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inn [45]
2 years ago
7

CCC Matter and Energy The dashed curve shows

Chemistry
1 answer:
Bogdan [553]2 years ago
7 0

The amount of absorption force is not same at all time and at all where .

It has difference at different time periods

So during those the curve goes up and down and repeat this flow

So there are dips

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What is the median of the following set: 2, 4, 6, 8, and 10?
labwork [276]

Answer:9

Explanation:

(3+8+10+15)/4 = 36/4 = 9

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3 years ago
The heat combustion of glucose (C6H12O6) is desrcribed by the process:
spayn [35]

Answer:

a) Equilibrium will shift to the left i.e. reactants

b) K will increase with increase in temperature

Explanation:

The given reaction is:

C6H12O6 + 6 O2 ↔ 6 CO2 + 6 H2O               ΔH = -2816 kJ/mol

a) As per Le Chatelier's principle, for a reaction at equilibrium any changes in temperature, pressure or concentration will shift the equilibrium in a direction so as to undo the effect of the induced change.

The given reaction is exothermic (since ΔH is negative) i.e. it accompanied by the release of heat and hence an increase in temperature. Therefore, if the temperature is increased the equilibrium will shift in the opposite direction i.e. towards the left or towards the reactants.

b) The equilibrium constant (K) and temperature T are related via the Van't Hoff equation:

[ln\frac{K2}{K1}=\frac{-\Delta H}{R}[\frac{1}{T2}-\frac{1}{T1}]

In the given reaction, ΔH is negative and the condition is T2>T1

Therefore, K2 > K1

The value of equilibrium constant will increase with increase in temperature

8 0
3 years ago
Which characteristic is used to identify minerals?
snow_tiger [21]
The ways to identify a mineral are LUSTER, density, hardness, and cleavage. 
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After extended stirring of a spatula sized portion of a solid drug in 100 mL of water, the drug appeared to be insoluble. Yet wh
Marina86 [1]

Answer:

a saturated solution

Explanation:

A saturated solution is a solution that already contains just as much solute as it can normally hold at a given temperature.

When more solute is added to a saturated solution, the added solute does not dissolve.

The fact that when the liquid was separated and evaporated, some solid crystals were recovered means that the liquid has already dissolved the amount of solute that it can normally hold at that temperature. That is, the liquid is already a saturated solution hence more solute does not dissolve.

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3 years ago
GIVING BRAINLIEST. Practice questions
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Explanation:

a) 1.4×10³

b) 1.0×10^-7

c)1.8×10^24

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3 years ago
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