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artcher [175]
2 years ago
14

PPPLLLSSS HELP NOW 15 POINTS WHOEVER ANSWERS

Chemistry
1 answer:
zhenek [66]2 years ago
5 0

Answer:

A.evidence to the existence of life

Explanation:

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Which changes can reach dynamic equilibrium
soldier1979 [14.2K]

Answer:

D - chemical and physical

Explanation:

Only chemical and physical changes can reach the level of dynamic equilibrium. Nuclear reactions cannot reach dynamic equilibrium.

  • A system is in dynamic equilibrium when the rate of forward reaction is the same as that of backward reaction in a reversible reaction.
  • Nuclear reactions cannot be reversed.
  • Dynamic equilibrium is prominent in chemical reactions. It is commonly found that as a reaction occurs, the backward and forward reactions can reach equilibrium levels.
  • In physical changes, this can also occur when certain conditions of pressure and temperatures are satisfied.
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3 years ago
If you have a sample of honey that has a mass of 20 grams what is the volume
tino4ka555 [31]
Not enough information to find the volume, unless the density of the substance was given or some container of honey with a measure in centimeters cube.
8 0
3 years ago
What mass of nitrogen Dioxide, NO2, would be produced by the decomposition of 75.0g of copper (II) nitrate?
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When copper(II) nitrate Cu(NO3)2 decomposition, the final products will determine by temperature. But the ratio of Cu(NO3)2 and NO2 is constant: 1:2. So mole number of 75 g is 0.4 mol. So NO2 is 0.8 mol and is 36.8 g.
7 0
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Identify three factors that characterize aquatic systems
givi [52]
While terrestrial biomes are shaped by air temperature and precipitation, aquatic systems are characterized by factors such as water salinity, depth, and whether the water is moving or standing. If that's what you mean?
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In terms of shape and volume, how can a gas be defined ?
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Particles in a gas are far apart compared to a solid or liquid, allowing it not to have a definitive shape or volume. This also means that gases can fill any container and be easily compressed.

4 0
3 years ago
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