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VladimirAG [237]
3 years ago
10

Does a chemical bond join atoms together in a water molecule?

Chemistry
1 answer:
MrRissso [65]3 years ago
3 0
Yes. 

A covalent bond holds it together, which is chemical. 
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Which compound will have the larger rf value on a si02 tlc plate using 10 % ethyl acetate/ hexane as eluent: 3-decanone or 3-dec
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The formula of determining the R_f value is:

R_f = \frac{distance travelled by the solute}{distance travelled by the solvent}

where both the distance are measured from the common origin.

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Among 3-decanone and 3-decanol, 3-decanone will have high R_f as it is non-polar.

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Among cyclooctane and cyclooctanone, cyclooctane will have high R_f as it is non-polar.

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Here we have to calculate the heat required to raise the temperature of water from 85.0 ⁰F to 50.4 ⁰F.

10.857 kJ heat will be needed to raise the temperature from 50.4 ⁰F to 85.0 ⁰F

The amount of heat required to raise the temperature can be obtained from the equation H = m×s×(t₂-t₁).

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Thus 10857.354 J or 10.857 kJ heat will be needed to raise the temperature.

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