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4 years ago

I really need help anybody there ?

Chemistry

2 answers:

blsea [12.9K]4 years ago

5 0

Soil that is rich in humus has high fertility

lesantik [10]4 years ago

3 0

The answer is Fertility

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Besides plants and animals wood and what can be what to release carbon into the air

Alecsey [184]

Humans! They inhale and Exhale Oxygen and Carbon Dioxide.

6 0

3 years ago

What phase of matter has enough kinetic energy to partially overcome the intermolecular attraction between the particles, allowi

cluponka [151]

The answer is; liquid phase

The characteristics described in the question are those of a liquid. The forces between liquid particles are weaker than the forces between solid particles because the particles are further apart. The particles are not held in a fixed position in the structure hence it can flow and take the shape of the container in which it is in.

3 0

3 years ago

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The value of Δ for the [CrF6]^3- complex is 182 kJ/mol.Calculate the expected wavelength of the absorption corresponding to prom

anastassius [24]

Answer:

6.63*10-7 m

Explanation:

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E= hc/wavelength as shown in the question.

8 0

4 years ago

Ill upvote

Aliun [14]

The answer to the given question above would be the first option. The one that is an example of <span> the conversion of electrical energy to electromagnetic energy is a NUCLEAR FUSION. Somewhat, electrical energy and electromagnetic energy are similar in a way that their energies both travel in waves. Hope this answers your question.</span>

4 0

3 years ago

Read 2 more answers

THIS IS DUE TODAY!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE HELP ME ASAPPPPPPPP CHEMISTRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

allochka39001 [22]

Answer:

$\large \boxed{\text{0.1767 mol/L}}$$

Explanation:

(a) Balanced equation

3NaOH + H₃PO₄ ⟶ Na₃PO₄ + 3H₂O

(b) Moles of NaOH

$\text{Moles of NaOH} = \text{34.52 mL NaOH} \times \dfrac{\text{0.3840 mmol NaOH}}{\text{1 mL NaOH}} = \text{13.26 mmol NaOH}$

(c) Moles of H₃PO₄

The molar ratio is 1 mol H₃PO₄:3 mol NaOH.

$\text{Moles of H$_{3}$PO}_{4} = \text{13.26 mmol NaOH} \times\dfrac{\text{ 1 mmol H$_{3}$PO}_{4}}{\text{3 mmol NaOH}}\\\\= \text{4.419 mmol H$_{3}$PO}_{4}$

(d) Molar concentration of H₃PO₄

$c = \dfrac{\text{moles of solute}}{\text{litres of solution}}\\\\c = \dfrac{n}{V} = \dfrac{\text{4.419 mmol}}{\text{25.00 mL}} = \text{0.1767 mol $\cdot$ L$^{-1}$}\\\\\text{The molar concentration of the NaOH is $\large \boxed{\textbf{0.1767 mol/L}}$}$

7 0

3 years ago