because its central b atom has only 6 valence electrons, the species bf3 does not exists. true or false

Answer:

It would transform the nitrogen atom to a carbon atom

Explanation:

Activities like saving electricity, water, fuel, etc. decrease your carbon footprint.

Stop purchasing water in plastic bottles. Include some of your frequent short-trip destinations on a walking or bike route. When not in use, unplug electronics and turn off the lights. Eat less red meat and more locally produced foods. To save time and money, wash your items on the cold water cycle. Some of the things we can do to lessen our carbon impact include these.

Food, consumption, transportation, and household energy are the main sources of carbon footprints. The total amount of greenhouse gases (such as carbon dioxide and methane) produced by our actions is known as a carbon footprint. One of the highest rates in the world, the average carbon footprint of a person in the United States is 16 tons.

To know more about carbon footprint, refer to the following link:

https://brainly.com/question/11628248

#SPJ4

The formula for the volume of a rectangular solid is Volume = length * width * height, or V = lwh.

Converting to cm = \( \frac{660}{10} = 66 {cm}^{3 } \\ \)

- BRAINLIEST answerer

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\\)

From the question

mass = 70 g

volume = 10 mL

We have

\(density = \frac{70}{10} \\ \)

We have the final answer as

Hope this helps you

The compound C6H12O6 is glucose and it contains three elements; carbon, hydrogen, and oxygen.

There are six carbon atoms, twelve hydrogen atoms, and six oxygen atoms in one molecule of glucose.

The formula for glucose is C6H12O6, which means that there are six carbon atoms, twelve hydrogen atoms, and six oxygen atoms in one molecule of glucose. Therefore, there are three different elements in the compound C6H12O6.

To summarize, the compound C6H12O6 contains three different elements, namely carbon, hydrogen, and oxygen.

To know more about C6H12O6 visit

https://brainly.com/question/31905060

#SPJ11

The initial concentration of A is 3.58 mol/L.

To calculate the initial concentration of A, we must first consider the rate equation for the reaction. The rate equation is given by:

Rate = k[A]

where k is the rate constant and [A] is the concentration of A. Rearranging the rate equation gives the following:

[A] = Rate/k

Therefore, we can calculate the initial concentration of A by substituting the rate constant and the concentration at t=5 seconds into the rate equation, giving us:

[A] = 0.291 s−1 / 0.081 mol/L

This gives us an initial concentration of A of 3.58 mol/L.

To learn more about concentration at

https://brainly.com/question/13872928?referrer=searchResults

#SPJ4

Answer:

Here's what I get  

Explanation:

(i) Voltaic cell

A voltaic cell is a device that uses a chemical reaction to produce electrical energy.

(ii) Overall Cell Potential

The standard reduction potentials for the half-reactions are

                               ℰ°/V

Cu²⁺ + 2e⁻ ⇌ Cu    0.34

Zn²⁺ + 2e⁻ ⇌ Zn   -0.76

The half-reaction with the more positive potential is the reduction half-reaction. It is the reaction that occurs at the cathode.

The half-reaction with the more negative potential is the oxidation half-reaction. It is the  reaction that occurs at the anode.

We reverse that half-reaction and subtract the voltages to get the cell reaction.

                                                          ℰ°/V

Cathode:  Cu²⁺ + 2e⁻ ⇌ Cu              0.34

Anode:     Zn ⇌ Zn²⁺ + 2e⁻              -0.76

Cell:          Zn +  Cu²⁺ ⇌ Zn²⁺ + Cu    1.10

\(\mathcal{E}_{\text{cell}}^{\circ} = \mathcal{E}_{\text{cat}}^{\circ} - \mathcal{E}_{\text{an}}^{\circ} = \text{0.34 V} - \text{(-0.76 V)} = \text{0.34 V} + \text{0.76 V} = \textbf{1.10 V}\)

(iii) Diagram

The specific labels will depend on your textbook.

