please help asappp‍♀️!

Answer:

don't sent such messages whatever you are

According to the concept of solubility and dissociation, aspirin at pH 8 and 10 undergoes dissociation to yield ions.

An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each resulting in the formation of ionic bond.

Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created by chemical interactions . They are very reactive in their gaseous state and rapidly react with oppositely charged ions resulting in neutral molecules.Ions are generated on dissociation.

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Answer:

Compounds are formed by the combination of cation and anion.

On combining all the possible positive ions with negative ions, we get

CuCl  

2

​  

,CuSO  

4

​  

,NaCl,Na  

2

​  

SO  

4

​  

,FeCl  

3

​  

,Fe  

2

​  

(SO  

4  

)  

3

Explanation:

ur ans

Answer:

hail Hydra kandksmak Yes

Answer:

[tex]\boxed {\boxed {\sf False}}[/tex]

Explanation:

Kinetic energy is the energy of movement or energy at work. An example is a ball rolling down a hill.

Potential energy is stored energy due to the position of an object. For example, a ball resting at the top of a hill.

The question incorrectly described potential energy as kinetic energy. Therefore, the answer is false.

Answer: The half-life of the compound is 93 minutes

Explanation:

Expression for rate law for first order kinetics is given by:

[tex]t=\frac{2.303}{k}\log\frac{a}{a-x}[/tex]

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant =100

a - x = amount left after decay process = (100-36) = 64

a) for completion of 36 % of reaction

[tex]60=\frac{2.303}{k}\log\frac{100}{100-36}[/tex]

[tex]k=\frac{2.303}{60}\log\frac{100}{64}[/tex]

[tex]k=0.0074min^{-1}[/tex]

b) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

[tex]t_{\frac{1}{2}}=\frac{0.693}{k}[/tex]

[tex]t_{\frac{1}{2}}=\frac{0.693}{0.0074min^{-1}}=93min[/tex]

The half-life of the compound is 93 minutes

Answer:

True

Explanation:

Carbon is the backbone of life on Earth. Most of Earth's carbon, about 65,500 billion metric tons is stored in rocks. The rest is in the ocean, atmosphere, plants, soil, and fossil fuels. Carbon flows between each reservoir in an exchange called the carbon cycle, which has slow and fast components.

0.104 mol Br₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

6.25 × 10²² molecules Br₂

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

0.103786 mol Br₂ ≈ 0.104 mol Br₂

Answer:

pickles are ligit good

Explanation:

i like pickles but not his

Answer:

Explanation:

A conjugate base of HIO3 is IO3– ion

The chemical formula of the conjugate base of the Bronsted Lowry acid HIO₃ can be represented as IO₃⁻.

According to Bronsted - Lowry theory, acid is a substance that donates a proton or H⁺ ion and forms its conjugate base while the base is a substance that accepts a proton or H⁺ ion and forms its conjugate acid.

Bronsted-Lowry acid donates a proton to the other compound and forms a conjugate base.

Acid   ⇄   Conjugate base  +   Proton

If a conjugate base accepts a proton back then acid reforms.

The Bronsted-Lowry base is a substance that accepts a proton from other compounds.

Base + Proton ⇄ Conjugate acid

If a conjugated acid donates its proton then the base reforms.

The conjugate base of the Bronsted-Lowry acid HIO₃ is:

HIO₃  ⇄  H⁺ +  IO₃⁻

Therefore, the conjugate base of the Bronsted-Lowry acid HIO₃ is IO₃⁻.

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Answer:

whats the question?

Explanation:

Solution :

[tex]$Fe(OH)_3+3CH_3COOK \rightarrow Fe(CH_3COO)_3 + 3KOH$[/tex]

(iron          (potassium

hydroxide)     acetate)

Number of moles of [tex]$Fe(OH)_3 = \frac{\text{mass of }Fe(OH)_3}{\text{molar mass of }Fe(OH)_3}$[/tex]

                                                [tex]$=\frac{2.143 \ g}{106.867 \ g/mol}$[/tex]

                                                = 0.02005 mol

Number of moles of [tex]$CH_3COOK = \frac{\text{mass of }CH_3COOK}{\text{molar mass of }CH_3COOK}$[/tex]

                                                [tex]$=\frac{5.478 \ g}{98.15 \ g/mol}$[/tex]

                                                = 0.0585 mol

Since 1 mol of [tex]$Fe(OH)_3$[/tex] reacts with 3 mols of [tex]$CH_3COOK$[/tex]

Therefore, number of moles of [tex]$CH_3COOK$[/tex] reacted [tex]$=\frac{0.0585}{3 }$[/tex] mol

                                                                                    = 0.0195 mol

Therefore the limiting reagent is [tex]$CH_3COOK$[/tex] and hence the number of moles of [tex]$Fe(CH_3COO)_3$[/tex] produced is 0.0195 mol

Amount of [tex]$Fe(CH_3COO)_3$[/tex]  produced = moles x molar mass

                                                           = 0.0195 moles x 232.98 g/mol

                                                          = 4.5431 g

Answer:

12.33

Explanation:

92.5/7.5= 12.33

30g of the sterling silver ring contains, 27.75 g of silver and 2.25 g of copper.

