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Ber [7]
3 years ago
8

What 3 atoms make up the universe

Chemistry
1 answer:
jek_recluse [69]3 years ago
6 0
Hydrogen, helium and oxygen
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The hybridization associated with the central atom of a molecule in which all the bond angles are 180° is ____.
enot [183]

Answer:

Sp hybrid

Explanation:

Sp is linear I n shape

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total kinetic energy of all the atoms that make up a sample of matter, would that be heat or mechanical????
Yuki888 [10]
Generally speaking mechanical energy is energy which physically moves (the object), while the thermal energy is energy from the movement of atoms.
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What is the pH of a solution that contains 0.009 grams of oxalic acid in 100<br> mL of water?
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5 0
2 years ago
5. A 5.00 g sample of an unknown substance was heated from 25.2 C to 55.1 degrees * C , and it required 133 to do so. Identify t
Leviafan [203]

Answer:

Aluminum

Explanation:

Given

T_1 = 25.2^oC

T_2 = 55.1^oC

m = 5.00g

\triangle Q= 133J

<em>See attachment for chart</em>

Required

Identify the unknown substance

To do this, we simply calculate the specific heat capacity from the given parameters using:

c = \frac{\triangle Q}{m\triangle T}

This gives:

c = \frac{\triangle Q}{m(T_2 - T_1)}

So, we have:

c = \frac{133J}{5.00g * (55.1C - 25.2C)}

c = \frac{133J}{5.00g * 29.9C}

c = \frac{133J}{149.5gC}

c = 0.89\ J/gC

From the attached chart, we have:

Al(s) = 0.89\ J/gC --- The specific heat capacity of Aluminum

<em>Hence, the unknown substance is Aluminum</em>

7 0
3 years ago
What 2 things have to increase for metamorphisim to occur
Flauer [41]
For metamorphism of rock to occur, temperature and pressure must increase. Rocks created in this manner are called metamorphic rocks.
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3 years ago
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