4 years ago

Explain why the atmosphere is classified as a mixture

Chemistry

1 answer:

Kaylis [27]4 years ago

6 0

The components are not permanently together. They can be separated and thats why its a mixture.

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Calculate the density for a rectangular block using the following measurements: Length = 10 cm, Width = 1.1 cm, Height = 15 cm,

Ksivusya [100]

Answer:

0.40 g/cm3

Explanation:

density = mass / volume.

mass = 65.2 grams

volume = 10*1.1*15=165 cm3

so density = 65.2/165=0.40 g/cm3

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3 years ago

What is the charge of a proton? neutral negative positive

Brilliant_brown [7]

The charge of a proton is positive.

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An isotonic solution has: a)The same pH as blood b) More ions per unit volume than blood c) More water per unit volume than blo

Veronika [31]

Answer:

d) osmotic pressure equal to that of blood

Explanation:

Answer is not a) because pH is concentration of positive hydrogen in solution but it not note all solutes. Answer is not b) because like answer a), it not note solutes without charge and, additionally it not note the pressure equilibrium when solvent flows through a membrane . Answer is not c) because it can be more or less water (solvent).

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A scientist eliminated all living organisms in a jar of soup by heating it. He then left the soup jar uncovered for some days. A

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Spores in the air or contamination through some sort of insect interaction. In an open system, there are billions of microbial agents floating around. With an open container containing a food source and time, the likelihood of contamination is nearly %100.

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3 years ago

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What is the bond order of c2−?express the bond order numerically?

diamong [38]

MO Diagram of C₂⁻ is shown below,

Bond order is calculated as,

Bond Order = [# of e⁻s in BMO]-[#of e⁻s in ABMO] / 2
Where,

BMO = Bonding Molecular Orbital

ABMO = Anti-Bonding Molecular Orbital

Putting values,

Bond Order  =  [9]-[4] / 2

Bond Order  =  5 / 2

Bond Order  =  2.5

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4 years ago

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