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Afina-wow [57]
2 years ago
11

Your friend looks at a piece of ice and says “Solids, like ice, have a fixed shape because the particles are not moving.” Is you

r friend correct? Why or why not?
Chemistry
2 answers:
Alex_Xolod [135]2 years ago
6 0

Answer:

yes

Explanation:

Zanzabum2 years ago
6 0

Answer:

yes he is correct

Explanation:

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Why are pipes bursting in the in extremely cold weather?
avanturin [10]

Water is the only common substance that when you freeze it, it's volume INCREASES.

When the pipe originally held the "all full" volume and the the water expanded, it put a tremendous amount of pressure on the pipe. Enough pressure and the pipe would burst.

8 0
3 years ago
PLeaseee ITS Timedddd + BrainlIESTT
zmey [24]

Answer:

d. 12.3 grams of Al2O3

Explanation:

Based on the reaction:

4Al + 3O2 → 2Al2O3

<em>Where 4 moles of Al reacts in excess of oxygen to produce 2 moles of aluminium oxide.</em>

<em />

To solve this question we must find the moles of Aluminium. With these moles we can find the moles of aluminium oxide using the reaction:

<em>Moles Al -Molar mass: 26.9815g/mol-</em>

6.50g * (1mol / 26.9815g) = 0.241 moles Al

<em>Mass Al₂O₃ -Molar mass: 101.96g/mol-</em>

0.241 moles Al * (2 mol Al2O3 / 4 mol Al) = 0.120 moles Al2O3

0.120 moles Al2O3 * (101.96g / mol) =

12.3g of Al2O3 are produced.

Right answer is:

<h3>d. 12.3 grams of Al2O3 </h3>

8 0
3 years ago
Explain why 2-bromopropane reacts with sodium iodide in acetone over 104 times faster than bromocyclopropane. hint: examine the
Mama L [17]

Answer:-

The reaction of 2-bromopropane reacts with sodium iodide in acetone is an example of Sn2 reaction.

The I - attacks from backside to give the transition state for both.

If we compare the transition state for cyclobromopropane 2-bromopropane then we see in case of cyclobromopropane transition state, one of the H is very close to the incoming I -.

This results in steric strain and less stability of the transition state. Hence 2-bromopropane reacts with sodium iodide in acetone over 104 times faster than bromocyclopropane.

7 0
3 years ago
Which statement below references interactions between the geosphere, the hydrosphere and the biosphere?
erastovalidia [21]
Ekekoskekeoejekskdodjdod
7 0
3 years ago
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Why would a scientist only use observations to formulate a theory rather than follow the scientific method?
Alenkinab [10]

Answer: Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test theories

Explanation:

7 0
2 years ago
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