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creativ13 [48]
3 years ago
12

If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into oth

er substances by chemical processes, it is ________.
A) heterogeneous mixture
B) element
C) homogeneous mixture
D) compound
E) mixture of elements
Chemistry
1 answer:
olga nikolaevna [1]3 years ago
6 0
D. because matter is uniform through and cannot be separated into other substances by physical means.
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How many atoms are there in 3.559*10^-6 mol of krypton?
algol [13]

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<h2>2.143 \times  {10}^{18}  \:  \: atoms</h2>

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n = 3.559 \times  {10}^{ - 6}  \: mol

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<h3>N  = 3.559 \times  {10}^{ - 6}  \times 6.02 \times  {10}^{23}  \\  = 2.1425 \times  {10}^{18}</h3>

We have the final answer as

<h3>N  = 2.143 \times  {10}^{18}  \:  \: atoms</h3>

Hope this helps you

3 0
3 years ago
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