3
Atomic
Atomic
Atomic
ons, an...
Protons
Neutrons Electrons
symbol
number
mass
TABLE...
lack to ...
B
6
11
24
31
37
39
89

White vinegar typically consists of 93%–96% water and 4–7% acetic acid. It can be used to cooking, bake, cleaning, and get rid of weeds. It can also help you lose weight and lower your blood sugar and cholesterol. Consumption is safe in moderation, but excessive consumption or when combined with certain medications could be harmful.

Apple cider vinegar is widely used in cooking and as a salad dressing because it contains acetic acid and nutrients like vitamins C and B vitamins. But at the same time, it's been utilized customarily as medication. It helps in losing weight.

Learn more about vinegar, here:

https://brainly.com/question/23700611

#SPJ1

The water cycle, also known as the hydrologic cycle, is the continuous movement of water on, above, and below the surface of the Earth.

The water cycle involves a series of physical processes, including evaporation, condensation, precipitation, and runoff, that work together to move water from one location to another and to maintain the balance of water on Earth.

The water cycle begins when water from oceans, lakes, rivers, and other bodies of water evaporates into the atmosphere due to the heat from the sun. As water vapor rises into the atmosphere, it cools and condenses into clouds. When the clouds become saturated with water vapor, precipitation occurs in the form of rain, snow, sleet, or hail.

Learn more about water cycle:https://brainly.com/question/31195929

#SPJ1

Answer:

THE ANSWER IS CORRECT!!

Answer:

a. Nitrogenase

b. Reductase

c. Reductase

d. Nitrogenase

Explanation:

Reductase is a enzyme which promotes chemical reduction for a substance. It is also known as iron protein as iron is main component in reductase. Nitrogenase are molybdenum because they sulfur as co factor

Answer:

0.0192 moles

Explanation:

One mole of any gas occupies 22.414 L at S.T.P

setting up mole and volume ratio;

 mole   :    volume

   1        :    22.414

   X       :    0.43

   X = 0.43/22.414

    X = 0.0192 moles

Answer:

I'm pretty sure k

Explanation:

I'm not for sure I'm trying to help

Answer:

Potassium

Explanation:

Atomic size decreases across a Period, from left to right as we face the Table, and INCREASES down a Group, a column of the Periodic Table.

Answer:

(a) 4p: ml = -3, -2, -1, 0, +1, +2, +3

(b) 3d: ml = -2, -1, 0, +1, +2

(c) 2s: ml = -1, 0, +1

(d) 5p: ml = -4, -3, -2, -1, 0, +1, +2, +3, +4

Explanation:

Manetic quantum numbers determine the spatial orientation and number of orbitals in the subshell. ml is from -l to +l.

We can see here that the catalytic cycle for the hydrogenation of alkenes using Wilkinson's catalyst involves several steps.

Here's an overview of the catalytic cycle, including the necessary details:

i. Chemical structure of the catalyst:

Wilkinson's catalyst, also known as chloridotris(triphenylphosphine)rhodium(I), has the following chemical structure: [RhCl(PPh3)3]

ii. Molecular geometry of the catalyst:

The Wilkinson's catalyst has a trigonal bipyramidal geometry around the rhodium center. The three triphenylphosphine (PPh3) ligands occupy equatorial positions, while the chloride (Cl) ligand occupies an axial position.

iii. Type of reactions involved:

The catalytic cycle involves several reactions, including:

iv. Starting material, reagent, and solvent:

The starting material is an alkene, and the reagent is Wilkinson's catalyst ([RhCl(PPh3)3]). The reaction is typically carried out in a suitable solvent, such as dichloromethane (CH2Cl2) or tetrahydrofuran (THF).

v. Major and minor end-products:

The major end-product of the hydrogenation reaction is the fully saturated alkane, resulting from the addition of hydrogen across the double bond. The minor end-product may include cis- or trans-configured alkanes if the original alkene substrate possesses geometric isomers.

vi. Intermediates:

The intermediates in the catalytic cycle include:

These intermediates play a crucial role in facilitating the hydrogenation reaction and enabling the catalytic cycle to proceed.

Learn more about Wilkinson’s catalyst on https://brainly.com/question/31972308

#SPJ1

Answer:

sodium carbonate

Explanation:

sodium carbonate

Answer:

ok, here is your answer

Explanation:

AI-generated answer

To find the mass of oxygen that reacted, we need to use the Law of Conservation of Mass, which states that in a chemical reaction, the mass of the reactants equals the mass of the products.

