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Lina20 [59]
3 years ago
11

Maria examines a mixture that appears to be the same throughout. However, when she looks at a sample using a magnifying lens, sh

e can see small droplets of liquid surrounded by another liquid. Which conclusion best fits her observations? The mixture is a solution because it has the same appearance throughout the sample. The mixture is a suspension because it is composed of two different-appearing substances. The mixture is a heterogeneous mixture because one liquid is dissolved in the other. The mixture is a colloid because two different substances can be seen in a small sample.
Chemistry
2 answers:
garik1379 [7]3 years ago
6 0

Answer is: The mixture is a colloid because two different substances can be seen in a small sample.

Colloid is microscopically insoluble particles that are suspended throughout another substance. For example whipped cream and gelatin.

For example, in the presence of an emulsifying agent, a mixture of oil and water becomes a colloidal dispersion.

Colloidal dispersion otherwise colloid is a system, in which discrete particles, droplets or bubbles of a dispersed phase (in this case oil), whose size at least in one dimension is in the range from 1 to 1000 nm are distributed in the other, usually continuous phase - dispersion medium (in this case water) differing from the dispersed phase in composition or state of aggregation.

Stella [2.4K]3 years ago
5 0
<span>The mixture is a colloid because two different substances can be seen in a small sample.</span>
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1) How old is a bone in which the Carbon-14 in it has undergone 8 half-lives?
gladu [14]

1) How old is a bone in which the Carbon-14 in it has undergone 8 half-lives?

Using the graph form the picture you count 8 times the halving of C¹⁴ and you arrive at 45600 years.

2) In the process of radiocarbon dating, the fixed period of radioactive decay used to determine age is called the half-life.

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What the problem is telling you is that at 276 days only 25% original sample remains. If you divide the number of days by two the quantity of original sample will be multiplied by two, and you will have 138 days and 50% of original sample. This is the answer because the the half-life of a isotope is the time in which 50% of original quantity of radioactive atoms will disintegrate.

3 0
3 years ago
Match the era on the left with its characteristic on the right.
Troyanec [42]

Answer:

Mesozoic - the era before the current one

Cenozoic - the current era

Paleozoic - when life first flourished

Precambrian - the first era

Explanation:

The Precambrian is the earliest part of Earth's history, the first era. It's named like this because it preceded the Cambrian - the first period of the Phanerozoic eon, which is the current geologic eon. It lasted from the beginning of Earth (about 4.6 billion years ago) to the beginning of the Cambrian Period (about 541 million years ago).

Paleozoic is an era that lasted from about 541 to about 252 million years ago. During this time, life began to flourish.

Mesozoic is an era that lasted from about 252 to 65 million years ago. It's the era that took place before the current one - the Cenozoic.

4 0
3 years ago
The original gas volume in a balloon is 50.mL when the pressure is 1.00 atm. Predict the new gas volume when the pressure is 3 t
damaskus [11]
According to Boyle's law, Volume is indirectly proportional to the pressure.

So, P1V1 = P2V2

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V2 = 50/3 = 16.67 mL

In short, Your Answer would be: 16.67 mL

Hope this helps!
5 0
3 years ago
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