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3 years ago

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A certain skin lotion is a fine mixture of water and various oils. This lotion is cloudy and cannot be separated into oil and wa

ter by filtration. Moreover, its components do not separate when left standing. What type of mixture is it?

1 answer:

liraira [26]3 years ago

4 0

Colloid is your answer good luck <3

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The amount of kinetic energy an object has depends on

Alex777 [14]

How much it has to drop and how heavy it is. Hope this is what you're looking for:)

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2 years ago

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Which of the following is a change from a more condensed to a less condensed state of matter? Freezing Condensing Evaporating So

3241004551 [841]

Evaporating.

This is because evaporation occurs for things such as water coming in contact with a heat source that cause molecules to run crazy and begin to go farther and farther apart, becoming steam and evaporation in the air.

Therefore, during the process of evaporation, molecules become less condensed.

Hope this helps!

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3 years ago

A. Describe the molecule chlorine dioxide, CIO in terms of three possible resonance structures.

cupoosta [38]

Answer:

See explanation

Explanation:

The compound ClO2 has 19 valence electrons. ClO2 is a bent molecule with tetrahedral electron pair geometry but has two lone pairs of electrons. This is indicated by the presence of four electron pairs on the outermost shell of the central atom.

The molecule has an odd number of valence electrons, hence, it is generally regarded as a paramagnetic radical. None of the proposed Lewis structures for the molecule is satisfactory because none of them obeys the octet rule.

From the images attached, one can easily see that the electron dots around the oxygen and chlorine atoms does not satisfy the octet rule in all the resonance structures shown.

5 0

3 years ago

Oxygen atoms have six outer electrons<br><br> Write the symbol for an oxide ion.

Shkiper50 [21]

Answer:

$O^{2-}$ is the symbol for an oxide ion

7 0

3 years ago

Consider a mixture of 10 billion 02 molecules and 10 billion H2 molecules. In what way is this mixture similar to a sample conta

sashaice [31]

Explanation:

Number of oxygen molecules = 10 billion = $10^9$

Number of hydrogen molecules = 10 billion = $10^9$

Number of molecules of hydrogen peroxides = 10 billion = $10^9$

Moles of oxygen gas : $n_{o_2}$

$\frac{10^9}{N_A}=\frac{10^9}{6.022\times 10^{23} mol^{-1}}=1.6605\times 10^{-15} mol$

Moles of hydrogen gas : $n_{H_2}$

$\frac{10^9}{N_A}=\frac{10^9}{6.022\times 10^{23}mol^{-1}}=1.6605\times 10^{-15} mol$

$n_{O_2}=n_{H_2}$

Moles of hydrogen gas : $n_{H_2O_2}$

$\frac{10^9}{N_A}=\frac{10^9}{6.022\times 10^{23}mol^{-1}}}=1.6605\times 10^{-15} mol$

$n_{O_2}=n_{H_2}-n_{H_2O_2}$

Number of moles in hydrogen gas, oxygen gas and hydrogen peroxide is same.

Total number of atoms in $10^6$ molecules of oxygen:

$2\times 10^6$ (2 atoms in 1 molecule)

Total number of atoms in $10^6$ molecules of hydroegn :

$2\times 10^6$ (2 atoms in 1 molecule)

Total number of atoms in $10^6$ molecules of hydrogen peroxide:

$4\times 10^6$ (4 atoms in 1 molecule)

Number of oxygen atoms and number of hydrogen atoms are equal but individually they are not equal to number of atoms in hydrogen peroxide.

5 0

3 years ago