They are often as follows.

a. Electron flow

b. Voltmeter or lightbulb

c. Electron flow

d. Cathode or Cu

e. Cu²⁺(aq) and NO₃⁻(aq)

f. Salt bridge

g. Zn²⁺(aq) and NO₃⁻(aq)

h. Anode or Zn

The salt bridge enables ions to flow in the internal circuit and to maintain electrical neutrality in the two compartments.

It often consists of a saturated solution of KCl.

As Zn²⁺ ions form in the anode compartment, Cl⁻ ions move in to provide partners for them.

As Cu²⁺ ions are removed from the cathode compartment, K⁺ ions move in to replace them.

Answer:a. Electron flow

b. Voltmeter or lightbulb

c. Electron flow

d. Cathode or Cu

e. Cu²⁺(aq) and NO₃⁻(aq)

f. Salt bridge

g. Zn²⁺(aq) and NO₃⁻(aq)

h. Anode or Zn

Explanation:

The solution that would have the lowest [OH−] is 0.50 M HCl. So, the correct option is c.

A solution is considered basic if its pOH value is low, indicating a high concentration of hydroxide ions.

That means, the amount of hydroxide ions will be lowest in the substance with the highest acidity.

Among the given solutions, HCl is the most acidic solution.

Therefore, it will have the lowest concentration of hydroxide ions.

To learn more about pOH value, click:

https://brainly.com/question/29053918

#SPJ1

Answer:

It depends on its mass and its chemical composition. Give me Brainiliest

Answer:

I think C. Hope this Helps!

Explanation:

The type of reasoning that makes a statement or prediction based on a general concept is called Inductive reasoning.

Reasoning is defined as the act of thinking in a manner that is sensible or logical.

There are different types of reasoning which includes:

Inductive reasoning is defined as the type of reasoning that involves making a general conclusion from a set of specific observation.

Learn more about reasoning here:

https://brainly.com/question/25175983

#SPJ1

Protective eyewear such as goggles or safety glasses are crucial in laboratories to protect the eyes from chemical splashes, fumes, UV exposure, and burns caused by hot plates or Bunsen burners. It is essential to wear appropriate safety goggles or glasses to ensure maximum protection and avoid any accidents that may cause severe eye damage.

Goggles or appropriate safety glasses are essential in laboratories to protect the eyes from various hazards. These hazards include chemical splashes, fumes of preservatives used on anatomy specimens, UV exposure when using UV radiation in the laboratory, and burns from the hot plate or Bunsen burner.
Chemical splashes can cause severe eye damage, and appropriate safety glasses or goggles can prevent such accidents from happening. Similarly, fumes of preservatives used on anatomy specimens can also cause harm to the eyes, and wearing protective eyewear is necessary.
UV radiation can cause photokeratitis (eye sunburn) and other eye-related problems. Therefore, when using UV radiation in the laboratory, appropriate safety goggles should be worn to avoid eye damage.
Lastly, hot plates and Bunsen burners can cause burns to the eyes, and the use of safety glasses or goggles is necessary to prevent such accidents.
In conclusion, protective eyewear such as goggles or safety glasses are crucial in laboratories to protect the eyes from chemical splashes, fumes, UV exposure, and burns caused by hot plates or Bunsen burners. It is essential to wear appropriate safety goggles or glasses to ensure maximum protection and avoid any accidents that may cause severe eye damage.

learn more about chemical

https://brainly.com/question/31476599

#SPJ11

In a lab, safety glasses protect the eyes from chemical splashes, preservative fumes from anatomy specimens, UV exposure, and burns from hot equipment.

Goggles or appropriate safety glasses in a laboratory setting can protect your eyes from a variety of hazards. These include chemical splashes when handling or mixing chemicals, fumes of preservatives used on anatomy specimens which could cause irritation or damage, and UV exposure when using UV radiation in the lab for various experiments. These glasses can also prevent injury from potential burns arising from the use of hot equipment like a hot plate or Bunsen burner.

https://brainly.com/question/33592496

Answer:

393.75mL

Explanation:

We know that

C1V1= C2V2

where C = centration, V= volume

C1= 0.45 M

V1= 175 mL = 0.175 L

C2 = 0.2M

⇒V2= C1V1/C2

⇒V2 = 0.175×0.45/0.2

=0.39375L

Therefore, amount of water needed= 393.75mL

Answer:

True,When fluorine gas is put into contact with calcium metal at high temperatures, calcium fluoride powder is created in an exothermic reaction.

