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lord [1]
3 years ago
15

Help me plz Identify the state of matter.

Chemistry
2 answers:
musickatia [10]3 years ago
8 0
Solids liquids and more
maw [93]3 years ago
8 0
Matter can exist in one of three main states solid liquid and gas
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At a certain temperature the vapor pressure of pure heptane C7H16 is measured to be 454.mmHg. Suppose a solution is prepared by
OlgaM077 [116]

Answer:

Mass of heptane = 102g

Vapor pressure of heptane = 454mmHg

Molar mass of heptane = 100.21

No of mole of heptane = mass/molar mass = 102/100.21

No of mole of heptane = 1.0179

Therefore the partial pressure of heptane = no of mole heptane *Vapor pressure of heptane

Partial pressure of heptane = 1.0179*454mmHg

Partial pressure of heptane = 462.1096 = 462mmHg

the partial pressure of heptane vapor above this solution = 462mmHg

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3 years ago
D-Fructose is the sweetest monosaccharide. How does the Fischer projection of D-fructose differ from that of D-glucose? Match th
Aleks04 [339]

Answer:

aldehyde

carbon-1

ketone

carbon-2

Explanation:

Monosaccharides are colorless crystalline solids that are very soluble in water. Moat have a swwet taste. D-Fructose is the sweetest monosaccharide.

In the open chain form, monosaaccharides have a carbonuyl group in one of their chains. If the carbonyl group is in the form of an aldehyde group, the monosaccharide is an aldose; if the carbonyl group is in the form of a ketone group, the monosaccharide is known as a ketose. glucose is an aldose while fructose is a ketose.

In D-glucose, there is an aldehyde functional group, and the carbonyl group is at carbon-1 when looking at the Fischer projection.

In D-fructose, there is a ketone functional group, and the carbonyl group is at carbon-2 when looking at the Fischer projection.

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2. What human-related environmental
WITCHER [35]

Answer:

Polution

Explanation:

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3 years ago
1. If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?
Iteru [2.4K]

You can find the neutrons by subtracting the mass by the atomic number. 14-6=8 neutrons

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3 years ago
Wetlands help to prevent flooding. Please select the best answer from the choices provided T F
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True, wetlands help to prevent flooding.
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3 years ago
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