3 years ago

Which of the following always occurs in a

Chemistry

1 answer:

vova2212 [387]3 years ago

6 0

Answer:

Explanation:All the other answers are wrong

You might be interested in

Why do metallic properties gradually change into non-metallic in the same period ?

erma4kov [3.2K]

Metallic and non-metallic properties
Non-metallic property increases across a period and decreases down the group due to the same reason due to an increase in nuclear attractive force.

I hope this helps

8 0

4 years ago

When the temperature is increased, what does not change?

gavmur [86]

Answer:

Pressure

Explanation:

They are both equal but do not change when the other does

3 0

3 years ago

What object has a mass of 10 grams and a volume of 2 mL

Elena-2011 [213]

Answer:

Destiny = 5 g/ml

Explanation:

The formula for density is d=

Knowing this, divide your mass by volume:

10 g / 2 ml = 5 g/ml

Final answer:

Destiny = 5 g/ml

3 0

3 years ago

Which mixture can be separated based on differences in particle size of the components?

Aleksandr [31]

Heterogenous mixtures can separates due to differences in size of components

7 0

3 years ago

The p K a of hypochlorous acid is 7.530 . A 60.0 mL solution of 0.103 M sodium hypochlorite ( NaOCl ) is titrated with 0.296 M H

IrinaVladis [17]

Answer:

pH of the solution after addition of 8 ml 0,296 molar HCl = 7.94

Explanation:

In this case buffer exist between hypochlorous acid HClO is a weak acid and its conjugate base hypochlorite ion ClO⁻ which are deliver to the solution by NaOCl ( sodium hypochlorite ).

The salt is completely dissociate

[NaOCl] = [ClO⁻]

Using Henderson equation to find pH of this buffer

pH = pKa + log $\frac{[Conjugate base]}{[Acid]}$

or, = 7.53 + log $\frac{60 X 0.103}{8 X 0.296}$

or, = 7.53 + 0.4

or, = 7.94

6 0

3 years ago