Answer:

Continental Drift

Explanation:

The fossils of sea creatures could have reached the top of Mount Everest due to the continental drift theory suggested by geophysicist, Alfred Wegener. To exaggerate, a piece of evidence that supports Wegener’s hypothesis towards a continental drift is the fact that fossils of sea creatures can’t just end up in any random place like Mount Everest. He suggests that there must be something behind this and gradually it led to his well-known theory. His hypothesis towards a continental drift suggests that his second observation was that fossils of the same prehistoric species were found in different continents that were way apart. There was just no way that all the organisms could cross the oceans and reach all of these places.

(i) Liang - liang stoma lebih banyak di bahagian bawah daun berbanding di bahagian atas permukaan daun.

(ii) Struktur X berfungsi mangawal pembukaan dan penutupan liang stoma

The pH of a 0.25 M solution of NaNO2= 6.65.

Given the concentration of NaNO2, we can find the concentration of NaOH and HNO2 as follows:

NaNO2 = 0.25 MNaOH = HNO2 = x

(since they have equal concentrations due to the stoichiometry of the reaction)

Thus, we can write the equilibrium constant expression as:

Ka = x^2/0.25

Now, let's solve for x:

x^2 = 0.25 x 4.5 x 10^-4x = √(0.25 x 4.5 x 10^-4) = 0.015

This value represents the concentration of both HNO2 and NaOH. Since we are interested in pH, we need to find the concentration of H+ ions using the following equation:

Kw = [H+][OH-]

Since we have found the concentration of OH- (which is the same as the concentration of NaOH),

we can solve for H+:

Kw = 1.0 x 10^-14[H+][0.015] = 1.0 x 10^-14[H+] = 6.7 x 10^-13

Finally, we can find pH:

pH = -log[H+]pH = -log(6.7 x 10^-13)pH = 6.65

Therefore, the correct option is d) pH = 6.65.

learn more about pH here

https://brainly.com/question/172153

#SPJ11

The table has been attached below, describing if the given compounds sublime at STP.

Sublimation is a physical process in which a substance transitions directly from a solid to a gas without passing through the liquid phase. This occurs when the vapor pressure of the solid exceeds the atmospheric pressure. The opposite process, when a gas transitions directly to a solid, is called deposition. Sublimation is important in many areas of science and technology, including the purification of substances, the production of freeze-dried foods, and the creation of computer chips. It is also responsible for some unusual natural phenomena, such as the formation of snowflakes and the slow erosion of ice in cold, dry environments.

To know more about Sublimation, visit:

https://brainly.com/question/29304516

#SPJ1

Answer:

the answer is metal  hope it helps

Explanation:

The equation that illustrates the relationship between wave velocity, frequency, and wavelength is: v = λ * f

v represents the wave velocity, which is the speed at which the wave travels through a medium. It is usually measured in meters per second (m/s).

λ (lambda) represents the wavelength of the wave, which is the distance between two consecutive points of similar phase on the wave. It is usually measured in meters (m).

f represents the frequency of the wave, which is the number of complete cycles or oscillations of the wave that occur in one second. It is usually measured in hertz (Hz).

The equation v = λ * f is known as the wave equation or the wave speed equation. It states that the wave velocity is equal to the product of the wavelength and the frequency of the wave.

This equation implies that as the frequency of a wave increases, the wavelength decreases, and vice versa, while keeping the wave velocity constant. In other words, if the frequency increases, the wave becomes more compressed and the distance between consecutive points of similar phase decreases.

On the other hand, if the frequency decreases, the wave becomes more spread out, and the distance between consecutive points of similar phase increases.

For more such questions on equation visit:

https://brainly.com/question/28818351

#SPJ8

The electrostatic potential energy between an electron and a proton that are separated by 53pm is 4.27 × 10^-18 J.

