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vampirchik [111]
2 years ago
15

The intensity of a sound wave increases as the wave spreads out from the source of the sound

Chemistry
1 answer:
Alex2 years ago
5 0

Answer:

The more spread out their energy becomes

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Cdvshduejsnxhhwjxhxh ydujdbxg
fiasKO [112]

Answer:

This is not a question

Explanation:

5 0
3 years ago
Read 2 more answers
The rate constant for this second‑order reaction is 0.610 M − 1 ⋅ s − 1 0.610 M−1⋅s−1 at 300 ∘ C. 300 ∘C. A ⟶ products A⟶product
Darya [45]

Answer: It takes 3.120 seconds for the concentration of  A to decrease from 0.860 M to 0.260 M.

Explanation:

Integrated rate law for second order kinetics is given by:

\frac{1}{a}=kt+\frac{1}{a_0}

k = rate constant = 0.610M^{-1}s^{-1}

a_0 = initial concentration = 0.860 M

a= concentration left after time t = 0.260 M

\frac{1}{0.260}=0.860\times t+\frac{1}{0.860}

t=3.120s

Thus it takes 3.120 seconds for the concentration of  A to decrease from 0.860 M to 0.260 M.

8 0
3 years ago
Calculate the atomic mass of lead. The four lead isotopes have atomic masses and relative abundances of 203.973 amu (1.4%), 205.
blondinia [14]
207.217 amu
Work:
203.973 amu *(0.014) = 2.855 amu
205.974 amu *(0.241) = 49.639 amu
206.976 amu *(0.221) = 45.741 amu
207.977 amu *(0.524) = 108.979 amu

2.855 + 49.639 + 45.741 + 108.979 = 207.217 amu
8 0
3 years ago
How can a redox reaction be identified?
agasfer [191]

Answer:

'Oxidation states have changed.'

Explanation:

Redox Reactions can be identifiable by a change in oxidation number/states of two of the atoms in the reaction. Any reaction in which no oxidation numbers/state change is not a redox reaction.

3 0
2 years ago
Which of the following is a property of water
lozanna [386]

Answer:

Where are the following?

Explanation:

The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling.

7 0
3 years ago
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