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ollegr [7]
3 years ago
5

Ionic crystals can form when metallic atoms bond with nonmetallic atoms. Which of the following is an example of an ionic crysta

l?
A. NaOH
B. PBr5
C. Kr
D. NO2
Chemistry
1 answer:
Vanyuwa [196]3 years ago
6 0

NaOH is an example of an ionic crystal.

Option a

<h3><u>Explanation:</u></h3>

Sodium Hydroxide is a "white solid ionic compound" consisting of sodium cations Na+ and hydroxide anions OH^-. If we look at the crystal structure of NaOH, we can see that it has the combinations of ionic and covalent bonds. The bond that is shared between Oxygen ( O ) and Hydrogen ( H ) is the covalent bond.

The Sodium ( Na ) is bonded with an "ionic bond to the hydroxide part of the compound". NaOH is an ionic solid because it is formed by the combinations of metal and non-metal. When the crystal of NaOH is dissolved in water it dissociates into Na+ ions (which is ionic in nature) and OH^- ions which bonds ionically to the other compounds.

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3 years ago
Based on table n, uranium-238 and uranium-235 have different
Amanda [17]

According to table N, the isotopes uranium-238 and uranium-235 have different half lives.

<h3>What are radioactive nuclides?</h3>

Radioactive nuclides are those nuclides that are able to undergo radioactive decay. They have specific modes of decay that is peculiar to each isotope.

Hence, according to table N, the isotopes uranium-238 and uranium-235 have different half lives.

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4 0
2 years ago
Liquid octane CH3CH26CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. What is
weqwewe [10]

Answer:

Explanation:

2CH₃(CH₂)₆CH₃ + 25O₂ = 16CO₂ + 18H₂O.

2 moles                25 moles                18 moles

mol weight of octane = 114

72 g of octane = 72 / 114 = .6316 moles

144 g of oxygen = 144 / 32 = 4.5 moles of oxygen.

2 moles of octane reacts with 25 moles of oxygen

.6316 moles of octant will react with 25 x .6316 / 2 moles of oxygen

= 7.895 moles

So oxygen is the limiting reagent

25 moles oxygen produces 18 moles water

4.5 moles of water produces 18 x 4.5 / 25 moles of water

= 3.24 moles of water

= 3.24 x 18 grams of water

= 58.32 grams of water .

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3 years ago
The electronegativity values of Cl, F, H, O, and S are given below.
umka2103 [35]
D. H and S sense they seem more closer
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Rhizobium:
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Rhizobium: are nitrogen-fixing bacteria that live in the nodules of legumes which convert nitrogen in soil into nitrogen compounds. so the answer is all the above i hope this helps

7 0
4 years ago
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