Chemistry High School

Si el elemento "X" tiene 8 protones y el elemento "Y" tiene 11 protones, al reaccionar ¿Qué tipo de enlace pueden formar? Seleccione una: a. Metálico. b. Covalente puro. c. Covalente polar. d. Iónico.

Answers

Answer 1

Answer:

D; Iónico

Explanation:

El elemento con 8 protones es oxígeno, mientras que el elemento con 11 protones es sodio.

El sodio es un metal alcalinotérreo, mientras que el oxígeno no es un metal.

En general, cuando tenemos un elemento metálico como el sodio, que se une con uno no metálico como el oxígeno, el tipo de enlace formado como resultado de la transferencia completa de electrones desde la capa de valencia del sodio a la capa de valencia del oxígeno para completar su propia configuración de octeto se denomina enlace electrovalente o, más generalmente, enlace iónico

Related Questions

------------neutral particles in an atom​

Answers

Answer:

neutrons :

Explanation:

Protons are positively charged, while electrons are negatively charged. Neutrons are electrically neutral, as the name suggests. The electric charge, noted Q , is a physical quantity.

A sample of O2 gas is collected over water at 25oC at a barometric pressure of 751 torr. The vapor pressure of water at 25oC is 23.8 torr. What is the partial pressure of the O2 gas in the sample

Answers

Answer:

727.7 torr

Explanation:

Since the gas was collected over water, it is likely to be saturated with water vapour and the total pressure is given as;

Ptotal = Pgas + Pwater

From the question;

Ptotal = 751 torr

Pgas = ?

Pwater = 23.8 torr

Making Pgas subject of equation, we have;

Pgas = Ptotal - Pwater

Pgas = 751 torr - 23.8 torr

Pgas = 727.7 torr

List four examples of diffusion seen in daily life.

Answers

Answer:

Spraying perfume in one corner of the room and the smell travels to the other side of the room

Explanation:

what happens when ca no3 2 is heating it gives CaO ,NO2 and 02

Answers

Answer:

balanced equation:

2Ca(NO3)2 (aq)-----> 2CaO (s) + 4NO2 (g) + O2 (g)

So heating 2 moles of Ca(NO3)2 gives 2 moles of CaO, 4 moles of NO2 and 1 mole of O2. This is a heat decomposition reaction. It gives a white precipitate (CaO), and brown pungent gas (NO2).

Answer:

The balanced equation of the reaction is below.

Explanation:

2Ca(NO3)2 -----> 2CaO + 4NO2 + O2.

how many sigma and pi bonds in propionic bond

Answers

Propanoic acid formula is ch ch 2 so it has 8 bonds

Explain this
When a small piece of glowing sodium is placed inside a gas jar filled with chlorine gas, the sodium continues to burn brightly but when the gas is replaced by argon gas, the glowing sodium becomes extinguished. ​

Answers

Answer:

Because Argon is a inert gas

Explanation:

Inert gases don't take place in any experiments

Answer:

Below.

Explanation:

The sodium reacts strongly with the chlorine to form NaCl and the heat of reaction continues the brightness, whereas it does not react with the inert gas  argon and soon cools down.

What is the precipitate in the following reaction?
2AgNO3(aq) + Na2S(aq) → Ag2S(s) + 2NaNO3(aq)

Answers

Answer:

2Ag(+1)(aq) + S(-2)(aq) --> Ag2(+1)S(-2)(aq)

Explanation:

The final equation is

2Ag(+1)(aq) + S(-2)(aq) --> Ag2(+1)S(-2)(aq)

2Ag(+1)NO3(-1)(aq) + Na2(+1)S(-2)(aq) --> Ag2(+1)S(-2)(s) + 2Na(+1)NO3(-1)(aq)

AgNO3, Na2S, and NaNO3 are all strong electrolytes, so we immediately separate those, making the new equation:

2Ag(+1)(aq) + 2NO3(-1)(aq) + 2Na(+1)(aq) + S(-2)(aq) --> Ag2(+1)S(-2)(s) + 2Na(+1)(aq) + 2NO3(-1)(aq)

After that, you cancel out all the ions that appear more than once, which in this case would leave us with a final equation of...

2Ag(+1)(aq) + S(-2)(aq) --> Ag2(+1)S(-2)(aq)

Answer:

Explanation:

C

calculate the mass of sodium sulphate required to prepare its 20%of solution in 100 g ofwater​

Answers

Answer:

25 g

Explanation:

Mass percent implies the mass of solute dissolved in a solution

Mass percent = mass of solute/mass of solute + mass of solvent × 100/1

Since mass percent concentration= 20%

Mass of solvent = 100g

Let mass of solute = x

Hence;

