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olga55 [171]
3 years ago
7

...................................................................

Chemistry
2 answers:
Andrej [43]3 years ago
7 0

Answer:

garbage trash even. sorry said what I said

neonofarm [45]3 years ago
5 0

Answer:

Imao ;/

Explanation:

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Models have been created that predict world sea levels will rise if the current global temperature increases continue. If these
lesya [120]
To solve this question, think about which one of these options is a DIRECT effect of sea levels rising.

Choice A: If sea levels rise, they would start to cover up land that's at sea level, areas like beaches or coastal cities for example.

Choice B: Fossil fuels cause global warming. This is about the effects of global warming, not the causes. 

Choice C: Not relevant. It doesn't mention alternative energy at all in this.

Choice D: Again, effects, not causes (see Choice B explanation).

The correct answer is... CHOICE A
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3 years ago
Most of the energy released by nuclear fission is in the form of_________rays.
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3 years ago
In an equimolar mixture of o2 and n2, are the mass fractions equal?
nika2105 [10]

Answer:

No

Explanation:

The mass fraction is defined as:

w_{i}=\frac{m_{i} }{m_{t} }

where:

  • wi: mass fraction of the substance i
  • mi: mass of the substance i
  • mt: total mass of the system

<u><em>The mass fraction of two substances (A and B), will be the same, ONLY if the mass of the substance A (mA) is the same as the mass of the substance B (mB).</em></u>

An equimolar mixutre of O2 and N2 has the same amount of moles of oxygen and nitrogen, just to give an example let's say that the system has 1 mole of O2 and 1 mole of N2. Then using the molecuar weigth of each of them we can calculate the mass:

mA= 1 mole of O2 * 16 g/1mol = 16 g

mB=1 mole of N2 *28 g/1mol=28 g

As mA≠mB then the mass fractions are not equal, so the answear is NO.

4 0
3 years ago
The energy released per gram of material is __________.
OLga [1]

Answer:

I'm pretty sure the answer is C.

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Why are changes in phase physical changes?
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