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Jobisdone [24]
2 years ago
12

Using the Reasoning Tool to Write a Scientific Argument

Chemistry
1 answer:
FinnZ [79.3K]2 years ago
8 0

yes your are right because water do have a stronger attraction

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In a molecule of calcium sulfide, calcium has two valence electron bonds, and a sulfur atom has six valence electrons. how many
Artemon [7]
Below are the choices that can be found elsewhre:

A. one 
<span>B. two </span>
<span>C. three </span>
<span>D. four </span>
<span>E. none

The answer is D which is four </span><span> Ca has given up 2 electrons to sulfur with six which makes 8 e-, or 4 pairs.

Thank you for posting your question here at brainly. I hope the answer will help you. </span>
3 0
3 years ago
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Using solubility guidelines, predict whether each of the following compounds is soluble or insoluble in water.
seraphim [82]
<span>1. MgBr2

Soluble.

Rule: all the binary compounds of the group 17 (different to F) with metals are solubles, except those formed with Ag, Hg (I) and Pb.

2. PbI2

Insoluble.

Rule: it is one of the exceptions stated in the rule above.

3. (NH4)2CO3

Soluble.

Rule: salts containing NH4(+) are soluble.

4. ZnSO4

Soluble

Rule: </span><span>This salt is not an exception to the rule that most sulfate salts are soluble. Important exceptions to this rule include BaSO4, PbSO4, Ag2SO4 and SrSO4

5. Sr(OH)2

Soluble (slightly soluble).

Rule: </span><span>Hydroxide salts of Group II elements (Ca, Sr, and Ba) are slightly soluble</span>
6 0
3 years ago
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1 One mole of an element contains which of the following?
lozanna [386]

Answer:

1) B    2) both a and c

5 0
3 years ago
What is the source of energy for the Sun?
nikitadnepr [17]

Answer:

Nuclear fusion

Explanation:

Nuclear fusion is the source of Sun's energy.. At the core where temperature and pressure are very high hydrogen atoms fuse into helium atom and release energy in the form of Gama rays.

3 0
3 years ago
Two easy uses of mixture​
lyudmila [28]

Explanation:

it helps to make juices.

It helps to make concentrated acid into dilute acid.

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3 years ago
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