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3 years ago

Not all solutions are solids dissolved in liquids. Provide 2 examples of other types of solutions.

1 answer:

7 0

<span>A substance only dissolves if the attraction between the particles of the solute and the solvent is enough to overcome the attraction of the particles of each substance for others of the same type. For instance, the attraction between the ions in table salt and water molecules is enough to both pull individual ions away from the salt crystal and to separate the water molecules to accommodate the ions. Benzene, on the other hand, does not attract the ions of salt strongly enough to remove them from the crystals. Napthalene does not dissolve in water because napthalene does not exert a strong enough attraction to water molecules to separate them and make room for itself.</span>

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5. A standardized mass was known to weigh exactly 5.0000g. It was weighed on a newly

sergey [27]

Answer:

Absolute error $= 0.001$

% Error $= 002$ 5

Explanation:

The absolute error is the the difference in the measured value and the actual value of a quantity.

Here the actual value is $5.0000$ grams

The measured value is $5.001$ grams

Absolute error

$5.001 - 5.000\\= 0.001$

Percent error

$= \frac{AE}{AV}$

Where AE stands for absolute error and AV stands for absolute value.

$= \frac{0.001}{5.000} * 100\\$

$= 0.02$ %

5 0

3 years ago

Which type of energy warms Earth’s surface?

Alex73 [517]

Answer:

infared radiation

Explanation:

7 0

3 years ago

What are the benefits of the water cycle?

ivolga24 [154]

Yea what she said sorry lol

4 0

3 years ago

Which factor below would be least likely to cause a mutation in the cells of an organism. Select one: a. Radiation b. Smoking c.

Nutka1998 [239]

Answer:

The correct option is;

c. Sound wave

Explanation:

The given options effect on mutation are given as follows;

a. Radiation

Radiation such as ultraviolet light and gamma radiation, which are electromagnetic waves, cause mutations by causing the formation of free radicals within an organism's cell resulting in the mutation characteristic effects

b. Smoking of tobacco has mutagenic effects due to the presence of several carcinogenic compounds in cigarettes

c. Sound wave is a form of mechanical wave and has no chemical effects on the chemistry of an organism and therefore does not cause mutation in cells

d. Chemical pollution can contain carcinogenic compounds that can cause mutations in the cells of organisms.

3 0

3 years ago

Use the half reaction method to balance the following reaction in acid:

sergij07 [2.7K]

Answer:

I2 + 2S2O3^2- --------> S4O6^2- + 2I^-

Explanation:

The correct equation is;

2Na2S2O3 + I2 → Na2S4O6 + 2NaI

Oxidation half equation;

2S2O3^2- --------> S4O6^2- + 2e-

Reduction half equation;

I2 + 2e ----------> 2I^-

Overall balanced redox reaction equation;

I2 + 2S2O3^2- --------> S4O6^2- + 2I^-

6 0

3 years ago