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gogolik [260]
3 years ago
8

Pl help me, i need a good grade on this.

Chemistry
1 answer:
Blizzard [7]3 years ago
8 0
1. Option A. Temperature and Salinity
2. Option D. (I think)
3. Option D.
Hope your test goes well!
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6. Geologists in Egypt and Ethiopia are comparing rock samples from rocks
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Answer:

Both are different.

Explanation:

Both rocks are different from one another because both formed from different types of rocks. Rock A was formed from small pieces of rock while on the other hand, Rock B was formed from liquid  rock so they both have different sources of rocks from which they were formed. Forming at the same time does not show that they are similar to each other, it is their source which decides that they are similar or different.

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Which of the following solar phenomena is thought to cause short-term climate changes
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<span>sunspots, hope this helps!!!!</span>
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Using your periodic table, determine the electron configuration of Barium ion, Ba+2
seraphim [82]

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Explanation:

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2 years ago
If a compound contains a poly atomic ion then what type of compound is it A. Convalent Compound B. Ionic Compound
den301095 [7]

Answer:

B. Ionic Compound

Explanation:

An ionic compound is that compound which contains a positively charged ion called CATION and a negatively charged ion called ANION. The cation loses or transfers electrons to the anion, hence, making the former (cation) positive and the latter (anion) negative.

A polyatomic ion is an ion that contains more than one type of atom e.g OH-, NO3²-, CO3²- etc. A polyatomic ion usually has an overall charge formed from the charges of the individual atoms that makes it up. For example, in OH-, the overall charge is -1.

Since a polyatomic ion can have an overall positive or negative charge, it must enter a reaction with another ion that complements it i.e. a negative polyatomic ion will react with a positive ion to neutralize its charge. Hence, this forms an IONIC COMPOUND. This is why most compounds with polyatomic ions are IONIC COMPOUNDS.

For example, CaCO3 is an ionic compound formed when Ca²+ (cation) reacts with the polyatomic anion: CO3²-

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He substance, cocl2, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist ai
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Cobalt chloride

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It is a molecule formed of one Cobalt atom, and two Chlorine atoms.

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