (25 ppm)Q1 = Upstream flow (40 m 3/s)Q2 = Agricultural discharge (2.5 m^3/s)C2 = ((40 x 25) + (2.5 x 1000)) / (40 + 2.5)C2 = 59.3 ppm

Therefore, the steady-state phosphate concentration in the water withdrawn 90 km downstream is 59.3 ppm.c. Treatment requirement (% removal) in the agricultural waste discharge to achieve 50mg/L concentration in the withdrawal location 80 km downstream

The concentration of the waste-stream that will produce 50mg/L downstream concentration is given by:

50 = (Q1C1 + Q2C2)/(Q1 + Q2)C2 = ((40 x 25) + (2.5 x C2))/(40 + 2.5)50 = (1000 x 2.5) / (40 + 2.5) + (40 x 25) / (40 + 2.5)C2 = 4.3 ppm

The % removal from the difference of the influent wastewater concentration with respect to the initial waste-stream concentration is given by:

% removal = (C in - C out) / C in x 100Where,Cin = Influent wastewater concentration (1000 ppm)

C out = Concentration of waste-stream required to produce 50 ppm downstream concentration (4.3 ppm)\% removal = (1000 - 4.3) / 1000 x 100\% removal = 99.57%

Therefore, the treatment requirement ( % removal) in the agricultural waste discharge to achieve 50mg/L concentration in the withdrawal location 80 km downstream is 99.57%.

To know more about waste discharge visit:

https://brainly.com/question/10156015

#SPJ11

Answer:

It can be expressed in several ways: molarity (moles of solute per liter of solution); mole fraction, the ratio of the number of moles of solute to the total number of moles of substances present; mass percentage, the ratio of the mass of the solute to the mass of the solution times 100; parts per thousand (ppt), grams ...

Explanation:

It can be expressed in several ways: molarity (moles of solute per liter of solution); mole fraction, the ratio of the number of moles of solute to the total number of moles of substances present; mass percentage, the ratio of the mass of the solute to the mass of the solution times 100; parts per thousand (ppt), grams ...

Answer:

Explanation:

Fossil fuels got their name because they are made from dead organisms, mostly plants that didn't decay because they were squashed under water or mud with no oxygen.

The solubility of the insoluble salts will be affected as follows:

The solubility of insoluble salts in a hydroiodic acid (HI) solution may or may not vary from its solubility in pure water due to the presence of the acid.

Considering the given insoluble salts:

Silver bromide (AgBr):

In a hydroiodic acid solution, the presence of iodide ions (I-) can form a more soluble complex with silver ions (Ag+). Therefore, the solubility of silver bromide is expected to be more in a hydroiodic acid solution compared to pure water.

Silver sulfite:

The presence of hydroiodic acid is not expected to have a significant effect on the solubility of silver sulfite.

Thus, the solubility of silver sulfite is expected to be similar to that in a pure water solution.

Lead iodide (PbI2):

Lead iodide is expected to be less soluble in a hydroiodic acid solution compared to pure water. This is because the iodide ions from the acid can compete with the lead ions, reducing the solubility of lead iodide.

Iron(III) hydroxide (Fe(OH)3):

Iron(III) hydroxide is insoluble in both water and hydroiodic acid. Therefore, its solubility is expected to be similar in both solutions.

Learn more about solubility at: https://brainly.com/question/9098308

#SPJ1

To prepare the desired solution, the mass of the solute (sucrose) must be calculated based on the desired percentage concentration and the total mass of the solution.

To prepare a 15% by mass solution with a total mass of 650g, the mass of sucrose needed to be dissolved into water is 97.5 grams. This can be calculated by multiplying the total mass of the solution by the percent by mass concentration as shown below:

Mass of sucrose = 15% x 650g = 97.5g.

Therefore, 97.5g of sucrose needs to be dissolved into water to prepare a 15% by mass solution with a total mass of 650g.

To prepare a 15% by mass solution with a total mass of 650g, 97.5 grams of sucrose needs to be dissolved into water. This is determined by multiplying the total mass of the solution (650g) by the percentage by mass concentration (15%). The resulting mass of sucrose (97.5g) is then dissolved into the water to make the solution.

