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3 years ago

A term related to frequency that increases as frequency increases

Chemistry

2 answers:

HACTEHA [7]3 years ago

8 0

Answer: Energy.

Explanation: The energy of a wave is directly proportional to its frequency, but inversely proportional to its wavelength. In other words, the greater the energy, the larger the frequency and the shorter (smaller) the wavelength. Given the relationship between wavelength and frequency described above, it follows that short wavelengths are more energetic than long wavelengths.

zvonat [6]3 years ago

7 0

As wavelength increases so does frequency

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A piece of iron (mass = 25.00 g) at 398.0 K is placed in a styrofoam coffee cup containing 25.00 mL of water at 298.0 K. Assumin

Cloud [144]

Answer:

The final temperature of the water is 36,93°C

Explanation:

When iron comes into contact with water, it gives it heat to increase its temperature. The heat that the iron yields to match the water temperature is.

Q = m . C . ΔT

Q = 25 g . 0,4990 J/g°C (298K - 398K)

Q = 25 g . 0,4990 J/g°C - 100°C = -1247,5 J

Kelvin or Celsius is the same, because ultimately the formula only takes the result of a subtraction

This is the heat (-1247,5 J) that water wins to increase its temperature. As in iron it is a detached heat, the result was negative, however, for water it is a gained heat, that's why it is positive.

1247,5 J = 25g . 4,180 J/g°C (Tfinal - 25°C)

For units, it's more confortable to work in Celsius.

1247,5 J / (25g . 4,180 J/g°C) = Tfinal - 25°C

11,93°C = Tfinal - 25°C

11,93°C + 25°C = Tfinal = 36,93 °C

It is reasonable that the water has increased its temperature because the iron temperature was 100 degrees higher, before both substances came into contact

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3 years ago

(20 POINTS) HELP... If you add an unknown liquid to a solution that has a pH of 5, and the pH of the new mixture goes down to 3,

olasank [31]

Answer:

Explanation:

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3 years ago

Ammonia, NH3, can be made by reacting nitrogen and the equation is N2 + 3H2 --> 2NH3 How many moles of NH3 can be made if 18

alukav5142 [94]

N2 + 3 H2 -> 2 NH3
Just use their stoichiometric coefficients (number before the chemical's name) from the balanced chemical reaction to make ratios and solve for the unknown. In this case, 2 moles of NH3 are produced for every 3 moles of H2. Thus, 
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Thunderclan89

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3 years ago

Please respond guys I’ll give brainliest and 100 points

Contact [7]

Answer:

Name

Atomic Number

Atomic Symbol

Atomic Weight

Phase

Color

Classification

Group in Periodic Table

Group Name

Period in Periodic Table

Block in Periodic Table

Electronic Configuration

Melting Point

Boiling Point

Electronic Shell Structure

CAS Number

Neighborhood Elements

Lithium

6.941

Solid

Silver

alkali metal

lithium family

[He] 2s1

180.54 °C

1342 °C

2, 1

CAS7439-93-2

Neighborhood Elements of Lithium

Cesium

132.90545

Solid

Silver

alkali metal

lithium family

[Xe] 6s1

28.44 °C

671 °C

2, 8, 18, 18, 8, 1

CAS7440-46-2

Neighborhood Elements of Cesium

Explanation:

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3 years ago

Match each term in the first column with an example in the second column. On a sheet of paper, write the letter of the answer.

Andrews [41]

Answer:

wait can you go more in detail i can help you because i dont understand whats going on

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2 years ago