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3 years ago

2H2O → 2H2 + O2

Chemistry

1 answer:

Maurinko [17]3 years ago

6 0

Decomposition. The compound element is breaking down into 2H2 and O2.

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How is CCl4 non polar?

Vinvika [58]

The four bonds of carbon tetrachloride (CCl4<span>) are </span>polar, but the molecule isnonpolar<span> because the bond polarity is canceled by the symmetric tetrahedral shape. When other atoms substitute for some of the Cl atoms, the symmetry is broken and the molecule becomes </span>polar

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4 years ago

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A graduate cylinder was filled to 25.0 mL with a liquid. A solid object weighting 39.7 g was immersed in the liquid, raising the

ELEN [110]

Answer:

184478 qreo si si es es hola

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3 years ago

An aqueous solution 10 g of an optically pure substance diluted to 500ml with water and placed in a polarimeter tube 20 cm long.

Gennadij [26K]

Explanation:

Formula to calculate specific rotation is as follows.

Specific rotation ( $[\alpha]$ ) = $\frac{\alpha}{c} \times l$

where, $\alpha$ = observed rotation

c = concentration in g/ml

l = path length in dm

It is given that,

$\alpha = -6.16^{o}$

c = $\frac{10 g}{500 ml}$ = 0.02 g/ml

l = 20 cm = 2 dm (as 1 dm = 10 cm)

Therefore, calculate the specific rotation as follows.

Specific rotation ( $[\alpha]$ ) = $\frac{\alpha}{c} \times l$

= $\frac{-6.16^{o}}{0.02 g/ml} \times 2 dm$

= $-616^{o}$

Thus, we can conclude that the specific rotation of this compound is $-616^{o}$ .

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3 years ago

Which one of the following compounds will NOT be soluble in water? Which one of the following compounds will NOT be soluble in w

Nadusha1986 [10]

Answer:

$BaSO_{4}$ will be not soluble in water

Explanation:

LiOH is a strong base. Hence it gets completely dissociated in aqueous solution.

$NaNO_{3}$ is a strong electrolyte. Hence it gets completely dissociated in aqueous solution.

$MgCl_{2}$ is a strong electrolyte. Hence it gets completely dissociated in aqueous solution.

$K_{2}S$ is a strong electrolyte. Hence it gets completely dissociated in aqueous solution.

$BaSO_{4}$ is a sparingly soluble salt. Hence it is not dissociated and hence dissolved in water. This is due to the fact that both $Ba^{2+}$ and $SO_{4}^{2-}$ ions are similar in size. Hence crystal structure of $BaSO_{4}$ is quite stable. Hence $BaSO_{4}$ is reluctant to undergo any dissociation in aqueous solution.