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sveticcg [70]
2 years ago
8

PLEASE HURRY IM TIMED I WILL GVE BRAINLIEST IF CORRECT

Chemistry
1 answer:
Whitepunk [10]2 years ago
6 0
So basically D,E They do absorb water but the roots mainly do that so I don’t know if you should put that.
Please give me brainliest if I’m correct

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One mole of H2 S o4 contains off 4.22 into 10 raise to power 24 atoms is it true or false​
zalisa [80]

Answer:

False. One mole of a certain substance will always contain 6.002 \cdot 10^{23} atoms of that substance.

Explanation:

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5 0
3 years ago
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Limestone is composed almost entirely of calcite which has the chemical formula caco 3. As a result, limestone is classified as
Andrei [34K]

limestone is classified as sedimentary rock

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3 years ago
A saturated solution of lead(ii) fluoride, pbf2, was prepared by dissolving solid pbf2 in water. the concentration of pb2+ ion i
katrin [286]

Equation :

PbF2 ------> Pb2+ + 2F-

Solubility product is given as:

Ksp = [Pb2+][F-]^2

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8 0
3 years ago
Enter the net ionic equation representing solid chromium (iii) hydroxide reacting with nitrous acid. express your answer as a ba
Colt1911 [192]

The net ionic equation of chromium (iii) hydroxide reacting with nitrous acid:

Cr(OH)₃ (s) + 3H⁺ (aq) ⇒ Cr³⁺ (aq) + 3H₂O (l)

<h3>Further explanation</h3>

The electrolyte in the solution produces ions.

The equation of a chemical reaction can be expressed in the equation of the ions

For strong electrolytes (the ionization rate = 1) is written in the form of separate ions, while the weak electrolyte (degree of ionization <1) is still written as an un-ionized molecule

In the ion equation, there is a spectator ion that is the ion which does not change (does not react) because it is present before and after the reaction

When these ions are removed, the ionic equation is called the net ionic equation

For gases and solids including water (H₂O) can be written as an ionized molecule

So only the dissolved compound is ionized ((expressed in symbol aq)

From the problem, it is stated that chromium (iii) hydroxide reacting with nitrous acid.

Reactions that occur:

Cr(OH)₃ (s) + 3HNO₂ (aq) ⇒ Cr(NO₂)₃ (aq) + 3H₂O (l)

Cr (OH)₃ solid form that does not decompose in the form of ions, as well as water (H₂O)

So the ionic equation becomes:

Cr(OH)₃ (s) + 3H⁺ (aq) + 3NO₂⁻ (aq) ⇒ Cr³⁺ (aq) + 3NO₂⁻ (aq) + 3H₂O (l)

There is an ion spectator that is 3NO₂⁻, so that if it is removed a net ionic equation will be formed:

Cr(OH)₃ (s) + 3H⁺ (aq) ⇒ Cr³⁺ (aq) + 3H₂O (l)

<h3>Learn more</h3>

the net ionic equation

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brainly.com/question/9830467

Keywords: the net ionic equation, an ion spectator

5 0
3 years ago
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TWO HYDROGEN ATOMS COMBINE TO FORM HELIUM ATOMS RESULTING IN THE FORMATION OF...
motikmotik

when two heavy hydrogens combine to for helium , it results in the formation of energy, and a neutron, along with the helium atom

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