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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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Phosphorus-32 has a half-life of 14.3 days. how many grams of phosphorus-32 remain after 71.5 days if you start with 4.00 grams?
almond37 [142]
Answer : 0.125 g

Explanation : If you are calculating the half life of P-32 which has half life of 14.3 days and you want to calculate how many grams are remaining after 71.3 days if yo are starting with 4 g?

starting you can calculate the number of half life P-32 undergoes first,

which is  n = 71.5 / 14.3 = 5 days.

now, to calculate the remaining mass,

m_{remaining}  = (\frac{initial mass}{2 X 2X 2X2 X2 } ) = (\frac{initial mass}{ 2^{5} } )

= = \frac{4 g }{ 2^{5} } = 0.125 g
7 0
3 years ago
What parts of a circuit is a conductor?
netineya [11]

Answer:

copper

Explanation:

These are usually copper wires with no insulation. They make the path through which the electricity flows. One piece of the wire connects the current from the power source (cell) to the load

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3 years ago
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drek231 [11]

Answer:

Atom is a particle that defines a chemical element, and is normally surrounded by 2 electrons.

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3 years ago
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SashulF [63]

This is not the best way to organize a periodic table because two elements might have similar atomic mass.

<h3>What is periodic table?</h3>

Periodic table is a chart in which arrangement of chemical elements are done.

In the early periodic table elements are arranged on the basis of their atomic masses, while after sometime Moseley arranged the periodic table on the basis of atomic number as he proposed that properties of an element is justified on the basis of number if electrons.

And mass of two substances may be same so it is difficult to differentiate between them.

Hence, two elements might have similar atomic mass.

To know more about periodic table, visit the below link:

brainly.com/question/14514242

#SPJ1

6 0
2 years ago
Need help with this please
Ivanshal [37]

Answer:

-3.06 is the overall voltage produced

Explanation:

Potassium and Tin are connected in an electrochemical series.

In a series circuit, the resultant voltage is equal to the sum of voltage drops at all points in the circuit.

Here,

The voltage drop at potassium = -2.92

The voltage drop at Tin = -0.14

The net voltage

= -2.92 -0.14 \\= -3.06

4 0
3 years ago
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