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USPshnik [31]
3 years ago
11

An unknown substance turns methyl orange solution red. This shows that the substance is a base. is water. is an acid. is an alka

loid.
Chemistry
1 answer:
Sonbull [250]3 years ago
4 0

Answer:

Acid.

Explanation:

Acid turns methyl orange solution red.

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Write a net ionic equation for the reaction that occurs when excess hydroiodic acid and nickel(II) sulfide are combined.
tiny-mole [99]

Explanation:

Step 1: Write the balanced "molecular" equation:

2HI(aq) + NIS (s) → NiI₂(aq) + H₂S(g)

Step 2: H₂S is written in molecular form. Consult the solubility and net ionic equation rules on the information page to determine which of the other substances will dissociate:

2HI(aq) + NIS (s) → NiI₂(aq) + H₂S(g)

yes no yes

Step 3: Dissociate all soluble salts, strong acids, and strong bases (except calcium hydroxide). Leave together all "not soluble" salts and weak acids or bases:

{2H₃O}^{ + }  (aq) +  {2I}^{ - }  (aq) + NiS(s)→  { Ni}^{2 + }(aq) +  {2I}^{ - }(aq) + H₂S(g) + 2H₂O(l)

Step 4: Cross out "spectator ions" that appear on both sides of the reaction (these ions do not participate in the chemistry) and rewrite the "net" reaction using the smallest possible coefficients:

{2H₃O}^{ + } (aq) + NiS(s) →   { Ni}^{2 + } (aq) + H₂S(g) + 2H₂O(l)

4 0
3 years ago
When the hydronium ion concentration equals 10 moles per liter, what is the ph of the solution? is the solution acidic or basic?
Nata [24]

pH = - log[acid] = -log [H+]

pH= -log[10] = 1

Thus, pH is 1

if pH is 7, the solution is neutral and if pH is greater than 7 the solution is basic and if it is less than 7 the solution is acidic.

This solution have pH = 1, thus the solution is acidic.


4 0
3 years ago
The scattering of light by a colloid is called the Brownian lighting, Tyndall effect, colloidal scattering, or aggregate reflect
gladu [14]
The correct answer is the Tyndall effect. This is also known as the Tyndall scattering. It is the light scattering by the particles in a colloid or in a suspension. This phenomenon is used to determine size and density of particles in colloidal matter.
3 0
3 years ago
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Mang Kadyo has just bought a piece of land in province.The place is situated near a mountain with a lagoon on the southern part
nadya68 [22]

Answer:

a.In the garden

Explanation:

Because, inside from garden with big tub like a stock tank on your patio. They grow tubers planted in pots beneath the water and send up stems with rounded leaves and star-shaped blossoms that float on the surface.

I hope it helps to us. Always welcome my youngest sister:). keep learning and God bless.

6 0
3 years ago
Helppp pleaseeee......
Cloud [144]

Answer:

mL

Explanation:

milliliters

8 0
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