What is the type of structure indicated below?
a- ionic structure
b-resonance structure
c- molecular structure
d-electron dot structure

Answers

Answer 1

Answer:

Electron dot structure

Explanation:

This is because electron dot structure is the structure that shows or indicate valence electrons of an atom and dots

is use around the element symbols . The number of dots shows the total number of valence electrons that are present in the atom of the molecules.

Related Questions

Which is NOT an application of chemistry to life? *

a. Fertilizers used by farmers

b. Soaps used to clean

c. Medicine used by doctors

d. Hammer used by construction worker

Answers

I’m pretty sure it’s D

science:my chosen place is bonifacio global city
i choose this place because?

Answers

Answer:

Rewrite the following sentence in reported speech

The chair person said,"A hearty welcome to all present!"

Helllpppppppppppppppppppp

Answers

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on eight comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.!

Explanation:

21.82 L of 4.65 M HCl is added to 9.31 L of 8.55 M NaOH. What is the concentration of HCl in the resulting solution? **hint: make ICE table

A)1.90 M

B)0.952 M

C)10.3 M

D)0.702 M

E)0.644 M

Answers

Answer:

Explanation:

First you multiply 4.65 with 21.82 to get the mols of hcl, which is 101.463. Then you make an ice table. The ice table should look like this:

HCl + NaOH = 12NaCl + H2O

101.463 6.022e23 1.989e30

As the ice table above shows, you will have 1.989e30 mols of nacl after the reaction. With that information, you can then divide it by 2.833333333333333e30 to get 0.702 M.

i need help i have a homework assignment to finish and this is the last question help please and thank u

Answers

A
i just searched it up and wanted to help

10 moles of potassium hydroxide in 5.16 L of solution

Answers

Answer:

The molarity is 8.52M

Explanation:

molality = moles of solute/kg of solvent = 5.2mol/kg

moles of solute = 5.2mole

mass of solute = moles of solute × MW = 5.2 × 56.106 = 291.8g

mass of solvent = 1kg = 1000g

Mass of solution = mass of solute + mass of solvent = 291.8g + 1000g = 1291.8g

Density of KOH = 2120g/L

Volume of solution = mass/density = 1291.8/2120 = 0.61L

Molarity = number of moles of solute/volume of solution = 5.2/0.61 = 8.52M

The concentration in the solution is 1.94 mol/L

From the question,

We are to determine the concentration of 10 moles of potassium hydroxide in 5.16 L of solution.

From the formula

Number of moles = Concentration × Volume

Then, we can write that

[tex]Concentration = \frac{Number\ of\ moles}{Volume}[/tex]

From the question,

Number of moles of potassium hydroxide (KOH) = 10 moles

Volume of solution = 5.16 L

∴ Concentration of the solution = [tex]\frac{10}{5.16}[/tex]

Concentration of the solution = 1.94 mol/L

Hence, the concentration in the solution is 1.94 mol/L

Learn more here: https://brainly.com/question/19196652

Here is the complete question:

Calculate the concentration in each of the following solutions:

1. 10 moles of potassium hydroxide in 5.16 L of solution

transmutation occurs during which type of radioactive decay

Answers

Explanation:

Transmutation, conversion of one chemical element into another. A transmutation entails a change in the structure of atomic nuclei and hence may be induced by a nuclear reaction (q.v.), such as neutron capture, or occur spontaneously by radioactive decay, such as alpha decay and beta decay (qq. v.).

A transmutation entails a change in the structure of atomic nuclei and hence may be induced by a nuclear reaction (q.v.), such as neutron capture, or occur spontaneously by radioactive decay, such as alpha decay and beta decay

NH₄⁺(aq)+NO₃⁻(aq) → NH₄NO₃(s)
How much energy is released when 3 moles of NH₄+ react?

