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luda_lava [24]
3 years ago
12

Does sound travel faster in a warm room or a cold room? Explain your answer.

Chemistry
2 answers:
allochka39001 [22]3 years ago
7 0

Answer:

Sound travels faster in a warm room than a cold room because particles bump into each other more often, increasing the chances of energy transfer, and the waves travel faster.

lidiya [134]3 years ago
4 0
Sound travels anywhere, mainly bc of the sound waves moving through the air. Sound can be blocked. In cold weather outside you can hear and in hot weather outside you can hear therefore sound can travel in a cold room and a hotter room .
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Calorimetric studies show that the reaction is exothermic. 2NO2(g) N2O4(g) + 14.1 kcal. Based on this information, which one--if
FinnZ [79.3K]
In order for you to get the answer, please have in mind the following situation: To increase the molar concentration of N2O4(g), 2NO2(g) should also increase for equilibrium to occur. Now, this equation is exothermic. By <span>Le Chatelier's principle, equilibrium constant and reaction constants also come into play in terms of increasing or decreasing the temperature. After that I know you can find the answer. </span>
5 0
3 years ago
3. Discuss the difference between molarity and molality, state the units of each, state the symbol for each, and give an example
dangina [55]

<span>Molality(m) or molal concentration is a measure of concentration and it refers to amount of substance in a specified amount of mass of the solvent. Used unit for molality is mol/kg which is also sometimes denoted as 1 molal. It is equal to the moles of solute (the substance being dissolved) divided by the kilograms of solvent (the substance used to dissolve).</span>

Molarity(M) or molar concentration is also a measure of concentration and represents the amount of substance per unit volume of solution(number of moles per litre of solution. Used unit for molarity is mol/L or M. A solution with a concentration of 1 mol/L is equivalent to 1 molar (1 M).

Molality is preferred when the temperature of the solution varies, because it does not depend on temperature, (neither number of moles of solute nor mass of solvent will be affected by changes of temperature), while molarity changes as temperature changes(volume of solution changes as temperature changes).


4 0
4 years ago
If the unknown elements on the periodic table are "unknown" how did they end up in the periodic table in the first place? *think
mezya [45]

Answer:

The periodic table is a marvel of organization, with each column and each row showing all ... Scientists identified the rest of them in the first half of the 20th century. ... They created in their lab a synthetic, previously unknown element. ... The Berkeley scientists did this for weeks on end, and produced a tiny amount of curium.

Explanation:

8 0
4 years ago
On the periodic table, elements are arranged by
frez [133]

Answer:

increase atomic number

they all have numbers on the top that continues

8 0
2 years ago
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Elodia [21]

Answer:

22.88g

Explanation:

Hope this helped <3

8 0
3 years ago
Read 2 more answers
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