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Ratling [72]
3 years ago
12

A pet owner dropped some new fish into a pond. Several species of fish lived in the pond, but within a few months, only members

of the new species survived. What best explains why this happened?
Chemistry
1 answer:
Daniel [21]3 years ago
8 0

Answer: the correct answer is : too many fish caused an imbalance in the ecosystem, so the food web was affected.

Explanation:

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Which cannot be chemically broken down into simpler substances?
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Answer:

B.

Explanation:

elements

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2 years ago
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pickupchik [31]

Answer:

A. True

B. False

Explanation:

Reaction between hypochlorous acid and ammonia does not yields a Ph value of 7.00 , this value is defined to water and no other reaction can yield exactly this Ph value. The acid reaction will give a Ph value below 7 while a base reaction will give Ph value of above 7.

7 0
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Between reaction of magnesium powder and lead oxide which is oxidized in the reaction and which is oxidizing agent
GuDViN [60]

Answer:

Mg is oxidized and Pb is the oxidizing agent

Explanation:

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3 years ago
Of the molecules below, only ________ is polar.a. SiCl4 b. CH4 c. CCl4 d. SeF4
ludmilkaskok [199]

Answer:

SeF4 is a polar molecule

Explanation:

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The electronegative atoms of flourine in SeF4 are not evenly distributed and kind pairs of electrons are on the central atom.

6 0
3 years ago
What is the name given to the ions of the halogens on the periodic table?
WARRIOR [948]

Answer:

halides

Explanation:

This is one electron away from having a full octet of eight electrons, so these elements tend to form anions having -1 charges, known as halides: fluoride, F-; chloride, Cl-, bromide, Br-, and iodide, I-. In combination with other nonmetals, the halogens form compounds through covalent bonding.

7 0
3 years ago
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