CHEMISTRY HIGH SCHOOL

The questions refer to the following graphs of mechanical waves. A
B
C

The wave with the longest wavelength is (A,B,C). The wave with the smallest amplitude is (A,B,C). The wave with the most energy is (A,B,C).

Answers

Answer 1
Answer:

A is the wave with the longest wavelength. The graph clearly shows this since wave A has a larger wavelength than waves B and C. Wave A has the longest wavelength when compared to the other two waves.

What is the C wave ?

C is the wave with the least amplitude. The graph shows this since wave C has a significantly lesser amplitude than waves A and B. Wave C has the least amplitude when compared to the other two waves. B is the most energetic wave.

The graph shows this because wave B has a larger amplitude than waves A and C. Wave B has the greatest amplitude when compared to the other two has the more energy in comparison to the two.

The longest wavelength wave has the lowest frequency and the lowest energy. A wave's wavelength is inversely related to its frequency, which implies that as the wavelength grows, so does the frequency. Because energy is proportional to frequency, the wave with the longest wavelength has the least energy.

The wave with the smallest amplitude has the least amount of energy. The largest displacement of a wave from its equilibrium position is referred to as its amplitude. The energy of a wave is exactly proportional to its amplitude, therefore as the amplitude falls, so does the energy.

Learn more about displacement   at:

brainly.com/question/11934397

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Answer 2
Answer: Do you have pictures of the graphs??

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The atomic masses in the Periodic Table are not integral numbers. For example, carbon is listed as 12.011 amu instead of 12.000 amu. Why?

Answers

The reason that the atomic masses shown on the periodic table include fractions, is to account for the other isotopes of the element, not just the pure element. Remember, an isotope is a atom of an element with a reduced or increased number of neutrons. This changes the atomic mass but not the charge. The number is calculated by multiplying the atomic mass of each isotope of the element with its percent abundance found in nature. Therefore it is an averaged atomic mass for all of the element. For example, carbon-12 may (I don't know the real numbers) have a % abundance of 98.5%, and carbon-14 may have a percent abundance of 1.5%, so that is why carbon would have an atomic mass greater than 12.000.

What volume of carbon dioxide is produced when 0.489 mol of calcium carbonate reacts completely according to the following reaction at 0°C and 1 atm? calcium carbonate ( s ) calcium oxide ( s ) + carbon dioxide ( g )

Answers

Answer:

11.0L of carbon dioxide is produced

Explanation:

Balanced equation: CaCO_(3)(s)\rightarrow CaO(s)+CO_(2)(g)

According to balanced equation, 1 mol of CaCO_(3) produces 1 mol of CO_(2)

So, 0.489 mol of CaCO_(3) produces 0.489 mol of CO_(2)

Let's assume CO_(2) behaves ideally.

So, P_{CO_(2)}V_{CO_(2)}=n_{CO_(2)}RT

where P is pressure, V is volume , n is number of moles, R is gas constant and T is temperature in kelvin

Plug-in all the values in the above equation-

(1atm)* V_{CO_(2)}=(0.489mol)* (0.0821L.atm.mol^(-1).K^(-1))* (273K)

or, V_{CO_(2)}=11.0L

So, 11.0L of carbon dioxide is produced

Insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. A bottle contains 525 mL of insulin at a concentration of 50.0 mg/mL . What is the total mass of insulin in the bottle?

Answers

26.25 ? I am not sure about my answer ;;-;; 

Please answer. Brainliest!

Answers

Answer:

The equation is balanced.

Explanation:

The number of P atoms in the reactant side is 4 and the number of P atoms in the product side is also 4.

The number of O atoms in the reactant side is 16 and the number of O atoms in the product side is also 16.

The number of H atoms in the reactant side is 12 and the number of H atoms in the product side is also 12.

These results are in accordance with the law of conservation of mass.

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Gastric juice in the stomach contains pepsin and sulfuric acid.


TrueFalse

Answers

False, pepsin and hydrochloric acid

Answer:

False

Explanation:

it contains pepsin and hydrochloric acid

To calculate the amount of heat absorbed as a substance melts, which of the following information is NOT needed?a.
the mass of the substance
c.
the change in temperature
b.
the specific heat of the substance
d.
the density of the sample

Answers

To calculate the amount of heat absorbed as a substance melts, the information which we don't need is density.

What is the formula to calculate absorbed heat?

The formula which we used to calculate the amount of involved heat in a chemical reaction is:

Q = mcΔT, where

  • Q = absorbed heat
  • m = mass
  • c = specific heat
  • ΔT = change in temperature

Hence the information which we don't need is density.

To know more about heat absorbed, visit the below link:
brainly.com/question/8828503

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The answer is d. hope it helps!
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