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Hoochie [10]
4 years ago
8

An ionic bond forms between atoms of​

Chemistry
1 answer:
Svetllana [295]4 years ago
6 0
Ionic bonds form between nonmetals and metals.

The reason ionic bonds are formed is because nonmetals and metals usually have high electronegativities, which essentially means that metals pull on nonmetals' electrons.
When a metal takes an electron from a nonmetal, the metal becomes negatively charged and the nonmetal becomes positively charged. Because opposite charges attract, the two atoms will stick together, thus forming an ionic bond

-T.B.
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Calculate the freezing point of a solution that contains 1.75 mol of nacl dissolved in 1.00 kg of water. be sure to enter the ne
matrenka [14]
In order to calculate the new freezing point, we must first find the depression. This is given by:

ΔT = Kf * b * i

where Kf is the cryscopic constant for the solvent, b is the molarity of the solution in moles per kilogram and i is the van't Hoff factor, which tells us how many ions will be released when a substance is dissolved. 

Kf = 1.853, b = 1.5, i = 2 (Na⁺ and Cl⁻)

ΔT = 5.5 °C

The new freezing point will be 0 + 5.5
5.5 °C
3 0
3 years ago
Look at the wave in the picture. If it has a wavelength of 2 cm, how far apart are points A and B? How do you know?
Harlamova29_29 [7]

Answer:

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8 0
3 years ago
You have a 100.0mL graduated cylinder containing 50.0mL of water. You drop. 193g piece of brass into the water. To what height d
galben [10]

Answer:

Rise in volume = 72.7 mL

Explanation:

Given data:

Volume of water = 50.0 mL

Mass of brass piece = 193 g

Rise in volume = ?

Solution:

First of all we will calculate the volume of brass.

d = m/v

d = density

m = mass

v = volume

8.5 g/mL = 193 g/ v

v = 193 g/ 8.5 g/mL

v = 22.71 mL

Rise in volume = volume of water + volume of brass

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Rise in volume = 72.7 mL

7 0
3 years ago
Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [HCl]eq = 0.13 M, [HI]eq
VLD [36.1K]

Answer:

3.53*10^{-32}

Explanation:

K_{c} =\frac{[HI]^{2}[Cl_{2}] }{[HCl]^{2}}=\frac{[5.6*10^{-16} ]^{2} [0.0019]}{[0.13]^{2} }=3.53*10^{-32}

Kc is the equilibrium constant calculated as the ration of products over reactants with their stoichiometric coefficients as their exponents. So the balanced chemical equation is important. Solids do not form part of the Kc expression, they do not affect the equilibrium constant which is why Iodine is not part of the calculations

8 0
4 years ago
In the laboratory you are asked to make a 0.114 m ammonium sulfide solution using 255 grams of water. How many grams of ammonium
OleMash [197]

Answer:

The mass of (NH₄)₂S we may add to the solution is: 1.98 g

Explanation:

We interpret the given data:

0.114 m → moles of solute in 1kg of solvent

255 g → the mass of solvent

As we have 0.114 moles of solute ((NH₄)₂S) in 1kg, we must determine the moles in our mass of solvent (255 g H₂O)

We convert the mass of solvent to kg → 255 g . 1 kg/1000g = 0.255 kg

Now we can determine the moles of solute, we used:

0.114 mol/kg . 0.255 kg = 0.02907 moles

If we convert the moles to mass → 0.02907 mol . 68.1g /1mol = 1.98 g

3 0
3 years ago
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