Cross multiply fractions by multiplying one fraction's denominator by the other fraction's numerator and then comparing the two values. The larger fraction is the one with the higher value.

Therefore,

( cross multiplication),

100 × X = 92.5 × 30

X = 92.5 × 30/ 100

100g sterling silver = 7.5g copper

30g sterling silver= Y g copper

(cross multiply)

100 × Y =  7.5 × 30

Y= 7.5 × 30 / 100

therefore, 30g of sterling silver ring contains, 27.75 g of silver and 2.25 g of copper.

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Answer:

False.

Explanation:

I majored in Chemistry

Answer:

B) Cations lose electrons having a charge of positive.

Explanation:

Hello there!

In this case, it is widely known that ions are classified as positive cations and negative anions, since the former is produced when a metal loses electrons and the latter when a nonmetal gains electrons; in such a way, the correct choice is:

B) Cations lose electrons having a charge of positive.

Best regards!

Answer:

Either B or A

Explanation:

The other answer said B, and I said either B or A, so anyone who is currently cheating on a chemistry test, try B

Answer:

Respiration

I hope this helps!

Answer:

[tex]320.8329\ \text{g}[/tex]

Explanation:

[tex]n[/tex] = Moles of [tex]CO_2[/tex] = [tex]7.29\ \text{moles}[/tex]

[tex]M[/tex] = Molar mass of [tex]CO_2[/tex] = [tex]44.01\ \text{g/mol}[/tex]

Mass is given by

[tex]m=nM[/tex]

[tex]\Rightarrow m=7.29\times 44.01[/tex]

[tex]\Rightarrow m=320.8329\ \text{g}[/tex]

The mass of the [tex]CO_2[/tex] gas will be [tex]320.8329\ \text{g}[/tex].

Answer:

12.2 g

Explanation:

Step 1: Write the balanced equation for the synthesis of SO₃ from S

S + 1.5 O₂ ⇒ SO₃

Step 2: Calculate the moles corresponding to 4.91 g of S

The molar mass of S is 32.07 g/mol.

4.91 g × 1 mol/32.07 g = 0.153 mol

Step 3: Calculate the theoretical yield, in moles, of SO₃ from 0.153 moles of S

The molar ratio of S to SO₃ is 1:1. The moles of SO₃ produced are 1/1 × 0.153 mol = 0.153 mol.

Step 4: Calculate the mass corresponding to 0.153 moles of SO₃

The molar mass of SO₃ is 80.06 g/mol.

0.153 mol × 80.06 g/mol = 12.2 g

Answer:

For a collision where objects will be moving in 2 dimensions (e.g. x and y), the momentum will be conserved in each direction independently (as long as there's no external impulse in that direction). In other words, the total momentum in the x direction will be the same before and after the collision.

Explanation:

Answer: 3.79*10^24 atoms

Explanation:

1 mole = 6.02214076*10^23 atoms

Answer:

physical

Explanation:

if it is asking to determine what it is a sign of or how to identify that characteristic it would be a physical.

Statement that gives description as regards energy and bonding changes between atoms such as fluorine become a molecule of fluorine, bond Energy is released as a bond is formed. Thus option 4 is correct.

The Bond Energy otherwise called as bond enthalpy  is a quantity that offers insight into the strength of a chemical bond.

The  ‘bond energy’ can also be represented as “the average value obtained from the bond dissociation enthalpies of all the chemical bonds  in a given chemical compound.

The bond energy of a chemical bond is directly proportional to the stability of that bond which implies that the greater the bond energy o between two atoms, the greater the stability of that chemical bond.

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Your question was incomplete. The probable question.

Which statement describes the energy and bonding changes as two atoms of fluorine become a molecule of fluorine?

1.Energy is absorbed as a bond is broken.

2.Energy is absorbed as a bond is formed.

3.Energy is released as a bond is broken.

4.Energy is released as a bond is formed.

Answer:

Point B is in Between two convection, and is just below a ridge . This cause the cell to turn left because the flow of fluid hits the bottom of the crust this is the best I can do to Help you understand.

Answer:

A

Explanation:

it is no longer going to unripen/ went through a chemical reaction                                                                                

Answer:

60 g

Explanation:

Mass = Density × Volume

Mass = 1.25 × 48

Mass = 60 g

I hope this helps!

não se esqueça de mim não sei

3

2

1

4

6

5

not a 100% sure but i think this is it.

Answer:

No

Explanation:

it will not be a irreversible change because u can give back the pen if it is in its original state and the shop keeper might accept it back that is what mostly happens. if the pen breaks or is used then it might me called a irreversible change until then it is reversible if not used yet.

thank u

Answer:

No

this is reversible because you can return the pen.