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dexar [7]
3 years ago
5

Answer it answer it answer it

Chemistry
1 answer:
Archy [21]3 years ago
4 0

Answer:

A

Explanation:

A chemical change is when a new substance is created, which often has its own chemical properties, so A is the correct answer.

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When a fuel burns, what determines whether co or co^2 will be produced?
Galina-37 [17]
If it is incomplete or complete combustion. Normally the problems question with tell you.

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"In the presence of plenty of oxygen" is complete combustion
"Not enough oxygen present" is incomplete combustion
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3 years ago
Consider the set of isoelectronic atoms and ions a2–, b–, c, d+, and e2+. which arrangement of relative radii is correct?
faust18 [17]
The term isoelectronic atoms means that if the given atoms are neutral, they would have the same number of electrons, which is relative to their sizes. Ions with positive charges are called cations, losing electrons. On the other hand, ions with negative charges are called anions, gaining electrons. The more electrons that the atoms have, the bigger it is in size. Hence, the arrangement of the radii of the atoms would have to be,

      e²⁺, d⁺, c , b⁻, a⁻

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How many mL of a 0.250M sodium hydroxide solution is needed to neutralize 25.0 mL of a 0.430M sulfuric acid solution?
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3 years ago
What are the four most common problems that can arise in your motor design?
Nuetrik [128]

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A geologist is studying the shore along a river. She finds a pile of rocks at the base of a riverbank. These broken rock pieces
Dmitry_Shevchenko [17]

The scientist who studies the earth constituent like solids, gas and liquid is called a geologist. Weathering and erosion are the correct blanks.

<h3>What are weathering and erosion?</h3>

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Therefore, <u>weathering </u>and <u>erosion </u>are the correct blanks.

Learn more about weathering and erosion here:

brainly.com/question/11712593

7 0
2 years ago
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