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Vinvika [58]
3 years ago
8

What is sound energy?

Chemistry
2 answers:
klio [65]3 years ago
6 0

Answer:

Sound is a type of energy made by vibrations.

Explanation:

When any object vibrates, it causes movement in the air particles. These particles bump into the particles close to them, which makes them vibrate too causing them to bump into more air particles. This movement, called sound waves, keeps going until they run out of energy.

Delicious77 [7]3 years ago
3 0

Answer:

It is

Explanation:

The reason is because it is giving out waves of sound to create music making energy.

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Too much ___________ can slow and eventually stop the heart, and supplements should be taken only under the care of a physician.
Marina86 [1]
<span>Too much B. potassium can slow and eventually stop the heart, and supplements should be taken only under the care of a physician. </span>
6 0
3 years ago
13. The type of chemical bond that forms between oppositely charged ions is aln) a. covalent bond.
Georgia [21]

Answer:

IONIC BOND

Explanation:

the force between oppositely charged IONS is and IONIC BOND

6 0
3 years ago
Classify the possible combinations of signs for a reaction's ΔH and ΔS values by the resulting spontaneityA. ΔH is positive and
sergejj [24]

Explanation:

1. Spontaneous as written at all temperatures

C. When ΔH is negative and ΔS is positive, the sign of ΔG will always be negative, and the reaction will be spontaneous at all temperatures.

2. Spontaneous in reverse at all temperatures

A. When ΔH is positive and ΔS is negative, the sign of ΔG will always be positive, and the reaction can never be spontaneous.

3. Spontaneous as written above a certain temperature

B. ΔH is positive and ΔS is positive - an endothermic reaction (positive ΔH) that also displays an increase in entropy (positive ΔS). It is the entropy term that favors the reaction. Therefore, as the temperature increases, the TΔS term in the Gibbs free energy equation will begin to predominate and ΔG will become negative.

4. Spontaneous as written below a certain temperature

D. ΔH negative and ΔS is negative -  When the reaction is exothermic (negative ΔH) but undergoes a decrease in entropy (negative ΔS), it is the enthalpy term which favors the reaction. In this case, a spontaneous reaction is dependent upon the TΔS term being small relative to the ΔH term, so that ΔG is negative. The freezing of water is an example of this type of process. It is spontaneous only at a relatively low temperature.

3 0
3 years ago
can anyone help me in explaining the metal excess defect in Non stoichiometric defects? i fail to understand it
mars1129 [50]
<span>Non-stoichiometric defects are </span>compounds which contain the combining elements in a ratio different from that required by their stoichiometric formula. The solids with metal excess <span>defect </span>contain metal in excess to the stoichiometric ratio. Such defect is caused due to either of the following reasons:
1. <span>Metal excess Defect due to Anionic Vacancies:
     In this, </span>negative ions may be missing from their lattice sites leaving holes in which the electrons remain entrapped to maintain the electrical neutrality.
2. Metal excess defect due to the presence of extra cations at interstitial sites:
     In this case, there are extra positive ions occupying interstitial sites and the electrons in another interstitial sites to maintain electrical neutrality. The defect may be visualized as the loss of non-metal atoms which leave their electrons behind. The excess metal ions occupy interstitial positions.
8 0
3 years ago
3. Simge's guinea pig weighs exactly 560. grams. Write 560 grams in scientific notation.​
ad-work [718]

Answer:

5.6×10²

Explanation:

move the decimal to where there's only one one's digit and count how many times you moved the decimal place and that's your exponent

4 0
3 years ago
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