11.select the correct description for the atoms below​

The geometry of the complex ion\([Co(H_2O)^4I_2]\) is octahedral. This is because the Co atom has 6 coordinate bonds (4 from the water molecules and 2 from the Iodine atoms).

A bond is a debt security, in which the issuer (usually a corporation or government) promises to pay a fixed amount of interest over a specified period of time, and to repay the principal amount of the loan at maturity. Bonds are commonly used by companies, municipalities, states, and sovereign governments to finance a variety of projects and activities. The interest paid on bonds is usually fixed, and the bond issuer typically pays out the interest semiannually. Bond prices are determined by the amount of interest the bond pays, the length of time until maturity, and the creditworthiness of the issuer.

Its valence electronic configuration is 3d7, which allows it to form 6 coordinate bonds. The octahedral geometry is the most stable geometry for this complex ion because it allows the Co atom to achieve a complete octet of electrons, which results in lower energy for the system.

To learn more about bonds

https://brainly.com/question/29282058

#SPJ4

Answer:

Nucleus and mitochondria. Organism.

Explanation:

The two main organelles are the nucleus and the mitochondria . The nucleus is boss of the factory(controls everything). The mitochondria is the power house of the cell (provides the energy). Humans are organisms (made of organs systems working together) . Another example is plants they are also organisms

2 moles of Cr are generated.

The reduction of Cr³⁺ ions to chromium metal can be represented by the following balanced half-reaction:
Cr³⁺ + 3e⁻ → Cr
According to the stoichiometry of the reaction, 3 moles of electrons are required to reduce 1 mole of Cr³⁺ ions to chromium metal.

If 6 moles of electrons are passed through the electrolytic cell, the number of moles of Cr generated can be calculated as follows:
(6 moles of electrons) / (3 moles of electrons per mole of Cr) = 2 moles of Cr

When 6 moles of electrons are passed in an electrolytic cell to reduce Cr³⁺ ions to chromium metal, 2 moles of Cr are generated.

To know more about stoichiometry, visit:

https://brainly.com/question/30215297

#SPJ11

\(\qquad \qquad\huge \underline{\boxed{\sf Answer}}\)

Here's the solution ~

1 mole of NaCl weigh 58 grams

2 moles of NaCl weigh (58 × 2) = 116 grams

therefore, the correct choice is A.)

\(\qquad \sf  \dashrightarrow \: 116 \: g\)

Answer:

Group 2

Explanation:

Group 12 and 13 is incorrect because they're are most likely to gain electrons making it a negative ion. even if it loses electrons it will most likely lose more than one or two. Group 1 is incorrect because it can not form a +2 ion because it has only one electron to begin with. Therefore group 2 is correct.

Answer:

Group 2

Explanation:

During the breakdown of fatty acids, not all acetyl CoA enters the citric acid cycle, and your body converts some acetyl CoA to ketone bodies.

Acids are molecules or ions that can donate protons, known as Bronsted-Lowry acids, or form covalent bonds with electron pairs, known as Lewis acids. The first category of acids is proton donors or Brønsted-Lowry acids.

Blood is normally slightly alkaline, with a normal pH range of about 7.35 to 7.45. Normally, the body keeps blood pH near 7.40. Doctors measure a person's acid-base balance by measuring the pH of the blood and the levels of carbon dioxide (acid) and bicarbonate (base). No oil is either an acid or a base. Neutral. Oil is a neutral, nonpolar chemical. That is, it is a viscous liquid at room temperature. It is immiscible with water, but soluble in alcohol and ether.

Learn more about acid here

https://brainly.com/question/25148363

#SPJ4

Answer:

ketones and aldehydes

Explanation:

just took it!

The amount of excess reagent remaining when 4.0 g zinc reacts with 2.0 g phosphorus is 0.22 g Zn (Option C).