In conclusion, to prepare the desired solution, the mass of the solute (sucrose) must be calculated based on the desired percentage concentration and the total mass of the solution.

To know more about solute visit:

brainly.com/question/7932885

#SPJ11

In the given reaction  ₉₆²⁴⁶Cm + ₆¹²C ---> 4 ¹on + X  it shows an example of an artificial transmutation reaction.

An artificial transmutation reaction may resemble this. The method of causing nuclear reactions by blasting atomic nuclei with high-energy particles like ions or neutrons is referred to as artificial transmutation.

In this instance, the transmutation is induced by bombarding the carbon nucleus (C) with additional particles or a high-energy beam, resulting in the production of the following products: Element X and 4 1on (Helium-4)

Blasting an element with a basic particle, an element can be artificially transmuted into a different element.

Learn more about artificial transmutation, here:

https://brainly.com/question/2472288

#SPJ1

The correct option is $26785.To calculate the total cost per equivalent unit using the weighted average method, we need to consider the costs incurred in both the beginning work in process and the units added during the period.

First, let's calculate the equivalent units of production for both conversion and materials:

Conversion costs:

Beginning work in process: 400 units × 20% complete = 80 equivalent units

Units added during the period: 2,000 units × 40% complete = 800 equivalent units

Total equivalent units for conversion = 80 + 800 = 880 equivalent units

Material costs:

Beginning work in process: 400 units × 30% complete = 120 equivalent units

Units added during the period: 2,000 units × 50% complete = 1,000 equivalent units

Total equivalent units for materials = 120 + 1,000 = 1,120 equivalent units

Next, let's calculate the total costs incurred:

Conversion costs:

Beginning work in process cost: $14,880

Costs added during the period: $409,200

Total conversion costs = $14,880 + $409,200 = $424,080

Material costs:

Beginning work in process cost: $9,900

Costs added during the period: $180,080

Total material costs = $9,900 + $180,080 = $189,980

Now, we can calculate the total cost per equivalent unit:

Total cost per equivalent unit = (Total conversion costs + Total material costs) / (Total equivalent units for conversion + Total equivalent units for materials)

Total cost per equivalent unit = ($424,080 + $189,980) / (880 + 1,120)

Total cost per equivalent unit ≈ $267.85

Therefore, the correct option is $26785.

To know more about conversion and materials, click here, https://brainly.com/question/1162213

#SPJ11

Answer:

C

Explanation:

 i hope i helped you and have a nice day...

The Correct answer is Option B) Sulfur. This is the element in pyrite that contributes to acid mine drainage.

One ingredient that should never be ignored is sulphur(S). Group 16 of the periodic table is where Sulphur is located. It is obtained as a byproduct following the manufacturing of natural gas and is non-metal. It is a bright yellow colour and has a terrible smell (like rotten eggs). Sulfur has been consumed by people for a thousand years despite its apparent physical characteristics. Why? Considering that you might just come across it on the ground.

Sulfur is a straightforward element to locate both on the ground and in the periodic table. It occupies the sixteenth position, immediately below oxygen (O). Sulfur is typically found as crystal and has a yellowish color when it occurs naturally.

To learn more about Sulphur visit:

brainly.com/question/15654465

#SPJ1

Answer:

Yes, Copper (Cu) in its pure form is a reddish-brown metallic element with high ductility and malleability that is an excellent conductor of heat and electricity: atomic weight 63.54; atomic number 29; density 8.94 g/cm3; melting point 1083°C; and boiling point 2595°C.

Answer:

no ,its not malleable

Explanation:

copper II sulphate is a blue compound , which is brittle solid , crystalline .

copper metal is malleable and ductile

Yes, nonpolar molecules generally diffuse more readily through the plasma membrane than polar molecules of the same size.

This is because the plasma membrane is composed of a lipid bilayer which has a hydrophobic interior, making it easier for nonpolar molecules to pass through.

