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MAXImum [283]
2 years ago
10

Which shows one example of physical change and the one example of a chemical change?

Physics
1 answer:
atroni [7]2 years ago
8 0

Answer:

D. Freezing water and burning coal

Explanation:

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Describe three possible careers in physical science
Amanda [17]

Answer:

physical sicence boilagiy sxcience and earth science

Explanation:

6 0
3 years ago
The atomic number of beryllium (Be) is 4, and the atomic number of barium (Ba) is 56. Which comparison is best supported by this
svlad2 [7]

Answer: They are in the same group because they have similar chemical properties, but they are in different periods because they have very different atomic numbers.

Explanation: On Edgenuity!!

7 0
3 years ago
Comparing sound waves with different frequencies and wavelengths traveling through air,
aleksklad [387]

Explanation:

The speed of sound wave only depends on the property of the medium like density and the bulk modulus of the medium particle. The speed of sound also depends on the temperature of the medium.

On comparing sound waves with different frequencies and wavelengths traveling through air, the speed of the wave doesn’t depend on the frequency or the wavelength. Hence, the correct option is (1).

4 0
3 years ago
Calculate the number of electrons passing a point in the wire in 1 min when the current is 1 A
Vera_Pavlovna [14]

Explanation:

When one coulomb charge passes through any cross section of the wire per second,the current passing is one ampere. Charge of electron ,e=1.6X10^-19C. n=1/(1.6X10^-19)=6.25X10^18.Sep 17, 2017

7 0
3 years ago
which of the following is not necessary in a great summary?your investigayltion, your predicatio, excuses, possible errors?
zloy xaker [14]

Excuse are not acceptable


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3 years ago
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