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Mandarinka [93]
3 years ago
7

Why is petrified wood considered a fossil?

Chemistry
2 answers:
earnstyle [38]3 years ago
5 0

Answer:

Petrified wood was part of a plant that has been changed into rocks.

Explanation:

Yeet

Novosadov [1.4K]3 years ago
3 0

Answer:

it can be changed into rocks

Explanation:

im 100% sure

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Asuming all orbitals are in the same energy level which type of orbital has the lowest energy?
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Answer: C. S orbital

Explanation: The s orbital is the lowest orbital shell which is much closer to the nucleus. This orbital can hold a maximum of 2 electrons, a perfect example for this is the 1s orbital which is the closest to the atomic nucleus.

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3 years ago
Calculate the mass, in grams, of a single tellurium atom (mte = 127.60 amu ).
UNO [17]

1 Atomic mass unit is the mass of an atom or it caliberates mass on atomic scale. It is also expressed in dalton denoted by Da whereas Atomic mass unit is denoted by amu.

1 amu can be expressed in grams as follows:

1 amu = 1.6 * 10^-2^4 g

Mass of Te = 127.6 amu

For converting in grams,

M = (127.6 ) * 1.6 * 10^-2^4 g

M = 204.16 * 10^-2^4 g

Thus, mass of Te is 204.16 * 10^-2^4 g

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3 years ago
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So, by applying the above formula:

19.3 =  \frac{6.5}{v}

v = 0.33 \: ml

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