The plasma membrane is a selectively permeable barrier that separates the cell from its external environment. It is composed of a lipid bilayer made up of phospholipids, cholesterol, and proteins.

The hydrophobic tails of the phospholipids form the interior of the membrane while the hydrophilic heads face outward, interacting with the surrounding aqueous environment.

Nonpolar molecules, such as oxygen and carbon dioxide, are able to pass through the lipid bilayer more easily than polar molecules like glucose and ions. This is because the hydrophobic interior of the membrane repels polar molecules while allowing nonpolar molecules to pass through.

When a molecule comes in contact with the plasma membrane, it will diffuse across the membrane if it is able to pass through the hydrophobic interior. The rate of diffusion is influenced by the size, polarity, and concentration gradient of the molecule.

Small nonpolar molecules, such as oxygen, diffuse rapidly through the membrane, while larger nonpolar molecules diffuse more slowly. Polar molecules, such as glucose, diffuse even more slowly, and ions require transport proteins to pass through the membrane.

Overall, nonpolar molecules diffuse more readily through the plasma membrane than polar molecules of the same size due to the hydrophobic interior of the lipid bilayer.

This property of the membrane plays an important role in regulating the movement of molecules into and out of the cell.

To learn more about diffusion, refer below:

https://brainly.com/question/20843145

#SPJ11

Answer: 65 cal

Explanation: they have to find the weight of the peanuts on a scale and per grams. Then put them in water . You should be able to get the calories

The pH of the buffer after adding 0.050 moles of HCl is approximately -∞ (negative infinity).

To determine the pH of the buffer solution after adding 0.050 moles of HCl, we need to consider the equilibrium between acetic acid \((CH_3COOH)\) and its conjugate base acetate ion \((CH_3COO^-)\) in the buffer.

The balanced equation for the dissociation of acetic acid in water is:

\(CH_3COOH \rightleftharpoons CH_3COO^- + H^+\)

Given that the buffer is made from equal-molar concentrations of acetic acid and sodium acetate, we can assume that the initial concentrations of acetic acid and acetate ion are both 0.050 moles/0.100 L = 0.500 M.

When HCl is added to the buffer, it will react with the acetate ion (CH3COO-) according to the following equation:

\(H^+ + CH_3COO^- \rightarrow CH_3COOH\)

Since the concentration of HCl is not specified, we assume it is in excess, meaning it will completely react with the acetate ion.

The moles of acetate ion consumed by HCl is equal to the moles of HCl added, which is 0.050 moles.

Since the initial concentration of acetate ion is 0.500 M, the final concentration of acetate ion is:

\(\[0.500 M - \left(\frac{{0.050 \text{{ moles}}}}{{0.100 \text{{ L}}}}\right) = 0.500 M - 0.500 M = 0 \text{{ M}}\]\)

The final concentration of acetic acid will be the same as the initial concentration, which is 0.500 M.

Now, we can calculate the pH of the resulting solution. The Henderson-Hasselbalch equation for the buffer is:

\(\[\text{{pH}} = \text{{pKa}} + \log \left(\frac{{\text{{concentration of acetate ion}}}}{{\text{{concentration of acetic acid}}}}\right)\]\)

The pKa of acetic acid is approximately 4.76.

Plugging in the values, we have:

\(\[\text{{pH}} = 4.76 + \log \left(\frac{{0}}{{0.500}}\right) = 4.76 - \infty = -\infty\]\)

Therefore, the pH of the buffer after adding 0.050 moles of HCl is approximate -∞ (negative infinity).

Note: The negative pH value indicates that the resulting solution is highly acidic.

To learn more about pH from the given link

https://brainly.com/question/12609985

#SPJ4

Answer:

20

Explanation:

owls are 10 of anything 10x 2 =20

It seems as though the value of the owl is up to you though

Hopes this helps

Answer:

True

Explanation:

An atom would carry more protons if positively charged, an equal amount of both protons and electrons if neutral, and more electrons if charged negative.