20 = x/x +100 ×100/1

20/100= x/x + 100

0.2 = x/x + 100

0.2(x + 100) = x

0.2x + 20 = x

20 = x - 0.2x

20 = 0.8x

x= 20/0.8

x= 25 g

Other Questions
Health and Wealth Company is financed entirely by common stock that is priced to offer a 12 percent expected return. If the company repurchases 20 percent of the common stock and substitutes an equal value of debt yielding 8 percent, what is the expected return on the common stock after refinancing A diode has IS = 1017 A and n = 1.05. (a) What is the diode voltage if the diode current is 70 A? (b) What is the diode current for VD = 0.1 mV? A reaction mixture at 175 K initially contains 522 torr of NO and 421 torr of O2. At equilibrium, the total pressure in the reaction mixture is 748 torr. Calculate Kp at this temperature. Express your answer to three significant figures. Using the periodic table provided, identify the atomic mass of sodium (Na) . Your answer should have 5 significant figures. Provide your answer below: __ amu How did World War I relate to the art movements of Dadaism and Surrealism?O A. Dadaists and Surrealists embraced silliness and the subconsciousand rejected the reason and rationalism they felt had led to warand mass destruction,O B. Dadaists and Surrealists used broken and reassembled shapes toexpress their frustrations with the social instability caused byWorld War I.O C. Dadaists and Surrealists expressed antiwar sentiment by usinglifelike imagery in order to portray the horror and chaos of war asrealistically as possible.O D. Dadaists and Surrealists captured the meanings of the feelingsand emotions revealed by war as opposed to focusing on thephysical events of World War I. Claire and Elena are going on a road trip with their families. They plan to meet at Elena's house and then follow each other. Claire meets Elena at her house at 10 a.m. Elena is held up by chores and has to leave late, but Claire continues on. The total distance traveled by Claire and Elena is represented on the graphs below. Compare the two graphs and choose the correct answer. A. The distance covered by Claire prior to 10 a.m. was 120 miles more than the distance covered by Elena prior to 10 a.m. After leaving Elena's house, Claire was on the road two hours more than Elena. B. The distance covered by Claire prior to 10 a.m. was 60 miles more than the distance covered by Elena prior to 10 a.m. After leaving Elena's house, Elena was on the road one hour more than Claire. C. The distance covered by Claire prior to 10 a.m. was 120 miles more than the distance covered by Elena prior to 10 a.m. After leaving Elena's house, Elena was on the road two hours more than Claire. D. The distance covered by Claire prior to 10 a.m. was 60 miles more than the distance covered by Elena prior to 10 a.m. After leaving Elena's house, Claire was on the road one hour more than Elena. Identify any outlier(s) in the data. {52, 61, 42, 46, 50, 51, 49, 44, 40, 66, 53, 67, 45, 64, 60, 69} IMPORTANT! ANSWER QUESTION NOW. Will award brainliest. Find the value of x. Give reasons to justify your solution. Who was the Djembe played for in the empire? The Moving to Opportunity study found that those in the group who received assistance in relocating and life-skills training in addition to housing vouchers:_________.a. experienced hostility from their new neighborhoods.b. were not testable because many participants could not be found later.c .were no different than those in the control group.d. experienced less stress and better health. According to NASAA's Statement of Policy on Unethical or Dishonest Business Practices of Broker-Dealers and Agents, all of the following practices are considered unethical for an agent EXCEPT A) selling 3,000 shares of ABC as directed by a client at a price that the agent determines, without oral or written discretionary authority B) selling 3,000 shares of ABC at a price the agent determines is the best the client can get, without oral or written discretionary authority C) determining the quantity of a specific security to purchase once the client has designated that security and the action to be taken D) receiving written discretionary authority from a client within 10 business days of first executing a discretionary trade with oral authority from the client Action Travel has 10 employees each working 40 hours per week and earning $20 an hour. Federal income taxes are withheld at 15% and state income taxes at 6%. FICA taxes are 7.65% and unemployment taxes are 3.8% of the first $7,000 earned per employee. What is the actual direct deposit of payroll for the first week of January The likelihood of a risk event occurring during the implementation of a project goes up as the project progresses. The cost impact of these risk events also goes up as the project progresses.a. Trueb. False The line passing through points(4,0) and (-2, 1) has a slope of?A. -6B. -1/6C. 1/2D. 2E. 1/6 1) In rectangle ABCD, AE is perpendicular on diagonal BD, BE=3DE and ACBD={O}.1. DE/EO=?2. If BD=82 inches, find out the lenght of AE3. Calculate the measure of angle AOD.2) In rectangle MNPQ, MANQ, ANQ, MAPQ={B}. If AN measures 12 inches, AQ=27 inches, calculate the lenght of MA and MB.Please help me with these. Or at least with one of them. Describe a theme from Letter 3 of Frankenstein by Mary Shelley and a different theme from Letter 4 of Frankenstein. How are these themes conveyed in each letter? Provide evidence from the text to support the themes expressed in each letter. Which is an example of an idiosyncratic reaction? a. Nausea after taking an antibiotic agent b. Excitement and agitation after taking a sedative c. Increased clotting time after taking heparin d. Sedation after taking a sleeping pill Find the slope of the line that contains (6, 2) and (6,-3).Find the slope of the line through the points (-4,-7) and (4, 3). Krista was assigned a homework problem that stated there were 45 stamps purchased for $18.75. Some stamps were 40 cents, and some stamps were 55 cents. To solve this problem, she wrote the system of equations that is shown below. 0.40 x + y = 45. x + 0.55 y = 18.75. Which explains the error that Krista made? Krista put 0.40 in the first equation meant for the number of stamps. Krista put 0.55 in the second equation meant for the value of stamps. Krista did not use the correct decimal to represent the total cost of the stamps. Krista mistakenly put 45 in the first equation when it should have been in the second equation. A casino offers a game wherein a player can roll one six sided die. If the player rolls a 1or 2, theywin. If the player rolls a 3, 4, 5, or 6, they lose. If a player bets $2.00 and wins, they will be paid outan additional $3.00. If they lose, they lose their initial $2.00. Find the expected value of the $2.00bet.Enter your answer rounded to the nearest cent and don't forget, expected values can be negative!