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olga2289 [7]
3 years ago
15

A Moving to another question will save this response.

Chemistry
1 answer:
irinina [24]3 years ago
3 0
The ultimate maximum notebooks would be the answer to a O density of alcohol 7.88 G/
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Which could describe the motion of an object? Select 3 correct answers. distance = 10 meters and displacement = 1 meter distance
Anit [1.1K]

Answer:

The three correct statements which could describe the motion of an object are:

<u><em /></u>

  • <u><em>distance = 10 meters and displacement = 1 meter </em></u>
  • <u><em>distance = 10 meters and displacement = 0 </em></u>
  • <u><em>distance = 10 meters and displacement = 10 meters</em></u>

Explanation:

<em>Motion</em> is the change of position of an object along any path. As such, the path can be rectilinear or along a curve whose direction is variable.

Two important characteristics used to describe a motion are the length of the path traveled and the final distance from the starting point.

The length of the path traveled is what distance describes. The final distance from the starting point to the final point is what displacement describes.

The maginitude of the displacement is the difference between the final position and the starting position.

When the path traveled is rectilinear, the distance and the magnitude of the displacement are the same.

When the path is not rectilinear, the distance (the length of the path) is always greater than the magnitude of the displacement.

Thus, as for the correct statements, you have:

  • <u>distance = 10 meters and displacement = 1 meter </u>

        This means that the object traveled along a 10 meters path, but since it was not rectilinear, the difference between the final position and the starting position is just 1 meter.

  • <u>distance = 10 meters and displacement = 0 </u>

<u />

       This means that the object traveled 10 meters but it ended back in the very same place from which it departed (a complete turn around a table, for example).

  • <u>distance = 10 meters and displacement = 10 meters</u>

        This means that the travel was in the trip was alogn a straight line, and the object traveled 10 meters and ended 10 meters away from the starting place.

As for the two incorrect statements:

  • <u>distance = 0 and displacement = 10 meters </u>

  • <u>distance = 1 meter and displacement = 10 meters</u>

It is not possible that the object ended up 10 meters away from where it was (the displacement), by traveling just 1 meter less than that.

8 0
3 years ago
Read 2 more answers
How many acetone molecules are in a bottle of acetone with a volume of 445 mL ? (density of acetone = 0.788 g/cm3).
Mkey [24]
<h2>Hello!</h2>

The answer is: 3.63x10^{24}particles

<h2>Why?</h2>

First, we need to calculate the molecular weight of the acetone (CH3COCH3)

So,

C=12.011g/mol\\O=15.99g/mol\\H=1.008g/mol

Then,

CH3COCH3=12.011+(1.008)*3+12.011+15.999+12.011+(1.008)*3=58.08g/mol

Second, we need to calculate the mass of the acetone in the bottle

We need to remember that 1cm^{3}=1mL

So,

445cm^{3}*\frac{0.788g}{cm^{3}}=350.66g

Third, we need to calculate the number of moles:

350.66g*\frac{1mol}{58.08g}=6.03moles

Fourth, we need to calculate the number of atoms:

Remember, 1 mol=6.022x10^{23}particles

Therefore,

6.03moles*\frac{6.022x10^{23}particles }{1mol}=3.63x10^{24}particles

Have a nice day!

4 0
4 years ago
Read 2 more answers
A negative change in entropy indicates that...
vovangra [49]

Answer:

B. the products have a smaller number of available energy microstates than the reactants.

4 0
3 years ago
Read 2 more answers
What would be the bond order for He 2 2- molecule
LuckyWell [14K]

Answer:

In He2 molecule,

Atomic orbitals available for making Molecular Orbitals are 1s from each Helium. And total number of electrons available are 4.

Molecular Orbitals thus formed are:€1s2€*1s2

It means 2 electrons are in bonding molecular orbitals and 2 are in antibonding molecular orbitals .

Bond Order =Electrons in bonding molecular orbitals - electrons in antibonding molecular orbitals /2

Bond Order =Nb-Na/2

Bond Order =2-2/2=0

Since the bond order is zero so that He2 molecule does not exist.

Explanation:

8 0
3 years ago
What represents a community?<br> pond<br> B<br> a snail<br> snails<br> D snails, guppies and plants
OLga [1]

D snails, guppies and plants. The community should be diverse and have lots of biodiversity.

7 0
3 years ago
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