To determine the excess reagent, we need to first determine the limiting reagent. This can be done by converting the masses of zinc and phosphorus to moles using their respective molar masses:

Zinc: 4.0 g / 65.38 g/mol = 0.061 mol

Phosphorus: 2.0 g / 30.97 g/mol = 0.065 mol

Since zinc is the limiting reagent (it produces less moles of product than phosphorus), all of the phosphorus will react and some of the zinc will be left over. To determine how much zinc remains, we need to calculate the amount of zinc that reacted with the phosphorus:

1 mol of zinc reacts with 1 mol of phosphorus

0.065 mol of phosphorus reacts with 0.065 mol of zinc

The amount of zinc that reacted is therefore 0.065 mol. To determine how much zinc is left over, we subtract this amount from the initial amount of zinc:

0.061 mol - 0.065 mol = -0.004 mol

Since we cannot have a negative amount of a substance, we know that all of the phosphorus reacted and there is 0.004 mol (or 0.22 g) of excess zinc remaining. Therefore, the correct answer is 0.22 g Zn.

Learn more about excess reagent: https://brainly.com/question/31171741

#SPJ11

The number of candies each of the grandchild would get is 24, 18 and 16 candies respectively.

Given the following data:

To determine the number of candies each of the grandchild would get:

Note: The candies were distributed to the grandchildren inversely proportional to their ages.

Mathematically, this is given by this expression:

\(Candies \; \alpha\; \frac{1}{Age}\)  ≡ \(C = \frac{k}{A}\)

Thus, the above expression is re-written for all the grandchildren as follows:

\(58 = \frac{k}{6} + \frac{k}{8}+\frac{k}{9}\)

Lowest common multiple (LCM) of 6, 8 and 9 is 72.

\(58=\frac{12k +8k+9k}{72} \\\\58=\frac{29k}{72}\\\\29k =72 \times 58\\\\29k =4176\\\\k=\frac{4176}{299}\)

k = 144.

For the first grandchild:

\(Candy = \frac{k}{6} \\\\Candy = \frac{144}{6}\)

Candy = 24 candies.

For the second grandchild:

\(Candy = \frac{k}{6} \\\\Candy = \frac{144}{8}\)

Candy = 18 candies.

For the third grandchild:

\(Candy = \frac{k}{6} \\\\Candy = \frac{144}{9}\)

Candy = 16 candies.

Read more on inverse proportion here: https://brainly.com/question/25147041

To solve this problem, let's use the definition for molarity:

Replacing the values of the problem:

Now, to find the mass, we multiply by the molecular weight of NaCl. (Which is about 58.44g/mol)

The answer is approximately 22.2g of NaCl

The main safety hazards of trimethylsilyl chloride (tmscl)  in the lab are,

It could cause severe eye burns.

It is harmful if absorbed through the skin. It could cause severe burns.

It may be harmful if swallowed. Causes severe digestive tract burns.

It may be harmful if inhaled. Causes chemical burns to the respiratory tract.

Prolonged or repeated skin contact may cause dermatitis.

Trimethylsilyl chloride, commonly referred to as chlorotrimethylsilane, is a silyl halide (organosilicon chemical) with the formula (CH3)3SiCl. It is also referred to as Me3SiCl or TMSCl. It is a volatile, colorless liquid that is stable when there is no water present. It has many applications in organic chemistry.

Learn more about trimethylsilyl chloride at

https://brainly.com/question/17218782?referrer=searchResults

#SPJ4

The answer is

153.7kJ.

The total energy needed for the water molecules to transition from ice to water and subsequently from water to vapor is what you are asked to calculate.

In order to do this, you'll need to know:

Heat of fusion of water:  ΔHf = 334J/g;

Heat of fusion vaporization of water: ΔHv = 2257J/g;

Specific heat of ice: c = 2.09J/g∘C;

Specific heat of water: c = 4.18J/g∘C;

Specific heat of steam: c = 2.09J/g∘C;

So, the following steps describe the overall process:

1. Calculate the amount of heat needed to raise the ice's temperature from − 15.0∘C to 0∘C:

q1 = m ⋅ Cice ⋅ ΔT = 50.0g ⋅ 2.09J/g⋅∘C ⋅ (0∘C−(−15∘C)) = 1567.5J

2. Calculate the amount of heat needed to convert 0∘C ice to 0∘C water:

q2 = m⋅ ΔHf = 50.0g ⋅ 334J/g = 16700J

3. Calculate how much heat is needed to evaporate water at 0∘C to water at 100∘C:

q3 = m ⋅ Cwater ⋅ ΔT = 50.0g ⋅ 4.18J/g⋅∘C ⋅ (100∘C−0∘C) = 20900J

4. Calculate the amount of heat needed to convert 100∘C water to 100∘C vapor:

q4 = m ⋅ ΔHv = 50.0g ⋅ 2257J/g = 112850J

5. Identify the heat needed to transition from 100∘C vapor to 120∘C vapor:

q5 = m ⋅ Cvapor ⋅ ΔT = 50.0g ⋅ 2.09J/g⋅∘C ⋅ (120∘C−100∘C) = 2090J

Therefore, the total heat required is

qTOTAL = q1 + q2 + q3 + q4 + q5 = 152696.5J = 153.7kJ

Lets learn more about similar numericals

https://brainly.com/question/9764207

The solution's boiling point will be 101.5 C. Freezing point depression = 2 * 1.027 * kg * mol * kg * mol * = 3.82 K. Thus, the solution's fusion point will be 3.8 C.

The vapour pressure drops when a non-volatile solute is dissolved in a solvent. A lower temperature is needed for the solvent to freeze as a result.

Due to the salt in seawater, it freezes at a lower temperature than fresh water—approximately 28.4 degrees Fahrenheit. Yet, because only the water part of seawater freezes, very little salt is present in the ice when it is formed.

To know more about Freezing point visit:-

https://brainly.com/question/1550397

#SPJ1

The term defined as the fundamental particles of protons and neutrons is nucleons and the correct option is option B.

Nucleons include both protons and neutrons, which are the primary constituents of atomic nuclei. Electrons, on the other hand, are negatively charged particles that orbit the nucleus. Molecules are formed by the bonding of atoms, and quarks are elementary particles that combine to form nucleons.

Atoms with the same number of protons but different numbers of neutrons are called isotopes. They have almost similar chemical properties but are different in mass and therefore in physical properties.

Thus, the ideal selection is option B.

Learn more about Nucleons, here:

https://brainly.com/question/16835497

#SPJ12

Answer: \(\% diss =4.4x10^{-2}\%\)

Explanation:

Answer:

The first question is option 2

and the second question in option 1

Explanation:

Answer:

False. Answer in pic above

In fact protons have no role in chemical reactions. The regrouping of atoms itself forms the new products in chemical reactions. The reactions involves the loss/gain or sharing of electrons.

A chemical reaction is a chemical change in which two or more atoms combine together to form a new product or a compound decomposes to form its constituent compounds. This  involves breaking or making of bonds.

In a chemical reaction, no change occurs in the nuclear composition but the valence electrons are involved in the reaction. Atoms loss or gain electrons or share valence electrons with other atoms to form ne compounds.

The electrostatic force of attraction or the overlapping of atomic orbitals make the new products in a chemical reaction. Hence, the statement is false.

Find more on chemical reactions:

https://brainly.com/question/29039149

#SPJ2

Answer:

The most common forms of N fertilizer include anhydrous ammonia, urea, and urea-ammonium nitrate (UAN) solutions.

Explanation:

Answer:

A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.

Explanation:

Answer: membrane and cell wall

Explanation: this is because the cell wall is only known to happen in plant cells and a membrane is in both plant and animal cells so it is most likely membrane and cell wall.

Answer:

C

Explanation:

Answer:

That means, under 10.0kPa of pressure, 0.4g of gas can be dissolved in 1L

Explanation:

Based on Henry's law, the solubility of the gas is directly proportional to the pressure. The equation is:

P1S2 = P2S1

Where P is pressure and S solubility of 1, initial state and 2, final state of the gas.

Replacing:

P1 = 50.0kPa

S1 = 2.0g/L

P2 = 10.0kPa

S2 = ??

50.0kPa*S2 = 10.0kPa*2.0g/L

S2 = 0.4g/L

That means, under 10.0kPa of pressure, 0.4g of gas can be dissolved in 1L

Answer: 0.4 g/L

Explanation:

S2 = S1 x P2 / P1

S2= 2 g/L x 10 kPa / 50 kPa

CROSS OUT

S2= 2g/L x 10 / 50

S2= 20 g/L/50

S2= .4 g/L

The final molarity or \([H^+]\) of the fish tank is 0.08 M.

To determine the final molarity or [H⁺] of the fish tank, we need to calculate the new concentration after diluting the 2 L of 2 M acid to a final volume of 50 L.

