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NISA [10]
3 years ago
10

Giving brainliest to right answer

Chemistry
2 answers:
GrogVix [38]3 years ago
4 0

Answer:

B. -5°C Is most likely that outdoor temperature

Explanation:

Because if it was 30°C it most likely wouldn't have snow. Choices C and D look like temperatures...

Anvisha [2.4K]3 years ago
3 0

Answer:

Answer:

... it's b - 5°C..........

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Students in a lab used a hot plate to boil water. Which of the following illustrations best represents the change in the movemen
Digiron [165]

The second illustration is the best representation of the change in the movement of particles as the temperature of the water changes.

<u>Explanation:</u>

The second option perfectly represents the boiling of water. As when the temperature is increased, the water molecules gain energy to move faster, thus their kinetic energy of the atoms will be more. This will lead to more freely movement of all the atoms of the water.

And as boiling leads to transformation from liquid state to gaseous state, so the increase in the distance between atoms and molecules occurs in the gaseous state. Thus, the second illustration is best suitable for representing the boiling of water.

As on increasing temperature of the water, the distance between the molecules is increasing in the second illustration while the other illustration shows the decrease in the distance between the molecules. So, the second illustration is the best representation of the change in the movement of particles as the temperature of the water changes.

6 0
3 years ago
How many electrons should be shown in the lewis symbol for hydrogen?
fredd [130]
999,956,000,000,000,000
6 0
3 years ago
What is the molecular shape of hydrogen?
anzhelika [568]
The eletron pairs repel each other in a tetrahedral shape.
3 0
3 years ago
What does the principle of faunal succession state?
irina1246 [14]

<u>Answer:</u>

The principle of faunal succession state <em>"Specific groups of organisms have followed one another in a definite sequence through the Earth's history."</em>

<u>Explanation:</u>

Faunal succession basically means is that the fossils of the flora and fauna of different eras can be found in a specific order and never in the same strata. This allows the geologists to determine the time sequence and also to identify the various strata by dating the fossils that are found in each of them. The older version of fossils are found beneath the fossils of modified versions. For example fossils of simple feathers that cannot support flight are found to be succeeded by fossils of more complex feathers.

4 0
3 years ago
The time necessary for the decay of one- half sample of a radioactive substance is a _____. mass defect daughter half life nucli
Mazyrski [523]

Answer: half life

Explanation: Radioactive decay follows first order kinetics and the time required for the decay of a radioactive material is calculated as follows:

t=\frac{2.303}{k}\hspace{1mm}log\frac{x}{a}

t= time required

k= disintegration constant

x= amount of substance left after time t

a= initial amount of substance

when one half of the sample is decayed, one half of the sample remains and t can be represented as t_{1/2}

at t= t_{1/2}, x=\frac{a}{2}

t_{1/2}=\frac{2.303}{k}\hspace{1mm}log\frac{a/2}{a}

t_{1/2}=\frac{0.693}{k}

3 0
3 years ago
Read 2 more answers
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