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Rina8888 [55]
3 years ago
12

Why would sand and water be an example of a heterogeneous mixture?

Chemistry
2 answers:
notsponge [240]3 years ago
5 0

Answer: Sand and water be an example of a heterogeneous mixture because:-

  • The mixture does not have a uniform appearance.
  • The mixture does not maintain a uniform composition.
  • The sand stays suspended in the water.

Explanation:

A homogeneous mixture is a mixture in which solute particles are uniformly distributed throughout the solution. Whereas in a heterogeneous mixture particles of solute are not uniformly distributed throughout the solution.

For example, sand and water is a heterogeneous mixture because here sand particles are not uniformly distributed in the water. Hence, this mixture does not have uniform composition.

Also, after sometime the sand will deposit at the bottom of water, that is, sand will suspend in the water.

podryga [215]3 years ago
3 0
The mixture does not maintain a uniform composition. A homogeneous mixture really is the same anywhere you sample it, while sand generally settles out of water when given the chance and there's likely more sand at the bottom than at the top.
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Based on their valencies, the subscripts of the ionic compounds formed will be:

  • 1 and 1
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<h3>What subscripts would you most likely use if the following substances formed an ionic compound?</h3>

A. An alkali metal and a halogen.

An alkali metal and a halogen both have valencies of one.

Therefore the subscripts would be 1.

B. An alkali metal and a non-metal from group 16.

An alkali metal has a valency of 1 and a group 16 non-metal has a valency of 2.

By exchange of valencies, the subscript would be 2 and 1.

C. An alkaline earth metal and a halogen.

An alkaline earth metal has a valency of 2 and a halogen has a valency of 1.

By exchange of valencies, the subscripts would be 1 and 2.

D. An alkaline earth metal and a non-metal from group 16.

An alkaline earth metal has a valency of 2 and a non-metal from group 16 has a valency of 2.

By exchange of valencies, the subscripts would be 2 and 2.

Therefore, the subscripts of the ionic compounds formed will be:

  • 1 and 1
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  • 1 and 2
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Learn more about about valency at: brainly.com/question/2284519

4 0
2 years ago
Hydrogen is a gas at a room temperature, but it is found with the alkali metals in group 1 (1A) on the periodic table. Which is
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In an experiment, you use a ruler to measure two plants. What can you do with the data you gather?
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Convert 86,750,000,000 to scientific notation
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PLEASE HELP!! A gas has a volume of 7.9 L at a temperature of 222. K and pressure of 877 mmHg. What is the new temperature (in C
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Answer:

82.97 K

Explanation:

Applying,

PV/T = P'V'/T'................ Equation 1

Where P = initial pressure, T = Initial temperature, V = Initial Volume, P' = Final pressure, V' = Final Volume, T' = Final Temperature.

Make T' the subject of formula in equation 1

T' = P'V'T/PV................ Equation 2

From the question,

Given: P = 877 mmHg = (877×0.001316) atm = 1.154 atm, T = 222.2 K, V = 7.9 L, P' = 0.327 atm, V' = 10.41 L

Substitute these values into equation 2

T' = (0.327×10.41×222.2)/(1.154×7.9)

T' = 82.97 K

Hence the new temperature is 82.97 K

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