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yKpoI14uk [10]
2 years ago
9

Which of the following is true about metallic bonding?

Chemistry
2 answers:
Anna [14]2 years ago
8 0

Answer:

I think the answer is option B

Rasek [7]2 years ago
5 0
C is correct because when you put them together it forms nonmetallic elements/things.
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A beaker contains 20.0 ml of a 50.0 g/L solution. What will the new concentration be if you add 40.0 mL of water?
Ronch [10]

Answer:

moles SO42- = 0.0500 L x 0.20 M=0.010

moles Ba2+ = 0.0500 L x 0.10 M = 0.0050

Ba2+ + SO42- = BaSO4 (s)

moles SO42- in excess = 0.010 - 0.0050=0.0050

total volume = 100 mL = 0.100 L

[SO42-]= 0.0050/0.100= 0.050 M

[Na2SO4] = 2 /2 = 1 M

moles Na2SO4 = 2 M x 0.500 L = 0.500

mass Na2SO4 = 0.500 x 142 g/mol=71.0 g

moles MgBr2 = 46 /184 =0.25

moles Br- = 0.25 x 2 = 0.50

[Br-]= 0.50 / 0.50 L = 1 M

8 0
3 years ago
If an object has a mass of 42 kg and a volume of 2m3 what is its density
ElenaW [278]

Answer:

Mass = 42 kg

Volume = 2 m^3

By using formula = Density = Mass/Volume

= 42/2

= 21/1

= 21

= 21 m^3

5 0
3 years ago
In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoCl42-. Co2 (aq) is pink and CoCl42-(aq)
kolezko [41]

Answer:

1. This reaction is <u>(A) Exothermic .</u>

2. When the temperature is decreased the equilibrium constant, K: <u>(A) Increases</u>

3.When the temperature is decreased the equilibrium concentration of Co2:<u> (A) Increases</u>

Explanation:

CoCl4^2-(aq)  Co_2+(aq) + 4Cl^-(aq)

1. The pink color predominates at low temperatures, indicating that the commodity is preferred.

This is a reaction that is <u>exothermic.</u>

2. As the decrease in the temperature , the equilibrium constant , K ;

      equilibrium constant = \frac{product}{reactant} =\frac{[CO^2^+][Cl^-^4]}{CoCl^2^-_4}

As the temperature drops, the concentration ofCl^- and CO^2^+ rises, and K rises as well , thus it <u>increases </u>.

3. The equilibrium concentration of CO^2^+ decreases as the temperature decreases:

When the temperature is lowered, the equilibrium shifts to the right , that is it <u>increases.</u>

4 0
3 years ago
Thermal Energy and Kinetic Molecular Theory Quick Check
Zepler [3.9K]

The Kinetic Molecular Theory is a  scientific model that states atoms in a compound are found in a constant state of motion (movement).

<h3>What is the Kinetic Molecular Theory?</h3>

The Kinetic Molecular Theory is a  scientific model that states atoms in a compound are found in a constant state of motion (movement).

Thermal energy refers to the movement of particles and therefore both concepts are interrelated.

In conclusion, the Kinetic Molecular Theory is a  scientific model that states atoms in a compound are found in a constant state of motion (movement).

Learn more about the Kinetic Molecular Theory here:

brainly.com/question/134712

#SPJ1

4 0
1 year ago
Chicken noodle soup is best described as?
IceJOKER [234]
Well it should be easy in my opinion ill just say its chemical energy because the chicken and the broth and noodles and vegies give you lots of energy exspecially if your gonna have seconds ;)
5 0
3 years ago
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