3 years ago

Which of these pairs would form an ionic bond? K and Br

Chemistry

2 answers:

weeeeeb [17]3 years ago

8 0

Answer:

K and Br

Explanation:

I got it right duhhh

ZanzabumX [31]3 years ago

5 0

is there any other pairs

You might be interested in

. Mitosis allows one cell to grow and split into 2 new cells. Will those 2 new cells split again explain.

Finger [1]

Answer:

Yes

Explanation:

They continue to split and grow and split again until the organism that is carrying them dies.

Sorry I don't really know how to explain:(

4 0

3 years ago

1)Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent? (3 points)

Diano4ka-milaya [45]

Answer:

The first one is B, "Decreasing surface area."

Explanation:

This is because greater the surface area exposed, the more collisions that occur between the solvent and solute. I also just took the test myself and got it correct.

4 0

3 years ago

As with other ionic compounds, potassium bromate, KBrO3, dissociates into ions when it dissolves in water. If 13.8 g of KBrO3 is

chubhunter [2.5K]

Answer:

ΔH of dissociation is 38,0 kJ/mol

Explanation:

The dissociation reaction of KBrO₃ is:

KBrO₃ → K⁺ + BrO₃⁻ 

This dissolution consume heat that is evidenced with the decrease in water temperature.

The heat consumed is:

q = CΔTm

Where C is specific heat of water (4,186 J/mol°C)

ΔT is the temperature changing (18,0°C - 13,0°C = 5,0°C)

And m is mass of water (150,0 mL ≈ 150,0 g)

Replacing, heat consumed is:

q = 3139,5 J ≡ 3,14 kJ

13,8 g of KBrO₃ are:

13,8 g×(1mol/167g) = 0,0826 moles

Thus, ΔH of dissociation is:

3,14kJ / 0,0826mol = 38,0 kJ/mol

I hope it helps!

3 0

3 years ago

What do atoms form when they bond chemically?

V125BC [204]

They form molecules which can be in solution form if diluted in water, but some do form solutions on exposure to the atmosphere i.e they are deliquescent like pellets of sodium hydroxide

7 0

3 years ago

(Science) why is the 10g of shampoo is more dense than the 10kg of the same shampoo?

igor_vitrenko [27]

Grams (g) is much lighter than kilograms (kg)

6 0

3 years ago