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
Arlecino [84]
3 years ago
15

Which of the answer choices best completes the analogy?

Chemistry
1 answer:
Zolol [24]3 years ago
3 0

atomic fingerprint

Explanation:

The analogy is:

     individual : identification card              :: element : <u>atomic fingerprint</u>

An individual is represented and can easily be recognized by their respective identity cards. Most identification cards of people have their biodata which is composed of name, address, age, date of birth e.t.c. An identity card can solely be used to recognize and pick out a person.

Since the analogy seeks for a means to recognize elements, atomic fingerprints is good way;

  • Atomic fingerprint is the emission or absorption spectra of an atom.
  • It is a unique line of spectra that typifies an atom.
  • Every atom have their respective spectra different from those of others.
  • The atomic fingerprint can be used to identify an element.

learn more:

spectra lines of hydrogen brainly.com/question/1857156

#learnwithBrainly

You might be interested in
Consider the following reaction: 2 NO(g) + Br2(g) ⇄ 2 NOBr(g) Kp = 27 at 25°C What is the value of Kc at 25°C?
Paul [167]

Answer:

The value of Kc is 660 (Option E) is correct

Explanation:

Step 1: Data given

Kp = 27

Temperature = 25.0 °C

Step 2: The balanced equation

2 NO(g) + Br2(g) ⇄ 2 NOBr(g)

Step 3: Calculate Kc

Kp = Kc * (RT)^Δn

⇒ with Kp = 27

⇒ with Kc = TO BE DETERMINED

⇒ with R = the gas constant = 0.08206 L*atm/mol*K

⇒ with T = The temperature = 25 °C = 298 K

⇒ Δn = the difference in moles = -1

 

27 = Kc * (0.08206*298)^-1

Kc = 660

The value of Kc is 660 (Option E) is correct

8 0
3 years ago
What is the law of multiple proportions?
Mademuasel [1]
A I think I may be wrong
7 0
3 years ago
Energy release is to condensation as energy input is to _________.
melamori03 [73]

Answer:

sublimation

Explanation:

the other choices release energy

7 0
3 years ago
Read 2 more answers
The reaction between iron(II) oxide and carbon monoxide produces iron and carbon dioxide. How many moles of iron can be obtained
leonid [27]

The reaction between iron(II) oxide and carbon monoxide produces iron and carbon dioxide. 3.00 moles of iron can be obtained when 3.00 mol FeO  reacts with an excess of CO

<u>Explanation:</u>

During the chemical reaction, products are formed on the basis of the number of moles of reactants available, especially limiting factors. The moles from those reactants is then adapted to balanced chemical reaction factors to form products.

The balanced chemical equation is  

                1 \mathrm{FeO}+1 \mathrm{CO}>1 \mathrm{Fe}+1 \mathrm{CO}_{2}

Mole ratio of FeO : Fe is 1:1

That is mole of FeO produces 1 mole of Fe

Given, n_{Fe O}=3.00 \mathrm {moles}

So,

                   n_{F e}=n_{F e 0} \times \frac{1 \text { mole } F_{e}}{1 \text { mole } F_{e O}}

                   = 3.00 \mathrm{mol} \mathrm{FeO} \times \frac{1 \mathrm{mol} \mathrm{Fe}}{1 \mathrm{mol} \mathrm{FeO}}

                  = 3.00mol Fe is obtained.

3 0
3 years ago
A science project produces unexpected results, and the results do not support the hypothesis. A student reviews the experiment a
anyanavicka [17]

Answer:

In the university cafeteria, you set your lunch tray down at a table, grab a chair, join a group of your classmates, and hear the start of two discussions. One person says, “It’s weird how Justin Bieber has 48 million followers on Twitter.” Another says, “Disney World is packed year round.” Those two seemingly benign statements are claims, or opinions, based on everyday observation of human behaviour. Perhaps the speakers had firsthand experience, talked to experts, conducted online research, or saw news segments on TV. In response, two conversations erupt. “I don’t see why anyone would want to go to Disney World and stand in those long lines.” “Are you kidding?! Going to Disney World is one of my favourite childhood memories.” “It’s the opposite for me with Justin Bieber. Seeing people camp out outside his hotel just to get a glimpse of him; it doesn’t make sense.” “Well, you’re not a teenage girl.” “Going to a theme park is way different than trying to see a teenage heart throb.” “But both are things people do for the same reason: they’re looking for a good time.” “If you call getting crushed by a crowd of strangers fun.”

As your classmates at the lunch table discuss what they know or believe, the two topics converge. The conversation becomes a debate. Someone compares Beliebers to Beatles fans. Someone else compares Disney World to a cruise. Students take sides, agreeing or disagreeing, as the conversation veers to topics such as crowd control, mob mentality, political protests, and group dynamics. If you contributed your expanding knowledge of sociological research to this conversation, you might make statements like these: “Justin Bieber’s fans long for an escape from the boredom of real teenage life. Beliebers join together claiming they want romance, except what they really want is a safe place to explore the confusion of teenage sexual feelings.” And this: “Mickey Mouse is a larger-than-life cartoon celebrity. Disney World is a place where families go to see what it would be like to live inside a cartoon.” You finish lunch, clear away your tray, and hurry to your next class. But you are thinking of Justin Bieber and Disney World. You have a new perspective on human behaviour and a list of questions that you want answered. That is the purpose of sociological research—to investigate and provide insights into how human societies function.

7 0
3 years ago
Other questions:
  • I need help on number 3. Thanks
    9·2 answers
  • A 420 mL sample of a 0.100 M formate buffer, pH 3.75, is treated with 7 mL of 1.00 M KOH. What is the pH following this addition
    14·1 answer
  • Water is super soluble and this solubility is incredibly helpful for life. Tell me how this solubility helps maintain different
    11·1 answer
  • The exact position of the electrons of an atom cannot be determined because they are in constant ___
    12·1 answer
  • Animal and plant organs are organized into organ stystems much like organize your homework in
    8·1 answer
  • (06.06 MC)
    8·2 answers
  • What is the wavelength of a photon with a frequency of 6.56 x 10^14 Hz?
    6·1 answer
  • If you have 8.0 x 1025 molecules of water, how many moles is this?
    12·1 answer
  • ANSWER CORRECTLY FOR BRAINLEIST! :)
    15·2 answers
  • Which list of formulas represents only compounds? H2, N2, O2 H2, Ne, NaCl CO2, H2O, NH3 MgO, NaCl, O2
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!