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3 years ago

0.315 to scientific notation

Chemistry

2 answers:

irga5000 [103]3 years ago

7 0

Answer:

3.15 × 10^-1

3.15E-1

Explanation:

Elden [556K]3 years ago

4 0

3.15x10^-1
Explanation:

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Andreyy89

Answer:

trees collect energy from sitting in the sun, the interact with their enviorment because they provide oxygen, and they reproduce when their fruit flowers or leaves fall off.

Explanation:

8 0

3 years ago

The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.00 g of conden

algol13

Explanation:

It is known that heat (Q) required to change the phase of a given sample of mass m will be as follows.

$Q_{f} = mL_{f}$ ........ (1)

where, $L_{f}$ = latent heat of fusion

Similarly, $Q_{v}$ = mL_{v}[/tex] ....... (2)

where, $L_{v}$ = latent heat of vaporization

As it is known that value of latent heat of fusion of water is 334 J/g and latent heat of vaporization of water is 2260 J/g.

Hence, equating both the equations as follows.

$m_{condensation} \times L_{v}$ = $m_{fusion} \times L_{f}$

$m_{fusion}$ = $\frac{m_{condensation} \times L_{v}}{L_{f}}$

= $\frac{8 g \times 2260 J/g}{334 J/g}$

= 54.13 g

Hence, we can conclude that 54.13 grams of ice will melt.

7 0

4 years ago

Asap please

MissTica

Answer:

When $\Delta H^o < 0$ and $\Delta S^o > 0$

Explanation:

The spontaneity of a reaction can be determined by the sign of the Gibbs free energy change. For a spontaneous reaction, the change in Gibbs free energy should be negative, meaning:

$\Delta G^o = \Delta H^o - T\Delta S^o < 0$

Since the temperature value here corresponds to the absolute temperature, this implies that T > 0 for any T. Therefore, to have a negative difference for any temperature value, the first term, the change in enthalpy, should be negative and the change in entropy should be positive, so that we always subtract a positive number from a negative number. This corresponds to a negative value in $\Delta G^o$ .

6 0

4 years ago

1) Compounds Y and Z both have the formula C9H18.

sashaice [31]

Answer:

See explanation and images attached

Explanation:

We know that the cis isomer has more heat of hydrogenation since it is less stable than the trans isomer. Since the hydrogenation of both compounds yields the same product and the hydroboration/oxidation both give a primary alcohol, they are geometric isomers and Y is the trans isomer (Image 2).

For the compound C8H12, the compound in question must be 1,5- cyclooctadiene since two moles of the same aldehyde was obtained after ozonolysis and reaction with two equivalents of hydrogen gives cyclooctane (Image 1).