1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iragen [17]
3 years ago
6

1. En una actividad pedagógica, Luis organiza una dinámica con los estudiantes de Química: para ello quien menos utilice y respo

nda adecuadamente es el ganador: A Fernando le entrega 58.85gFe; a Jacqueline 23.05g Na; a Carlos 35.45g Cl y a Paola 27.0 g Al. Ellos deben indicar cuantos moles tienen en su muestra: Fernando dice tengo 63.0 mol Fe y gasto 1 minuto para responder; Jacqueline dice que tiene 4.0 mol Na y gasta 20 segundos; Carlos indica que tiene 3.45 mol Cl y gasta 15 segundos; Paola responde que tiene 270.0 mol Al y gasto 10 segundos. Quien tiene razón: *
A Fernando

b. Jacqueline

c. Paola

d. Ninguno tiene la razón
Biology
1 answer:
11111nata11111 [884]3 years ago
4 0

Respuesta:

d. Ninguno tiene la razón

Explicación:

Para convertir masa a moles, necesitamos la masa molar de cada sustancia.

Fernando (58.85 g Fe)

La masa molar de Fe es 55.85 g/mol.

58.85 g × 1 mol/55.85 g = 1.054 mol

Jacqueline (23.05 g Na)

La masa molar de Na es 22.99 g/mol.

23.05 g × 1 mol/22.99 g = 1.003 mol

Carlos (35.45 g Cl)

La masa molar de Cl es 35.45 g/mol.

35.45 g × 1 mol/35.45 g = 1.000 mol

Paola (27.0 g Al)

La masa molar de Al es 26.98 g/mol.

27.0 g × 1 mol/26.98 g = 1.00 mol

You might be interested in
If it were not for the __________, osteocytes in the outer lamellae of an osteon would not be able to transport their wastes to
lora16 [44]

Answer:

canaliculi

Explanation:

According to my research on studies by various medical professionals, I can say that based on the information provided within the question the term being mentioned is called the canaliculi. This is a small channel that link together the lacunae and whose main function is routing nutrients to osteocytes and expelling waste products.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

6 0
2 years ago
The medium of a wave is________.
fenix001 [56]
I might be wrong but I think C ( what the wave it traveling through). I think C because a wave medium is the substance that carries a wave (or disturbance) from one location to another. The wave medium is not the wave itself and it doesn’t make the wave. It just Carries or transports the wave from its source to other locations.
8 0
2 years ago
Read 2 more answers
Moisturizers for oily skin generally contain greater amounts of emollient
Xelga [282]

Answer:

False!

Explanation:

Moisturizers for oily skin generally contain smaller amounts of emollient.

6 0
3 years ago
Read 2 more answers
Through the digestion system, water is mainly absorbed in the A. gallbladder. B. stomach. C. large intestine. D. small intestine
bogdanovich [222]
I would say D. small intestine

If you want an explanation, here it is

After leaving the stomach, water is absorbed mostly in the early segments of the
small intestine, the duodenum, and the jejunum. A small portion of all water absorption occurs in the stomach and the colon: the small intestine absorbs 6.5L/day, whereas the colon absorbs 1.3L/day.
5 0
3 years ago
Read 2 more answers
Alysha wants to test the effect of different materials on the melting rate of ice. She finds the initial mass of four pieces of
Tanzania [10]

Answer:

In the experiment conducted by Alisha to test the effect of different materials on the melting rate of ice, the dependent variable is the mass of the ice, and the independent variable is the type of cover material.

Explanation:

During an investigation or experiment, the dependent variable is the one whose changes will be studied, while the independent variable is able to influence the changes of the dependent variable.

In the case where it is wanted to <u>measure how different cover materials affect the rate of ice melting</u>, the dependent variable is the mass of ice and the independent variable is the coverage material, capable of affecting the time it takes for the ice to melt.

Learn more:

Dependent and independent variables brainly.com/question/967776

8 0
3 years ago
Other questions:
  • With certain diseases, even a single case is treated as an epidemic. <br> a. True <br> b. False
    6·2 answers
  • What property of light waves explains the appearance of the pencil under water?
    11·2 answers
  • A zoologist has been studying the annual migration of a species over a period of years. He missed the annual event on two occasi
    14·2 answers
  • What does a plant's large central vacuole hold?
    7·1 answer
  • How did the Oregon system make the political process more democratic
    6·1 answer
  • In this experiment, you are looking at the effect of various germicides on microbial growth. The organism that you are using for
    15·1 answer
  • How does maintaining safe water quality, treating water,
    11·1 answer
  • What is a chromosome made of
    7·2 answers
  • How does phosphorus (in the form of phosphate) originally move through the<br> community?
    7·2 answers
  • Place the steps of the respiration process in the correct order.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!