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Lapatulllka [165]
2 years ago
6

What is the smallest unit of a compound like carbon dioxide (CO2), water (H2O), nitrogen dioxide (NO2) that still have all the p

roperties of that compound? Choose the answer below.
A: a nucleus
B: an atom
C: an element
D: a molecule
Chemistry
2 answers:
pogonyaev2 years ago
7 0
D

Hope this is helpful
spayn [35]2 years ago
6 0
D


Hope this helps


Mark brainliest please
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What is the condensation AND freezing point of water C AND F!!
vladimir2022 [97]

Answer:

Condensation 212F or 100C, Freezing 32F or 0C

Explanation:

Condensation 212 degrees Fahrenheit or 100 degrees Celsius.

Freezing point 32 degrees Fahrenheit or 0 degrees Celsius.

4 0
2 years ago
What is the symbol for the carbon isotope with seven neutrons?
Tresset [83]
Carbon -13 has 7 neutrons and carbon -12 has six neutrons. Carbon -12 is the most common isotope of Carbon. Carbon -14 is radioactive and vary rare. The symbols for the isotopes of Carbon atoms shown here indicate they each have six protons but mass numbers of 14, 13, and 12. Hope this helps. :)
8 0
3 years ago
What is the volume of 300. g of mercury vapor at 822K and 0.900 atm?
Dominik [7]

Answer:

112.2L

Explanation:

Volume (V) = 300g

Temperature (T) = 822K

Pressure (P) = 0.9atm

using the ideal gas equation;

PV = nRT\\\\ V = \frac{nRT}{P}

Molar gas constant (R) = 0.0821L.atm/mol.K

Mole (n) = \frac{Mass (m)}{Molar mass (M)}                Molar mass of Mercury  = 200.59g/mol

n = \frac{300g}{200.59 g/mol} \\

   = 1.496mol

Now, the volume can be calculated;

V = \frac{1.496mol* 0.0821L.atm/mol.K*822K}{0.9atm}

∴Volume of mercury = 112.2L

8 0
2 years ago
Explain the reaction of metals with water.<br><br>​
telo118 [61]

Answer:

it rusts

Explanation:

4 0
3 years ago
Which molecular formula corresponds to this model of a chemical compound? (black = carbon; red = oxygen; white = hydrogen)
TEA [102]
Blue should be added somewhere. , than yellow, lastly red+black
Blue, oxygen+hydrogen, carbon+oxygen.
4 0
3 years ago
Read 2 more answers
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