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aalyn [17]
3 years ago
10

How do atomic and molecular interactions explain the properties of matter that we see and feel

Chemistry
1 answer:
Licemer1 [7]3 years ago
8 0

Answer:they change

Explanation:

just because

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Please help me out i will give you brainlist. 0.500 is wrong
Alik [6]
<h3>Answer:  b) 0.250 mol</h3>

============================================

Work Shown:

Using the periodic table, we see that

  • 1 mole of carbon = 12 grams
  • 1 mole of oxygen = 16 grams

These are approximations and these values are often found underneath the atomic symbol. For example, the atomic weight listed under carbon is roughly 12.011 grams. I'm rounding to 2 sig figs in those numbers listed above.

So 1 mole of CO2 is approximately 12+2*16 = 44 grams. The 2 is there since we have 2 oxygens attached to the carbon atom.

-------------------

Since 1 mole of CO2 is 44 grams, we can use that to convert from grams to moles.

11.0 grams of CO2 = (11.0 grams)*(1 mol/44 g) = (11.0/44) mol = 0.250 mol of CO2

In short,

11.0 grams of CO2 = 0.250 mol of CO2

This is approximate.

We don't need to use any of the information in the table.

3 0
3 years ago
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What is the density of a solid that has a mass of 9.2 grams and a volume of 12.3 cm3 ? Would this object float or sink in water?
cluponka [151]
  • Mass=9.2g
  • Volume=12.3

\boxed{\sf Density=\dfrac{Mass}{Volume}}

\\ \sf\longmapsto Density=\dfrac{9.2}{12.3}

\\ \sf\longmapsto Density=0.74g/cm^3

  • Density of water =1g/cm^3

It will float in water

7 0
3 years ago
Which of the following reactions would be predicted by the activity series list
den301095 [7]

Answer:

it's a D answer if it's wrong please can you understand my question please

3 0
3 years ago
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Is honey a heterogeneous or homogeneous mixture?
Amiraneli [1.4K]
Homogeneous mixture because it contains the same properties as homogeneous 
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Increasing the volume of a sealed container will cause the gas particles within the container to.
Stella [2.4K]

Answer:

collide less often and with less force

3 0
1 year ago
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