The correct answer is D) an ore. An ore refers to the naturally occurring form of a metal that is concentrated enough to make it economically viable to extract and recover the metal.

Ores typically contain a high enough concentration of the desired metal or metals to justify mining and processing operations. They are typically found in association with rocks or minerals and may require various extraction methods to obtain the metal in a usable form.

Options A) an element, B) a mineral, C) gangue, and E) an amalgam are not accurate definitions for the naturally occurring form of a metal that allows economic recovery. An element refers to a pure substance made up of only one type of atom. A mineral is a naturally occurring inorganic solid with a specific chemical composition and crystal structure. Gangue refers to the undesired material in an ore that is usually separated during the extraction process. An amalgam is a mixture of mercury with another metal or metals.

Learn more about metal here:

https://brainly.com/question/29404080

#SPJ11

The law of conservation of mass is must be applied when cooking.

Law of conservation of mass states that mass of any substance will change into another form without any loss of mass, means destroying of mass is impossible.

When we cook food then mass of conservation is applied there, for example we are boiling pulses with water then in that case the amount of formed liquid pulses is equal to the initial mass of solid pulse with water.

Hence law of conservation of mass is applicable during cooking.

To know more about conservation of mass, visit the below link:

https://brainly.com/question/13664411

#SPJ1

Answer:

HCl + KOH ⇒ KCl + H₂O

Explanation:

Which of the following is an acid-base neutralization reaction?

Sn + 2HBr ⇒ SnBr₂ + H₂. NO. This is a single displacement reaction.

HCl + KOH ⇒ KCl + H₂O. YES. An acid reacts with a base to form salt and water.

2AlCl₃ + 3Ca(OH)₂ ⇒ 2Al(OH)₃ + 3CaCl₂. NO. This is a double dispacement reaction.

2C₂H₆ +7O₂ ⇒ 4CO₂ + 6H₂O. NO. This is a combustion reaction.

Answer:

I dont even know what that even means

I hope you will find the answer

Answer:

hydrogen gas

Explanation:

Zn + 2HNO3 ------ Zn(NO3)2 + H2⬆️

Answer:

true

Explanation:

Explanation:

true. ..... .............

Answer:

i got another way forget the question thing

Explanation:

The numbers in the powers are the number of electrons in a specific orbital. so you can add them to find the atomic number

When calcium reacts with chlorine, the reaction involves: a transfer of electrons from Ca to Cl. The correct option is (a).

In the reaction between calcium (Ca) and chlorine (Cl), the electrons are transferred from calcium to chlorine. This is indicated by the formation of calcium ions (Ca²⁺) and chloride ions (Cl⁻).

Calcium has two valence electrons in its outer shell, and chlorine has seven valence electrons. Calcium tends to lose its two electrons to achieve a stable configuration, while chlorine tends to gain one electron to achieve a stable configuration of eight valence electrons.

As a result, calcium loses two electrons, which are gained by chlorine. This transfer of electrons leads to the formation of calcium ions with a +2 charge and chloride ions with a -1 charge.

The option "a. a transfer of electrons from Ca to Cl" correctly describes the electron transfer that occurs during the reaction between calcium and chlorine.

This type of reaction, involving the transfer of electrons, is known as an ionic reaction and is characteristic of the formation of ionic compounds.

To know more about "Calcium" refer here:

https://brainly.com/question/13709822#

#SPJ11

Wavelength (L) is calculated using: L = gT²/2π, here g=9.8 m/s2 and T is wave period in seconds.

Wavelength of a wave describes how long the wave is and the distance from the "crest" (top) of one wave to the crest of next wave is called wavelength. We can also measure from the "trough" (bottom) of one wave to trough of next wave and get the same value for the wavelength.

We measure wavelength in following ways:

Use photometer to measure the energy of wave.

Convert energy into joules (J).

Divide energy by Planck's constant, 6.626 x 10⁻³⁴, to get the frequency of  wave.

Divide speed of light, ~300,000,000 m/s, by frequency to get wavelength.

To know more about wavelength, refer

https://brainly.com/question/10750459

#SPJ9