First, we need to find the number of moles of hydrogen that reacted:

Molar mass of hydrogen (H₂) = 2.016 g/mol

Number of moles of H₂ = mass/molar mass = 46.2 g/2.016 g/mol = 22.92 mol

Next, we need to use the balanced chemical equation to find the number of moles of water produced:

hydrogen + oxygen → water

2H₂ + O₂ → 2H₂O

From the equation, we can see that for every 2 moles of H₂, 1 mole of O₂ is required to produce 2 moles of H₂O. Therefore, the number of moles of O₂ required to produce 22.92 moles of H₂O is:

Number of moles of O₂ = 1/2 x 22.92 mol = 11.46 mol

Finally, we can find the mass of oxygen that reacted by using its molar mass:

Molar mass of oxygen (O₂) = 32.00 g/mol

Mass of oxygen = number of moles x molar mass = 11.46 mol x 32.00 g/mol = 366.72 g

Therefore, the mass of oxygen that reacted is 366.72 g.

After analysing the given options and data we conclude that the matching of the given options  as  

1) Proposed by Nicolaus Copernicus and Aristarchus - heliocentric model
2) Proposed by Aristotle - 3) geocentric model
3) geocentric model - A) Earth at the center of the universe
4) The universe started from a single point - C) Big Bang Theory
5) Proposed by George Lemaitre - C) Big Bang Theory
6) The sun at the center of the universe - 3) geocentric model
7) heliocentric model - 6) The sun at the center of the universe

The Big Bang Theory is a scientific explanation regarding the original creation of the universe. The theory is based on several key assumptions, one of which is the isotropy of the universe. This assumption projects that the universe, more or less, appears the same in all directions of time and space.

Another key theory is that of cosmic inflation, which projects why the universe is so symmetrical on such a significant scale.
To learn more about Big bang theory
https://brainly.com/question/6841128
#SPJ1

Answer:

I’m going with her it c

Explanation:

Answer:

it maybe C

Explanation:

Answer:

C

Explanation:

The maximum distance between the two white balls is 2R, and the maximum angle between them is 180 degrees (or π radians).

Maximum distance between the balls:

The maximum distance between the two white balls will be achieved when they are placed at opposite ends of a diameter of the circular region.

In this case, the distance between them will be equal to the diameter of the circle, which is 2R.

Maximum angle between the balls:

To find the maximum angle between the two balls, imagine the center of the circle as the vertex of the angle, and the positions of the two balls as the endpoints of the angle's two sides.

Since the balls are located at opposite ends of a diameter, the angle formed will be a straight angle, which is 180 degrees (or π radians).

So, the maximum distance between the two white balls is 2R, and the maximum angle between them is 180 degrees (or π radians).

Read more about max distance here:

https://brainly.com/question/2264671

#SPJ1

Two white balls, A and B, are placed on a flat surface inside a circular region of radius R. What is the maximum distance and maximum angle between the balls that can be achieved

The highest boiling point based on the data is option 4

Compared to alcohols of comparable molecular weight, carboxylic acids often have higher boiling temperatures. Between the hydrogen atoms of adjacent molecules and the oxygen in the carboxyl group of carboxylic acids, strong intermolecular hydrogen bonds can develop. Because it takes more energy to break the intermolecular interactions and change the substance from a liquid to a gas during boiling, these hydrogen bonds help materials have higher boiling temperatures.

Although carboxylic acids and alcohols are both capable of forming hydrogen bonds, carboxylic acids have higher boiling temperatures due to the extra carboxyl group that they contain.

Learn more about boiling point:https://brainly.com/question/1514229

#SPJ1

Answer:

904.014 j/kgk

Explanation:

Mass of metal = 45g

Temperature of metal = 85.6°

Mass of water = 150

Temperature of water = 24.6

Final temperature of system = 28.3

Heat lost by metal = Heat gained by water

m1 * c1 * dt = m2 * c2 * dt

Q = quantity of heat

Q = m*c*dt

dt = change in temperature

dt of water = 28.3 - 24.6 = 3.7

dt of metal = 85.6 - 28.3 = 57.3

Specific heat capacity of water, c = 4200

(45 * 10^-3) * c * 57.3 = (150 * 10^-3) * 4200 * 3.7

2.5785c1 = 2331

c1 = 2331 / 2.5785

= 904.01396

= 904.014 j/kgk

We want to find the concentration of the resulting solution of mixing 35mL of a given solution and 0.225 L of water.

