Look at the diagram of a fuel cell below.
Which parts of the fuel cell do A and B represent?
A. air
B. anode and cathode
C. electrolyte
D. hydrogen and nitrogen

Answer:

i guess

Explanation:

we will never know

Answer:

Explanation:

Purpose of Case Control Studies

To determine whether or not an association exists between a disease and a particular risk factor. To start with a group of people with disease and work back to see whether a possible risk factor may be the cause. It may be the first step in testing a hypothesis.

Answer:

Not exactly But you can take the slope of the curved portion and the slope of the flatline.

It wont do you much good since your working for absorbance but if you ever see something like a temperature change you can use the slope(s) to find freezing points/melting

Explanation:

If you need to submit a slope you could use a best fit which is just point to point or you could break it up like i mentioned

Answer:

12.33

Explanation:

92.5/7.5= 12.33

30g of the sterling silver ring contains, 27.75 g of silver and 2.25 g of copper.

Cross multiply fractions by multiplying one fraction's denominator by the other fraction's numerator and then comparing the two values. The larger fraction is the one with the higher value.

Therefore,

( cross multiplication),

100 × X = 92.5 × 30

X = 92.5 × 30/ 100

100g sterling silver = 7.5g copper

30g sterling silver= Y g copper

(cross multiply)

100 × Y =  7.5 × 30

Y= 7.5 × 30 / 100

therefore, 30g of sterling silver ring contains, 27.75 g of silver and 2.25 g of copper.

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Answer:

1) food molecules enter receptors .....

2) The sensory receptors sends the message....

3) The message reaches the brain

4) the brain procces the information it recieved...

5) The brain stores the info  ...

6) The brain retrieves the info . ....

(I hope its clear ! I hope its right too ;) )

Answer:

Mean: 350

Median: 300

Range: 650

Mode: 300

Explanation:

Mean: 800+300+150+300+200= 1750, 1750 divided by 5 = 350

You add up all the numbers then you divide it by the TOTAL NUMBER of NUMBERS to find the mean.

Median: (150, 200, 300, 300, 800)

To find Median put the numbers in order from greatest to least then you choose the middle number.

Range: Range is the distance from the smallest number to the largest the way to solve this is (Highest number) - (lowest number). In your case its 800-150 which equals 650

Mode: The mode is the value that appears most frequently in a data set.

Brainliest?

Answer:

........................

Answer:c

Explanation: A molecule is two atoms bonded together

I have understood that the meaning of life is to have a vision and live a purposeful life.

Living a meaningful life is concerned about the essence of waking up everyday and having something meaningful that you're doing or engaging yourself into what you have vision about.

Life is good and lively when you have a vision, this vision is drive by a passion for a particular thing. When you're visionary, you will be happy every day and it is visionaries that change the world positively.

Over an extended period of time, this vision will be brought into life where people can benefit from it. Here, is where purpose comes in.

When you're able to impact positively into another people's life and make their life easier, you're living a purposeful life.

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Answer:

A

Explanation:

Answer:

160.000 años corresponde a 16.000 décadas.

Explanation:

Para resolver correctamente el ejercicio debemos plantear la regla de tres simple de la siguiente manera:

1 década equivale a 10 años; A cuantas decadas equivalen 160.000 años?

1 década→10 años

          x    ←160.000 años

Debemos multiplicar 160.000 por 1 y luego dividir entre 10 ;

x=([tex]\frac{160.000x1}{10}[/tex])=16.000 décadas; en notación científica sería 16x10^3.

Respuesta: 160.000 años corresponde a 16.000 décadas.

Answer:

C. It would stay the same

Explanation:

PLATO answer

These are reactions that transfer energy to the surroundings (ie the energy exits from the reaction, hence the name exothermic). The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become hotter. A thermometer is used to detect the temperature increase.

Examples:

Combustion

Neutralisation between acids and alkali

These are reactions that take in energy from the surroundings (ie energy enters the reaction, which will help you to remember the name endothermic). The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become colder. A thermometer is used to detect the temperature decrease.

Example:

Electrolysis

Answer:

1.28 mol NaCl

Explanation:

Find the mass of NaCl by adding the two elements atomic mass

Na: 22.99

Cl: 35.45

22.99+35.45=58.44 g

Now convert to moles

74.8 g / 58.44 g = 1.27994524298 mol

Answer:

5) donating H to a solution when they have been depleted and accepting H when they are in excess.

Explanation:

A buffer solution is a solution that undergoes a negligible change in pH in addition of moderate quantities of acid or alkali. In other words, a buffer solution is one that resists a change in pH on addition or dilution of small amounts of acids or alkalis.

So, from the given question:

Buffers are substances that help resist shifts in pH by donating H to a solution when they have been depleted and accepting H when they are in excess.

Answer:

Filtration

Explanation:

Filtration is a physical separation technique that is used to separate solids from liquids or gases. The process involves the use of a filter which allows just the liquid to pass through.

In this case, the coffee beans is the solid and the boiling water is the liquid. The special piece of paper is the medium (filter) through which the coffee is collected.

The coffee coming through the special piece of paper (filter) is called a filtrate.

Filtration is used in the preparation of the cup of coffee.

Answer:

D

Explanation:

Explanation:

your answer willing be 8.7

Answer:

https://quizizz.com/admin/quiz/5902a3fd8d05b2100088880a/cat-1-chemistry-review

Explanation:

Answer:

atomic? hope this helps!

Explanation:

Answer:

Here is the answer ⬆️⬆️⬆️⬆️⬆️

Answer:

becuase of the sun

in different places some places would be cold

Answer:

False.

Explanation:

I majored in Chemistry

Answer:

Ionic bonding is the attraction between positively- and negatively-charged ions. These oppositely charged ions attract each other to form ionic networks (or lattices). Electrostatics explains why this happens: opposite charges attract and like charges repel.

Explanation:

Ionic compounds form because opposite charges attract.

In an ionic compound, positive and negative ions come together to form a stable structure. This occurs when an atom loses electrons to become a positively charged ion (cation) and another atom gains those electrons to become a negatively charged ion (anion). The positive and negative charges of the ions attract each other, resulting in the formation of an ionic bond.

This attraction between positive and negative charges is what holds ionic compounds together. The strong electrostatic forces of attraction between ions result in a lattice structure, where each ion is surrounded by oppositely charged ions.

Thus, ionic compounds are formed because opposite charges attract.

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