The electrostatic potential energy between two charged particles can be calculated using the

formula U = k*q1*q2/r,

where:

k is the Coulomb constant,

q1 and q2 are the charges of the two particles, and

r is the distance between them.

In this case, we have q1 = -1.60*10^-19 C (charge of the electron), q2 = 1.60*10^-19 C (charge of the proton), and r = 53 pm = 5.3*10^-10 m. Plugging these values into the formula, we get:

U = (8.99*10^9 N m2/C2)*(-1.60*10^-19 C)*(1.60*10^-19 C)/(5.3*10^-10 m)

U = 4.27 × 10^-18 J

Learn more about  electrostatic potential energy here:

https://brainly.com/question/26978411

#SPJ1

Answer:

True

Explanation:

Answer:

True.

Explanation:

Silver is a good conductor of electricity because the atoms have many electrons that can be moved.

The following equation can be used to determine the equilibrium constant (Keq) for this reaction: Keq is equal to [SO3]2/[SO2][O2].

Since the concentration of SO3 in this situation is 0.250M at equilibrium, the Keq value is calculated as 0.2502 / (0.500 x 0.400) = 0.4.

Given that the Keq value is more than 1, this indicates that the reaction is marginally biassed in favour of the products.

Learn more about equilibrium at:

https://brainly.com/question/30694482

#SPJ1

To find the concentration of HCl, we need to calculate the moles of base added to neutralize the acid, the moles of acid originally in the beaker, and then use these values to determine the molarity of HCl.

a) To find the moles of base (NaOH) added, we can use the formula:

Moles of NaOH = Volume of NaOH (in L) × Molarity of NaOH

Converting the volume to liters and using the given values:

Moles of NaOH = 0.080 L × 2.5 mol/L = 0.2 mol

b) Since the reaction is a 1:1 stoichiometric ratio between NaOH and HCl, the moles of acid (HCl) will be equal to the moles of base added. Therefore, there were also 0.2 mol of HCl originally in the beaker.

c) Now, we can calculate the molarity of HCl using the formula:

Molarity (M) = Moles of solute / Volume of solution (in L)

Given that the volume of the acid is 100.0 mL (or 0.100 L) and the moles of acid is 0.2 mol:

Molarity of HCl = 0.2 mol / 0.100 L = 2.0 M

Therefore, the molarity of the HCl solution is 2.0 M.

Learn more about the molarity here: brainly.com/question/30849828

#SPJ11

The given statement "Because toluene is highly water-soluble and has a high molecular weight, it is rapidly absorbed into the liver" is False. Because, Toluene is actually not highly water-soluble, but is instead considered hydrophobic, or "water-fearing".

This is because it has a nonpolar structure and is primarily soluble in organic solvents such as benzene or chloroform, rather than water. Toluene does have a high molecular weight, which allows it to readily penetrate cell membranes and enter organs such as the liver. Once inside the liver, toluene can undergo metabolism to form various metabolites, some of which can be toxic and harmful to the liver and other organs. Toluene exposure has been associated with liver damage and dysfunction.

To know more about hydrophobic, here

brainly.com/question/16003692

#SPJ1

The entropy change is 6.051 x 10^4 J/K

Given:

mass of water = 10 kg

latent heat of boiling = 2257 kj

constant temperature = 100°c

To Find:

entropy change of 10 kg of water

Solution:

entropy change = mass*latent heat of boiling/temperature

= 10×2257×1000/(273+100) K

= 22,570,000/373K = 6.051 x 10^4 J/K

Hence, entropy change is 6.051 x 10^4 J/K

Learn more about Entropy here:

https://brainly.com/question/6364271

#SPJ4

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\ \)

From the question

mass of mineral = 14.7 g

volume = 2.2 cm³

It's density is

\(density = \frac{14.7}{2.2} \\ = 6.681818181...\)

We have the final answer as

Hope this helps you

Answer:

6.68g/cm³

Explanation:

The formula is [ d = m/v ] where m = mass and v = volume.

We are given both "m" and "v" so we can solve using those variables.

d = 14.7/2.2

d ≈ 6.68

Best of Luck!