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elena-14-01-66 [18.8K]
3 years ago
5

Importancia de la quimica farmsceutica alimentaria y textil​

Chemistry
1 answer:
zloy xaker [14]3 years ago
8 0

La química está interviniendo en la industria textil, investigando las maneras de dar mayor resistencia y ligereza a la pieza, hacerla más duradera, más suave, más confortable, más funcional y práctica, tejidos capaces de mutar de manera instantánea en función de la climatología o la reacción al esfuerzo del propio

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uranmaximum [27]

Answer:

B - CALCIUM

Explanation:

Hopes it helps

6 0
3 years ago
If 25 mL of a HCl solution of unknown concentration was neutralized with 10 mL of a 0.30 M NaOH solution, what was the original
QveST [7]

Answer:

0.12 M

Explanation:

Step 1: Write the balanced equation

NaOH + HCl ⇒ NaCl + H₂O

Step 2: Calculate the reacting moles of NaOH

10 mL of a 0.30 M NaOH solution react.

0.010L \times \frac{0.30mol}{L} = 3.0 \times 10^{-3} mol

Step 3: Calculate the reacting moles of HCl

The molar ratio of NaOH to HCl is 1:1. The reacting moles of HCl are 1/1 × 3.0 × 10⁻³ mol = 3.0 × 10⁻³ mol.

Step 4: Calculate the concentration of HCl

3.0 × 10⁻³ mol of HCl are in 25 mL of solution.

M = \frac{3.0 \times 10^{-3} mol}{0.025L} = 0.12 M

5 0
3 years ago
HELP<br> How can you tell if mass is being conserved
Murljashka [212]
I can help say like gas is steaming from a pot like you cooking on the gas is being conserved after it evaporates and liquid if you drink water it’s going into your body so it’s being conserved and solid said like i have a brick and you throw it and it breaks it had been conserved because it’s broken
8 0
2 years ago
Write a mechanism for the conversion of the aldol addition product, 3-hydroxy-3-(4-nitrophenyl)-1-(2-pyridyl)-1-propanone, to th
LenaWriter [7]

Solution :

"Aldol" stands for the abbreviation, aldehyde and alcohol. When a ketone or an aldehyde's enolate reacts with the carbonyl of a  molecule at the alpha carbon, under the acidic or basic conditions so as to obtained the ketone or β-hydroxy aldehyde, is known as an aldol reaction.

For the conversion of the aldol addition product of a 3-hydroxy-3-(4-nitrophenyl)-1-(2-pyridyl)-1-propanone to an aldol condensation product of (E)-3-(4-nitrophenyl)-1-(2-pyridyl)-1-propenone, the mechanism is given in the diagram a below :

8 0
2 years ago
What is the predicted order of first ionization energies from highest to lowest for lithium (Li), sodium (Na), potassium (K), an
PSYCHO15rus [73]
U have it in the right order
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3 years ago
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