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Mila [183]
3 years ago
13

¿Qué condición conduce a una tasa de envejecimiento más lenta?

Chemistry
1 answer:
wolverine [178]3 years ago
7 0

Answer:

Las altas temperaturas es la respuesta correcta.

Explanation:

¡Que tenga un buen día!

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Given the following electronic configurations, identify how many valence electrons each atom has.
Varvara68 [4.7K]

Answer:

sodium=atomic number 11 it electronic configuration is ,K=2, L=8,M=1 Valence is 1

oxygen= atomic number 8 it electronic configuration is K=2, L=6 Valence is 2

iron= atomic number 26 it electronic configuration is K= 2 L= 8,M=8 N=6 Valence 2

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3 years ago
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4 years ago
How many atoms are there in 2.3 grams of zirconiumn?
Effectus [21]

Answer:

1.51834×10^22

Explanation:

Number of atom=Mass/Molar Mass × avogadros constant

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5 0
3 years ago
If 27.50 mL of 0.120 M NaOH neutralizes 0.248 g of HAA, what is the molar mass of unknown amino acid
tino4ka555 [31]

Answer:

75.15 g/mol

Explanation:

First, let us look at the equation of reaction;

NaOH + HAA --> NaAA + H_2O

From the balanced equation of reaction, 1 mole of NaOH is required to completely neutralize 1 mole of HAA.

Recall that: mole = molarity x volume.

Therefore, 27.50 mL, 0.120 M NaOH = 0.0275 x 0.120 = 0.0033 moles

0.0033 mole of NaOH will therefore requires 0.0033 moles of HAA for complete neutralization.

In order to find the molar mass of the unknown amino acid, recall that:

<em>mole = mass/molar mass</em>, hence, <em>molar mass = mass/mole</em>.

Therefore, molar mass of HAA = 0.248/0.0033 = 75.15 g/mol

6 0
3 years ago
What does an increase of 1 pH number represent?
Gennadij [26K]

Answer: B

Explanation:

5 0
3 years ago
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