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Tanzania [10]
3 years ago
10

What type of change is this picture showing?

Chemistry
1 answer:
sladkih [1.3K]3 years ago
8 0

Answer: physical

Explanation: freezing and melting are physical changes.

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Definition of biogenesis
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Answer:

Biogenesis is the production of new living organisms. Conceptually, biogenesis sometimes attributed to Louis Pasteur and encompasses the belief that complex living things come only from other living things, by means of reproduction.

Explanation:

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3 years ago
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The combustion of ammonia in the presence of excess oxygen yields no2 and h2o: 4 nh3 (g) + 7 o2 (g) â 4 no2 (g) + 6 h2o (g) the
VLD [36.1K]
The answer would be 118.68 g.
Explanation for this is:4 moles of NH3 give 4 moles of NO2 
so 1mole of NH3 will give 1 mole of NO2 
43.9 grams of NH3 contains 2.58 moles 
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which is 118.7 grams this the amount of oxygen that is used.
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3 years ago
Stuck stupid science homework. anyone know answers?
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The charge of a Rb ion would be +1
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2 years ago
What property can be used to determine if a sample is a pure substance or a mixture?
Yuliya22 [10]

Answer:

Melting point

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Pure substances have sharp melting and boiling points while impurities lower the melting point and raise the boiling point

7 0
2 years ago
Type of Reaction<br> _Mg₃N2 →
nevsk [136]
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