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barxatty [35]
3 years ago
6

Chemical change example

Chemistry
1 answer:
lord [1]3 years ago
3 0

Answer: burning paper

Explanation:

The paper burns in air to form smoke and ash. which makes it a chemical change.

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Which notation represents the largest atomic radius?<br><br> Cl<br><br> F<br><br> F−<br><br> Cl−
hichkok12 [17]

Answer:

Cl⁻

Explanation:

Definition of atomic radii

The atomic radius is the distance between center of two bonded atoms.

Trend along period:

As we move from left to right across the periodic table the number of valance electrons in an atom increase.The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases.

Trend along group:

In group by addition of electron atomic radii increase from top to bottom due to increase in atomic number and addition of extra shell.

In this way Cl⁻ will have the largest atomic radii because one extra electron is added and its atomic number is already greater than fluorine.

5 0
4 years ago
Which statement best explains the type of bond that will form between two elements from group 6A in the model?
vovangra [49]

Answer:

D is the answer

Like my answer

8 0
3 years ago
The Texas high plains region does not revive much rain. It is reasonable to predict that this region, compared to other ecoregio
mixas84 [53]

Answer:

Less soil erosion

Explanation:

Due to the low amount of rainfall in this region, it is easier to say that the region compared to other ecoregion will suffer less soil erosion.

Erosion is usually the washing away of the top layer of the soil. Rainfall is one of the most important element that causes erosion. Surface runoff for an extended period of time can remove the topmost layer of the earth on which plant can grow. This starves the soil of its rich nutrients and minerals.

8 0
3 years ago
Colby wants to learn more about the feeding habits of ants.
emmasim [6.3K]

Answer:

a. form a hypothesis, conduct an experiment, record data, make a conclusion

Explanation:

Performing scientific investigations involved following the SCIENTIFIC METHOD, which is a rule or guideline followed in order to discover knowledge about natural phenomena. The scientific method has been divided into steps viz:

- Making observation/asking questions: In this case, the problem is HOW ANTS FEED.

- Formulating hypothesis: The hypothesis is a testable explanation given to solve the asked question.

- Testing hypothesis: The hypothesis must be able to be tested via conducting an experiment.

- Analyze result: The results of the test is recorded and analysed as data.

- Make conclusions: The conclusion either accepts or rejects the hypothesis depending on the result of the experiment.

Therefore, based on this; form a hypothesis, conduct an experiment, record data, make a conclusion are the steps Colby should take to best study the feeding patterns of ants

6 0
3 years ago
As the sun heats the surface of the ocean, two layers of water result. What separates the layers.
pychu [463]

Question:<u> As the sun heats the surface of the ocean, two layers of water result. What separates the layers.?</u>

Answer: <u>The Thermocline </u>

<em>Hope this helps!.</em>

<em>~~~~~~~~~~~~~~~~~~~</em>

<em>~A.W~ZoomZoom44</em>

4 0
4 years ago
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