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sergiy2304 [10]

2 years ago

5

How do you think the arrangement of particles in different states of matter is related to the properties of those states of matt

er?

1 answer:

Scilla [17]2 years ago

6 0

Answer:

I don't know this word haha

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What is the pH of a solution that has a [H+] = 0.010 mol/L?

Serjik [45]

Answer:

pH = 2

A 0.010 M solution of hydrochloric acid, HCl, has a molarity of 0.010 M. This means that [H+] = 1 x 10-2 M. The pH of this aqueous solution of H+ ions is pH = 2

hope this helps :3

5 0

2 years ago

Considering the following precipitation reaction: Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq),

patriot [66]

Answer: The ions which are not spectator ions are $Pb^{2+}$ and $I^-$

Explanation:

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

The given chemical equation is:

$Pb^{2+}(aq)+NO_3^-(aq)+2K^+(aq)+2I^-(aq)\rightarrow PbI_2(s)+2K^+(aq)+2NO_3^-(aq)$

The ions which are present on both the sides of the equation are $K^+$ and $NO_3^-$ and are spectator ions.

Thus the net ionic equation is:

$Pb^{2+}(aq)+2I^-(aq)\rightarrow PbI_2(s)$

Hence, the correct answer is $Pb^{2+}$ and $I^-$

5 0

3 years ago

Read 2 more answers

Calculate the value of [CH3OH][CO][H2]2 when all concentrations are 2.4. Keep in mind that the reaction may not be at equilibriu

NikAS [45]

Explanation:

The given reaction will be as follows.

$CO + 2H_{2} \leftrightharpoons CH_{3}OH$

So, equilibrium constant for this equation will be as follows.

$K_{c} = \frac{[CH_{3}OH]}{[CO][H_{2}]^{2}}$

As it is given that concentration of all the species is 2.4. Therefore, calculate the value of equilibrium constant as follows.

$K_{c} = \frac{[CH_{3}OH]}{[CO][H_{2}]^{2}}$

= $\frac{2.4}{2.4 \times (2.4)^{2}}$

= 0.173

Thus, we can conclude that equilibrium constant for the given reaction is 0.173.

3 0

3 years ago

Because sucrose is hygroscopic, how should it be properly stored in a cupboard

kirza4 [7]

Sucrose is stored in dry and closed container, sealed properly.

Explanation:

Sucrose is nothing but the table sugar which we use daily in our life.
Sucrose is formed by the combination of fructose and glucose so, it called a disaccharide because two monosaccharides are converted to form sucrose.
It is a hygroscopic substance. The hygroscopic substance is which is easily vulnerable to water absorption. They tend to absorb water if they are being exposed to humid places.
Hence, it should be kept in a dry and close container, sealed properly.

4 0

3 years ago

What is missing from this graph?<br><br> A. axis labels<br> B. a trendline<br> C. a title

Iteru [2.4K]

Answer:

Axis Labels

Explanation:

The axis labels are usually located on the x and y axis. This graph however is missing those.

hope this helps!

7 0

3 years ago