The concept we can use here is the principle of dilution, which states that the number of moles of solute remains constant when a solution is diluted.

The formula for dilution is:

M₁V₁ = M₂V₂

Where:

M₁ = Initial molarity/concentration of the acid

V₁ = Initial volume of the acid

M₂ = Final molarity/concentration of the diluted solution

V₂ = Final volume of the diluted solution

In this case, we have:

M₁ = 2 M (initial molarity)

V₁ = 2 L (initial volume)

M₂ = ? (final molarity)

V₂ = 50 L (final volume)

Using the dilution formula, we can solve for M₂:

M₁V₁ = M₂V₂

(2 M)(2 L) = M2(50 L)

4 mol = 50 M₂

M₂ = 4 mol / 50 L

M₂ = 0.08 M

Therefore, the final molarity or \([H^+]\) of the fish tank is 0.08 M.

Learn more about molarity on:

https://brainly.com/question/30404105

Answer:

option A,B,C

Explanation:

HCl

H2O

HC2H3O2

In the list given , following substance are classified as Acid:

HCl , HC₂H₃O₂ .

What is an Acid ?

A substance that can donate a proton or accept an electron pair to form a bond is called an Acid.

An acid turns Litmus paper red and has pH < 7 , It has the property of neutralizing alkali.

It has sour taste and can dissolve metals.

HCl is a strong acid , H₂O is neutral , HC₂H₃O₂ (Acetic acid) is a weak acid , NaCl is Salt , KOH and Mg(OH)₂ are strong base.

To know more about Acid

https://brainly.com/question/14072179

#SPJ2

Answer:

about 2 years I think, you might have to ask your dentist

Explanation:

Answer:

it really depens of ur treatment i had braces and it took a year and now i got them again and they say its gonna take a year so it depends on ur treatment

Explanation:

21.16 g. Balance the equation, as stated. Mo2O3 + 3 ZnO = 3 Zn + 2 MoO3. and have their molar masses ready. Zn - 65.38 MoO3 - 143.96 Mo2O3 - 239.92.

When a chemical reaction is complete, the limiting reagent—also known as the limiting reactant or limiting agent—is the reactant that has been completely consumed. As the reaction cannot proceed without this reagent, the amount of product that can be produced is constrained. Excess reagents or excess reactants are any reagents that are present in amounts greater than those necessary to cause a reaction with the limiting reagent (sometimes abbreviated as "xs"). Although the amount of product produced when the limiting reagent interacts entirely is defined as the theoretical yield, the limiting reagent must be determined in order to calculate the percentage yield of a reaction. Considering  the reaction's description in the balanced chemical equation.

To know more about above topic visit:

https://brainly.com/question/26905271

#SPJ1

Answer:The correct answer is (a) 0.0886 M.

Explanation:

To calculate the molarity of household bleach in moles per liter of NaOCl, we can use the given equation:

Molarity = (% NaOCl * 10 * density) / Molecular Weight

Let's substitute the given values into the equation:

% NaOCl = 6.0% = 0.06 (decimal form)

Density = 1.10 g/mL = 1100 g/L

Molecular Weight of NaOCl = 74.45 g/mol

Molarity = (0.06 * 10 * 1100) / 74.45

Molarity = 0.0886 M

Therefore, the molarity of household bleach in moles per liter of NaOCl is 0.0886 M.

The molarity of household bleach in moles per liter of NaOCl is 0.886 M.

To calculate the molarity of household bleach in moles per liter of NaOCl, we can use the formula:

Molarity = (% NaOCl * 10 * density) / Molecular Weight

Given that household bleach contains 6.0% w/w of NaOCl, the percentage is 0.06. The density of the bleach solution is 1.10 grams/ml, or 1100 grams per liter. The molecular weight of NaOCl is 74.45 grams/mole.

Plugging these values into the formula, we have:

Molarity = (0.06 * 10 * 1100) / 74.45

Simplifying the expression, we get:

Molarity = 0.886

Therefore, the molarity of household bleach in moles per liter of NaOCl is 0.886 M.

So, the correct answer is c) 0.886 M.

Know more about Molarity here:

https://brainly.com/question/31545539

#SPJ11