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fredd [130]
3 years ago
14

48. Explain how atoms (ions) are held together in an ionic bond. Give an example of an ionic

Chemistry
2 answers:
zalisa [80]3 years ago
3 0

Answer:

By transfer of electron from electropositive to electronegative elements

Explanation:

Examples are NaCl, MgO, Al2O3

ICE Princess25 [194]3 years ago
3 0

Answer: Atoms (ions) are held together in an ionic bond through Electrostatic attraction

Explanation: Ions are atoms that lose or gain one or more electrons to become either positively or negatively charged, which are called anions and cations respectively. The cations are usually metals while anions are usually non-metals.

The bond (ionic bond) is formed when there is a transfer of valence electron(s) between the anion and the cation in order to obtain a full valence shell for both atoms.

Example of an ionic compound is NaCl.

Where: Na is the cation that looses a valence electron to become stable to Chlorine which is the anion that gained an electron to become stable.

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How many bonds and lone pairs are in the molecule SIH4?
lesantik [10]

Answer:

there are no valence electrons left over, so the molecule has four bond pairs and no lone pairs.

Explanation:

6 0
3 years ago
How many moles of helium are 8.84×1024 atoms of He?
insens350 [35]

Answer:

14.68 moles of He

Explanation:

To do this, just remember Avogadro's Constant or Avogadro's number. This constant tells us how many units ( in this case atoms) there are in a mole of ANY type of substance.

Avogadro's constant is 6.022140857 × 10²³ units per mole.

Now that we know how many atoms there are in 1 mole, we can use this as our conversion factor.

8.84 x 10²⁴ atoms of He →  moles of He

8.84\times10^{24} atoms of He\times\dfrac{1moleofHe}{6.022140857\times10^{23}atomsofHe}=14.68molesofHe

So the answer would be:

14.68 moles of He

4 0
2 years ago
The relative atomic mass of Chlorine is 35.45. Calculate the percentage abundance of the two isotopes of Chlorine, 35Cl and 37Cl
nata0808 [166]

Answer:

35Cl = 75.9 %

37Cl = 24.1 %

Explanation:

Step 1: Data given

The relative atomic mass of Chlorine = 35.45 amu

Mass of the isotopes:

35Cl = 34.96885269 amu

37Cl = 36.96590258 amu

Step 2: Calculate percentage abundance

35.45 = x*34.96885269 + y*36.96590258

x+y = 1  x = 1-y

35.45 = (1-y)*34.96885269 + y*36.96590258

35.45 = 34.96885269 - 34.96885269y +36.96590258y

0.48114731 = 1,99704989‬y

y = 0.241 = 24.1 %

35Cl = 34.96885269 amu = 75.9 %

37Cl = 36.96590258 amu = 24.1 %

3 0
2 years ago
What effect does light have on plant growth?
Varvara68 [4.7K]

Explanation:

Light intensity influences the manufacture of plant food, stem length, leaf color and flowering. Generally speaking, plants grown in low light tend to be spindly with light green leaves. A similar plant grown in very bright light tends to be shorter, better branches, and have larger, dark green leaves.

3 0
2 years ago
How to convert f to c without a calculator ​
nikdorinn [45]

Answer:

Without a calculator, there are many means to convert Celsius to Fahrenheit. Multiply the Celsius temperature by 1.8 and add 32 to get the Fahrenheit conversion With this method you get the exact temperature conversion degree.

Explanation:

7 0
3 years ago
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