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slava [35]
4 years ago
9

What is a bond between a positive and a negative ion called?

Chemistry
2 answers:
Nadusha1986 [10]4 years ago
5 0

Answer is: ionic bond.

Ionic bond is the electrostatic attraction between oppositely charged ions, cations (positive ions) and anions (negative ions).

For example compound magnesium chloride (MgCl₂) has ionic bond. Magnesium transfers two electrons, form positive cation Mg²⁺, to chlorine, form anion Cl⁻.

Another example, potassium bromide (KBr) is ionic solid, it has ionic bonds.

Marizza181 [45]4 years ago
3 0
I think they are called ionic bonds.
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A 0.753 g sample of a monoprotic acid is dissolved in water and titrated with 0.250 M NaOH. What is the molar mass of the acid i
Alexeev081 [22]

Answer:

MM_{acid}=140.1g/mol

Explanation:

Hello,

In this case, since the acid is monoprotic, we can notice a 1:1 molar ratio between, therefore, for the titration at the equivalence point, we have:

n_{acid}=n_{base} \\\\V_{acid}M_{acid}=V_{base}M_{base}\\\\n_{acid}=V_{base}M_{base}

Thus, solving for the moles of the acid, we obtain:

n_{acid}=0.0215L*0.250\frac{mol}{L}=5.375x10^{-3}mol

Then, by using the mass of the acid, we compute its molar mass:

MM_{acid}=\frac{0.753g}{5.375x10^{-5}mol} \\\\MM_{acid}=140.1g/mol

Regards.

7 0
3 years ago
¿Quién estableció el concepto moderno de elemento?
Zina [86]

Answer:

Robert Boyle

Explanation:

En muchos textos se suele considerar a Robert Boyle como el científico que introdujo en la Química un concepto de elemento diferente al empleado por los aristotélicos o por los alquimistas y que sirvió de antecedente al que formulara Lavoisier en 1789.

7 0
3 years ago
Structural formula for:<br>5 - methyl hept - 3 - enal​
Oksanka [162]

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5 0
3 years ago
How many grams of carbon dioxide are created from the complete combustion of 21.3 L of butane at STP?
Bond [772]

Answer:

165.5 g of CO2

Explanation:

We must first put down the balanced reaction equation:

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From the reaction equation, one mole of butane occupies 22.4 L hence we can establish the stoichiometry of the reaction thus:

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Therefore 21.3 L of butane will create 21.3 × 174/22.4 = 165.5 g of CO2

3 0
4 years ago
How many joules of heat are needed to change 50.0 grams of ice at -15.0 °C to steam at 120.0 °C?
Ilya [14]

Answer:

153.7kJ

HOPE this helps!!! :)

8 0
2 years ago
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