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Temka [501]
3 years ago
7

Can someone help please

Chemistry
2 answers:
enyata [817]3 years ago
8 0

Answer:

d. cells are made of atoms and molecules. :)

Explanation:

hope i helped

Scrat [10]3 years ago
3 0
4th. Cells are made of atoms and molecules
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The answer is A) Water has surface tension.
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A fossil which has been preserved by it's replacement by minerals is called _______
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At room temperature (208C) and pressure, the density of air is 1.189 g/L. An object will float in air if its density is less tha
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Total density of filled ball with nitrogen gas: \frac{0.12G+0.6524g}{0.560L} = 1.3792g/L

The relationship between mass and volume can be easily determined using density; for example, the mass of a body is equal to its volume multiplied by the density (M = Vd), whereas the volume is equal to the mass divided by the density (V = M/d). The ball filled with nitrogen will not float in the air because total density of filled ball is greater than the density of an air. Density of the evacuated ball D = 0.214 g/L

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4 0
1 year ago
1. Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) w
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From the fact that oxygen is in group 16 and carbon is in group 14, the structure of CO2 must be O=C=O. In methane, there is no bond between any of the hydrogen atoms. The structure of H2O2 is H–O–O–H.

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In H2O2, there is the peroxide ion that has the structure O-O. Hence, the correct structure of H2O2 is H–O–O–H.

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5 0
3 years ago
Please help me with
kkurt [141]

Answer:

which one?

Explanation:

5 0
3 years ago
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