1) -25.69 kJ
2) -51.38 kJ
3) -77.07 kJ
4) -102.76 kJ

Answers

I think the answer is number 3

Para solucionar el ejercicio primero se debe conocer el número atómico de los elementos para determinar cuantos electrones tiene cada uno N: número atómico 7, tiene 7 electrones Nivel 1: 2 electrones Nivel 2: 5 electrones P: número atómico 15, tiene 15 electrones Nivel 1: 2 electrones Nivel 2: 8 electrones Nivel 3: 5 electrones Cl: número atómico 17, tiene 17 electrones

Answers

Answer:

El número atómico se refiere al número de protones o electrones de un átomo.

Explicación:

El número atómico se refiere a la cantidad de protones o la cantidad de electrones que giran alrededor de las capas u órbita de un átomo, por lo que el número atómico 7 representa que el átomo tiene 7 electrones o protones mientras que, por otro lado, el número atómico 17 muestra el número de electrones o protón. Solo hay dos electrones que entran en la primera órbita y en el resto de las capas tiene espacio para 8 electrones por lo que los átomos pierden o agregan electrones en su capa más externa para obtener estabilidad.

For a solution, [H+] = 1 x 10-2M.
What is the pH?

Answers

Answer:

pH=2

Explanation:

-log(1 x 10-2)=2

Please help!!
The diagram shows the electron configuration of an atom of an element for the electrons in the s and p orbitals.
What is the group number of the element in the periodic table?

A) 1
B) 2
C) 13
D) 15

Answers

Answer:

Explanation:

because since the outer shell has 5 electron then add 5 and 10 to get 15

If 190dm of hydrogen gas collected at 20°c and 760mmHg .Calculate it's volume at stp (standard pressure=760mmHg

Answers

Answer:

177.1 L

Explanation:

The excersise can be solved, by the Ideal Gases Law.

P . V = n . R . T

In first step we need to determine the moles of gas:

We convert T° from, C° to K → 20°C + 273 = 293K

We convert P from mmHg to atm → 760 mmHg = 1atm

1Dm³ = 1L → 190L

We replace: 190 L . 1 atm = n . 0.082 . 293K

(190L.atm) / 0.082 . 293K = 7.91 moles.

We replace equation at STP conditions (1 atm and 273K)

V = (n . R .T) / P

V = (7.91 mol . 0.082 . 273K) / 1atm = 177.1 L

We can also make a rule of three:

At STP conditions 1 mol of gas occupies 22.4L

Then, 7.91 moles will be contained at (7.91 . 22.4) /1 = 177.1L

is copper an elementary substance or a compound?

Answers

Elementary substance

Please help me classify properly.

Answers

Answer:C

Explanation:

Homogeneous Mixture

Answer:

homogeneous mixture

Explanation:

it is the same throughout so therefore it can be separated

Find the final product for: Li + Br and show work.

Answers

Lithium is atomic number 3, so it has valency 1

While, Bromine is atomic number 35, and has valency 1

Lithium has an extra electron while Bromine need an electron, since they both need and have one electron, the form

LiBr (Lithium Bromide) where Li is +ve charged and Br is -ve charged

Happy to help :)

What is one way that the kidneys help maintain homeostasis in the body?
A They regulate the temperature of the body
B They regulate the distribution of energy in the body
C They regulate the amount of oxygen in the body
D They regulate the amount of water in the body

Answers

Answer:

they regulate the amount of water in the body.

Explanation:

The kidneys help maintain homeostasis by regulating the concentration and volume of body fluids. For example, the amount of H+ and HCO3 - secreted by the kidneys controls the body's pH.

A solution's hydrogen ion concentration is 1 x 10-SM.
What is the pH?

Answers

Answer:

the Ph is

Explanation:

90rn hub

Which set of elements represents a period within the Periodic Table?

H, He, Ar , Xe , Rn ,

N, P, As, Sb , Bi

K, V, Fe, Ga , Kr

La, Pa, Sm, Tb, Yb

Answers

Which set of elements represents a period within the Periodic Table?

