All categories

4 years ago

What is an ionic bond?

2 answers:

6 0

D. a bond in which electrons are transferred

Ionic bonding is the complete transfer of valence electron(s) between atoms

Andrei [34K]4 years ago

5 0

An ionic bond is a D. a bond in which electrons are transferred

hope this helps

You might be interested in

A solution is made by mixing equal masses of methanol, CH 4 O , CH4O, and ethanol, C 2 H 6 O . C2H6O. Determine the mole fractio

wariber [46]

Answer: The mole fraction of methanol

Xmeth= 0.59

The mole fraction of ethanol

Xeth = 0.41

Explanation:

Mole fraction of a component can be determined by:

Xi = moles of i / total moles of the components the components

Where i indicates the component

An equal mass of 100.0g is assumed for both methanol and ethanol

Molar mass of Methanol (CH4O)

= (1*12) + (4*1) +(1*16) =32g/mol

Mole of Methanol = mass of methanol /molar mass of methanol

=100/32 = 3.13mol.

Molar mass of ethanol ( C2H6O)

= (2*12)+(6*1)+(1*16) = 46.0g/mol

Mole of ethanol = 100/46

= 2.17mol.

Mole fraction of methanol (Xmeth)

= moles of methanol / total moles

Xmeth = 3.13/(3.13+2.17)

Xmeth = 0.59

Mole fraction of ethanol (Xeth)

= moles of ethanol /total moles

= 2.17/((3.13+2.17)

Xeth= 0.41

5 0

3 years ago

If 20. 3 grams of an aqueous solution of iron(ii) chloride, fecl2, contains 2. 71 grams of iron(ii) chloride, what is the percen

Hatshy [7]

If 20. 3 grams of an aqueous solution of iron(ii) chloride contains 2. 71 grams of iron(ii) chloride, then percentage by mass of iron(ii) chloride in the solution is 13.34%

Calculation,

Given:

mass of an aqueous solution of iron(ii) chloride = 20. 3 grams

mass of iron(ii) chloride = 2. 71 grams

The percentage by Mass is equal to percentage of mass of solute present in total mass of solution. It is also known as Mass percentage.

percentage by Mass = 100× 2. 71 grams/20. 3 grams = 13.34%

Hence, the percentage by mass of iron(ii) chloride in the solution is 13.34% .

to learn more about mass percentage

brainly.com/question/27108588

#SPJ4

7 0

2 years ago

What mass of K2CO3 is needed to prepare 200. mL of a solution having a potassium ion concentration of 0.150 M

I am Lyosha [343]

Answer:

2.07 grams

Explanation:

We know that the molecular mass of $K_2CO_3$ is 138.205 grams.

In order to find out how many grams we need to make 200 mL having a potassium ion concentration of 0.150, we need to find the number of moles first.

M = moles / liters

0.150 = x / 0.200

x = 0.03 moles

Since there are 2 potassium atoms in each molecule of $K_2CO_3$ so we will divide this number by half and multiply it by the molecular mass.

0.03/2 = 0.015 moles

Mass of $K_2CO_3$ needed = 0.015 × 138.205 = 2.07 grams

4 0

3 years ago

The saltwater is a homogeneous or a heterogeneous mixture

ddd [48]

Homogeneous because it is unable to be distinguished of the components Water and Salt

5 0

4 years ago

Aluminum has a specific heat of 0.902 j/gC. How much heat is lost when a piece of aluminum with a mass of 23.984 g cools from a

Marizza181 [45]

Answer:

Q = - 8501.99 j

Explanation:

Given data:

Specific heat of Al = 0.902 j/g.°C

Heat lost = ?

Mass of sample = 23.984 g

Initial temperature = 415°C

Final temperature = 22°C

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 22°C - 415°C

ΔT = -393°C

Q = m.c. ΔT

Q = 23.984 g× 0.902 j/g.°C × -393°C

Q = - 8501.99 j

8 0

3 years ago