We will find that the concentration is 13.5%.

First, we need to write both of these in the same units.

We know that:

1000 mL = 1L

Then:

35 mL = 0.035 L

So when we mix the solution and the water we end with a total volume of:

V = 0.035L + 0.225L = 0.260L

The concentration of solution will be equal to the quotient between the volume of solution we used (0.035 L) and the total volume of the mixture (0.260L)

We will get:

Concentration = (0.035L)/(0.260L) = 0.135

Now to write it as a percentage, we only need to multiply this by 100%.

0.135*100% = 13.5%

This means that the mixture has a concentration of the 13.5%.

If you want to learn more, you can read:

https://brainly.com/question/202460

Given that, the sample of a substance who only oxidizable material is tin in the +2 state and we are meant to the determine the percentage composition of tin in the substance;

Then, the percentage composition of the tin in the substance is calculated as 172.84%

From the given information:

The molecular weight is the addition of all the atomic masses of a compound.

The molecular weight of K₂Cr₂O₇ is calculated as follows:

= (2 × 39.1) + (2 × 52) + (7 × 16)

= 294.2

The molecular weight of Sn²⁺ = 118.7

The oxidation half-reaction for Tin(ii) ion is as follows:

\(\mathbf{Sn^{2+}\to Sn^{4+}+2e^{-}}\)

From the above equation, Tin (ii) ion oxidizes to Tin (iV) ion

The reduction of K₂Cr₂O₇ In the acidic medium, reduce Cr₂ to Chromium Cr³⁺.

\(\mathbf{K_2 Cr_2O_7 + 14H^{+}+6e^- \to 2K^+ + 2r^{3+} + 7H_2O}\)

To calculate the percentage % of Tin in the sample, we must first know the Equivalent weight of each substance.

Calculating the equivalent weight (Eq. weight) of each substance in the samples, we have the following:

For K₂Cr₂O₇:

\(\mathbf{Eq. weight = \dfrac{molecular \ weight }{numbers \ of \ electrons \ lost \ or \ gained }}\)

\(\mathbf{Eq. weight \ of \ K_2Cr_2O_7 = \dfrac{294.2 }{6}}\)

\(\mathbf{Eq. weight \ of \ K_2Cr_2O_7 = 49.03 \ g/eq}\)

\(\mathbf{Eq. weight \ of \ Sn^{2+} = \dfrac{118.7 }{2}}\)

\(\mathbf{Eq. weight \ of \ Sn^{2+} =59.35 g/eq}\)

The next step is to determine the Normality of the Solution.

Normality refers to the mole number per liter of the solution

\(\mathbf{Normality \ of \ K_2Cr_2O_7 = \dfrac{1.226 \ g }{49.03}\times \dfrac{1000}{250}}\)

\(\mathbf{= \dfrac{4.904}{49.03} N}\)

So, 23.90 mL of  \(\mathbf{ \dfrac{4.904}{49.03} N}\) of K₂Cr₂O₇ is required to be present in the solution.

= \(\mathbf{=23.90 mL \times \dfrac{4.904}{49.03 } \ of \ Sn \ ion}\)

Thus, the amount of Sn in the sample is calculated as:

\(= \mathbf{\dfrac{4.904}{49.03}\times \dfrac{59.35}{1000}\times 23.90 \ mL}\)

= 0.1419 g

Finally, the percentage composition of tIn (Sn) in the sample is:

\(\mathbf{= \dfrac{0.1419}{0.0821}\times 100\%}\)

= 172.84%

NOTE: A 0.0821g sample of the substance was given. Ideally, it should be 0.821g. But the calculation was based on the data given.

Therefore, from the above explanation, we can conclude that the percentage % of Sn in the sample is 172.84%

Learn more about Redox reactions here:

https://brainly.com/question/13978139?referrer=searchResults

Mass of Nitrogen= 42 grams

Given

one mole of Sodium azide

Required

mass of Nitrogen

Solution

Reaction

The decomposition of one mol of sodium azide :

2 N a N 3 ( s ) → 2Na ( s ) + 3 N2 ( g )

From the equation, the mol ratio of N a N 3 ( s ) :  N2 ( g ) = 2 : 3, so mol N2 :

= 3/2 x mol N a N 3

= 3/2 x 1

= 1.5 moles

Mass of Nitrogen

= mol x molar mass

= 1.5 x 28 g/mol

= 42 grams

The rate law is the relationship between the rate of a reaction and the rate constant, as well as the concentration of reactants raised to various powers.