H, He, Ar , Xe , Rn ,

N, P, As, Sb , Bi

K, V, Fe, Ga , Kr

La, Pa, Sm, Tb, Yb Which set of elements represents a period within the Periodic Table?

H, He, Ar , Xe , Rn ,

N, P, As, Sb , Bi

K, V, Fe, Ga , Kr

La, Pa, Sm, Tb, Yb

What processes contribute water to surface water sources?(science)

Answers

Of the many processes involved in the water cycle, the most important are evaporation, transpiration, condensation, precipitation, and runoff. Although the total amount of water within the cycle remains essentially constant, its distribution among the various processes is continually changing.

A sample of an unknown liquid has a volume of 12.0 mL and a mass of 6 g. What is its density?

A. 2 g/cm3
B. 0.5 g/cm
C. 5.0 g/cm3
D. 0.2 g/cm3

Answers

[tex]\large \mathfrak{Solution : }[/tex]

volume = 12 ml = 0.012 litres = 0.012 cm³

mass = 6 g

And the relationship between mass, volume and density can be depicted by :

[tex] \boxed{density = \dfrac{mass}{volume} }[/tex]

[tex]density = \dfrac{6}{0.012} [/tex]

[tex]density = \dfrac{6000}{12} [/tex]

[tex]density = 500 \: \: g/cm {}^{3} [/tex]

therefore, density = 500 g/cm³

Which type of stoichiometry problems does not require the use of molar mass?

Answers

Answer:

Explanation:

It is volume-volume problems that does not require the use of molar mass.

A solute can be obtained from a solution by...

Answers

Answer:

Evaporating the solvent

Explanation:

The thermal energy of matter increases when ___.

A. Heat flows of the matter
B. The mass of the matter decreases
C. Heat flows into the matter
D. The temperature decreases

Answers

A. heat flows of the matter is what i would put

What are the chemical reactions involved in CO2 emission?

Answers

In co2 there’s combustion because it comes from burning fossil fuels

Your friend sits on a 25.0L exercise ball, squishing the ball so that it is only 17.5L. What is the pressure inside the ball if the outside air pressure is 100. kPa?

Use the Boyle's Law equation to determine the answer.

Answers

Answer:

Explanation: because i took the test and got a 100

An element A has an atomic number of 11 and another element B has an atomic number 17 (A
and B are not actual chemical symbols of elements)
i. What group on the periodic table does A belong?
ii. What type of bond will be formed between A and B? Explain.
(2mks
(1ml
iii.
Write the formula of the compound that will be formed between A and B.
(lm
b. Arrange the species X, X5+ and X. in order of increasing size.

Answers

Answer:

can anyone tell me how to get +7!67:$'!$

5 Protons {+}
5 Electrons {-}
6 Neutrons {0}
What element is this ?

Answers

Answer:boron

Explanation:

What is a dominant trait and a recessive trait

Answers

Answer:

Dominant traits are always expressed when the connected allele is dominant, even if only one copy exists. Recessive traits are expressed only if both the connected alleles are recessive.

Explanation:

Freckles, cleft chin and dimples are all examples of a dominant trait.

Examples are freckles

Help plzzZZZZ I really need help with this

Answers

The link above is fake, they’re tricking you. But the caption would be something like this depending where you are In the learning point. The Caterpillar over time makes a cocoon for itself using its spit and over time they start to transform into a butterfly in their cocoon and when they’re ready, they eat their way through the cocoon. Hope it helps

What is represented by this notation?

Na loses one proton to Cl.
Na loses one electron to Cl.
Na gains two protons from Cl.
Na gains one electron from Cl.

Answers

Answer:

it's the third

Explanation:

I need to fill 20 spaces. don't mind that

Answer:

Na gains two protons from Cl.

Explanation:

this should help

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What is the type of structure indicated below? a- ionic structure b-resonance structure c- molecular structure d-electron dot structure

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What is the type of structure indicated below?
a- ionic structure
b-resonance structure
c- molecular structure
d-electron dot structure