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3 years ago

What does a metal need to do in order to form a cation

Chemistry

2 answers:

Andrew [12]3 years ago

6 0

<span>A metal atom must give away electrons in order to form a cation (positively charged ion). </span>

frutty [35]3 years ago

4 0

A metal must lose one or more electrons in order to become a cation

Hope this helps

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Show whether the following solutes are soluble in each solvent, and the process of dissolution of each, and their weak bonds. (N

Alexeev081 [22]

Answer:

I don't really understand this...

5 0

3 years ago

PLS HELPP

salantis [7]

b. Pressure

Explanation:

Pressure is a physical effect that can change the boiling point of a substance.

Pressure is the force per unit area on a body.

A substance will boil when the vapor pressure of its heated molecules is greater than the atmospheric pressure.
The higher the atmospheric pressure, the higher the temperature and energy required to boil a substance.
At high altitude, the atmospheric pressure is low and the boiling point of substances is lower.

learn more:

Boiling point brainly.com/question/8567736

#learnwithBrainly

5 0

3 years ago

Calculate the freezing point of a solution 1.25 g benzene (C6H6) in 125 g of chloroform (CHCl3).

posledela

Answer:

The freezing point for the solution is -64.09°C

Explanation:

This problem can be solved, by the freezing point depression. This colligative problem shows, that the freezing point of a solution is lower than the freezing point of pure solvent.

ΔT = Kf. m

ΔT = T° freezing pure solvent - T° freezing solution

Kf = Cryscopic constant, for chloroform is 4.68

T°freezing pure solvent = -63.5°C

m is mol/kg of solvent → molality

Let's determine the moles of benzene

1.25 g / 78 g/mol = 0.0160 mol

Let's convert the mass of solvent to kg

125 g . 1kg / 1000 g = 0.125 kg

m = 0.0160 mol / 0.125 kg → 0.128 m

Let's go to the formula to replace the data

-63.5°C - T° freezing solution = 4.68 °C/m . 0.128 m

T° freezing solution = - (4.68 °C/m . 0.128 m + 63.5°C)

T° freezing solution = - 64.09°C

3 0

3 years ago

5.40 g B determine the number of atoms

sdas [7]

Atomic mass Boron ( B ) = 10.811 u.m.a

10.811 g -------------- 6.02x10²³ atoms
5.40 g ----------------- ?? atoms

5.40 x ( 6.02x10²³) / 10.811 =

3.0069x10²³ atoms

4 0

3 years ago

A chemical reaction produces 653 550 kj of energy as heat in 142.3min. calculate the rate of energy transferred in kj per minute

miskamm [114]

We have the value of

Total energy produced in the chemical reaction=653 550 KJ

Time needed=142.3min

To calculate the rate of energy transfer, that is the amount of energy produced per minute.

Rate of energy transfer= $\frac{Total energy produced}{Time needed}$

= $\frac{653 550}{142.3}$

=4592.76 KJ min⁻¹

So, the rate of energy transfer is 4592.76 KJ min⁻¹.

6 0

3 years ago