In chemical kinetics, the rate law (also known as the rate equation) is a mathematical equation that describes the rate of a chemical reaction as a function of the concentrations of the reactants. The rate law provides a quantitative way of expressing how the rate of a reaction depends on the concentration of each reactant, as well as any other factors that may affect the reaction rate, such as temperature or the presence of a catalyst. The general form of a rate law is:

rate = k[A]^m[B]^n

where "rate" is the rate of the reaction, [A] and [B] are the concentrations of the reactants A and B, respectively, and k is the rate constant. The exponents m and n are the reaction orders with respect to A and B, respectively, and they determine how the rate of the reaction changes with changes in the concentration of each reactant.

0.072 M/min is the correct answer.

r2 = 0.2/5

r1/r2= [A1/A2]m

K=1/25

r= K×1/8= 0.072 M/min

The between relationship the rate of a reaction and the rate constant, as well as the concentration of the reactants raised to various powers for the overall process, is expressed by the rate law.

To learn more about the rate law, click the given link ;

brainly.com/question/7694417

#SPJ4

Answer:

The atomic size decreases with an increase in atomic number when we move from left to right.

Explanation: Hope it helps you:))))))

                      Have a great day.

Refer the product in the image.The transfer of a proton (H+) in chemistry typically occurs through a mechanism known as an acid-base reaction.

This process involves the transfer of a proton from an acidic species (the proton donor) to a basic species (the proton acceptor), leading to the formation of a new acidic species and a new acid-base reactions species. In the final structure, the tetrahedral shape of the molecule and the absence of charge indicate that the proton transfer has resulted in the formation of a neutral species. In other words, the proton has been transferred from an acidic species to a basic species, neutralizing both species and resulting in a neutral compound with a tetrahedral shape. However, the general idea of the transfer of a proton from an acidic species to a basic species remains a key principle in understanding acid-base reactions.

Learn more about acid-base reactions here:

https://brainly.com/question/10467673

#SPJ4

Refer the below image to answer the Question:

The half reaction with a more positive standard reduction potential will proceed spontaneously in a redox reaction

The half reaction with a more positive standard reduction potential will undergo reduction when compared to the half reaction with a more negative standard reduction potential.

Oxidation-reduction reactions, often known as redox reactions, are a set of chemical reactions that involve electron transfer between reactants. In a redox reaction, one reactant is oxidized, losing electrons, while the other reactant is reduced, gaining electrons.

The oxidation half-reaction is the process of losing electrons and increasing the oxidation number, whereas the reduction half-reaction is the process of gaining electrons and decreasing the oxidation number. The total reaction is referred to as the redox reaction.

Half-reaction:Half-reaction refers to the two parts of an oxidation-reduction reaction that happen separately. A half-reaction must always be either an oxidation reaction or a reduction reaction. It also describes the movement of electrons and hydrogen ions in an equation.

Know more about redox reaction    here:

https://brainly.com/question/21851295

#SPJ8

Explanation:

Force=mass *acceleration

F=300*5

f

F=1500N

The equilibrium concentration of I2 is 3.6 × 1\(0^{-4}\) M.

Equilibrium is a state of balance in a reaction. This means that the left hand side of the reaction is equal to the right hand side of the reaction. In short it means that the reactants are equal to the products formed. The input is equal to the output hence a state of equilibrium.

The equilibrium constant for the reaction H2(g) + I2(g) ⇌ 2HI(g) is given by:

Kc = ([HI]²)/([H2][I2])

We are given that Kc = 62.5 at 800 K, [HI] = 0.15 M, and [H2] = 0.10 M. We need to find the equilibrium concentration of I2.

Plugging in the given values into the equation for Kc, we get:

62.5 = (0.15²)/(0.10[I2])

Solving for [I2], we get:

[I2] = (0.15²)/(62.5 × 0.10)

[I2] = 0.00225/6.25

[I2] = 3.6 × 1\(0^{-4}\) M

More equilibrium questions can be obtained here:https://brainly.com/question/15181617

#SPJ11