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3 years ago

9

When will oppositely charged atoms stick together?

2 answers:

algol [13]3 years ago

7 0

Answer:

The electrostatic force of attraction present between the oppositely charged atoms or ions makes them stick together. Generally, atoms are electrically neutral (have equal number of electrons and protons). However, if an atom loses or gains an electron it will become a charged atom or ion.

tangare [24]3 years ago

6 0

Answer:

in an ionic bond.

Explanation:

i hope thats right

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Iron has a density of 7.86 g/cm3. Calculate the volume (in dL) of a piece of iron having a mass of 4.07 kg . Note that the densi

elena-s [515]

Answer:

The volume of the piece of iron is 5.18dL.

Explanation:

The density (ρ) is equal to the mass (m) divided the volume (V).

$\rho = \frac{m}{V}$

If we rearrange it, we have:

$V=\frac{m}{\rho }$

To express the volume in dL we will need the following relations:

1 dL = 0.1 L
1 kg = 10³ g
1 cm³ = 1 mL
1mL = 10⁻³L

Then,

$\rho = \frac{7.86g}{cm^{3} } .\frac{1cm^{3} }{1mL} .\frac{1mL}{10^{-3}L } .\frac{1kg}{10^{3}g } =7.86kg/L$

Finally,

$V=\frac{m}{\rho }=\frac{4.07kg}{7.86 kg/L} =0.518L.\frac{1dL}{0.1L} =5.18dL$

5 0

4 years ago

Read 2 more answers

How many moles are in 89 liters of water vapor?

Brut [27]

Answer:

4 moles

Explanation:

A mole is equal to 6.02214076 × 1023 of any chemical unit (atoms, molecules, ions)

To find number of moles in 89 litres of water vapor use the following formula:

1 mole = 22.4 L

That is 1 L = $\frac{1}{24}$ mole

Volume of water vapor = 89 litres

Therefore,

Number of moles in 89 litres = $\frac{89}{24}=3.7$ ≈ 4 moles

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3 years ago

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Nana76 [90]

Answer:

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Explanation:

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4 years ago

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