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3 years ago

12

Cuáles son las características y funciones de los organismos

1 answer:

slavikrds [6]3 years ago

3 0

La vida es el conjunto de cualidades propias de los seres vivos, ellos tienen una compleja estructura material y poseen características que los diferencia de los seres inanimados, entre las que se distinguen la irritabilidad, adaptación, reproducción, metabolismo, crecimiento y homeostasis.

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Evidence for sea-floor spreading has come from

Taya2010 [7]

Answer B because of how it differs throughout time

6 0

3 years ago

Read 2 more answers

The atomic masses of 35-Cl (75.53 percent) and 37-Cl (24.47 percent) are 34.968 amu and 36.956 amu, respectively. Calculate the

AlladinOne [14]

Answer:

35.45 amu is the average atomic mass of chlorine.

Explanation:

The average atomic mass is given :

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$

Atomic mass of 35-Cl = 34.968 amu

Percentage abundance of 35-Cl = 75.53%

Fractional abundance of 35-Cl = 0.7553

Atomic mass of 37-Cl = 36.956 amu

Percentage abundance of 37-Cl = 24.47%

Fractional abundance of 37-Cl = 0.2447

Average atomic mass of chlorine:

$=34.968 amu\times 0.7553+36.956 amu\times 0.2447=35.45 amu$

35.45 amu is the average atomic mass of chlorine.

4 0

4 years ago

A 51.9 g sample of quartz is put into a calorimeter (see sketch at right) that contains 300.0 g of water. The quartz sample star

Trava [24]

Answer:

The specific heat capacity of quartz is 0.71 J/g°C.

Explanation:

Heat lost by quartz will be equal to heat gained by the water

$-Q_1=Q_2$

Mass of quartz= $m_1=51.9 g$

Specific heat capacity of quartz= $c_1=?$

Initial temperature of the quartz= $T_1=97.8^oC$

Final temperature = $T_2=T = 19.3^oC$

$Q_1=m_1c_1\times (T-T_1)$

Mass of water= $m_2=300.0 g$

Specific heat capacity of water= $c_2=4.18 J/g^oC$

Initial temperature of the water = $T_3=17.0 ^oC$

Final temperature of water = $T_2=T=19.3^oC$

$Q_2=m_2c_2\times (T-T_3)$

$-Q_1=Q_2$

$-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)$

On substituting all values:

$-(51.9 gc_1\times (19.3^oC-97.8^oC))=300.0 g\times 4.18 J/g^oC\times (19.3^oC-170^oC)$

we get:

$c_1 =0.7079 J/g^oC\approx 0.71 J/g^oC$

The specific heat capacity of quartz is 0.71 J/g°C.

5 0

3 years ago

0.5moles of monoalkanoic acid weighs 44g. determine the molecular formular

Vlada [557]

Answer:

C4H8O2

Explanation:

Butanoic acid

C4H8O2

7 0

3 years ago

How many atoms of lodine(I) are in 0.156 grams of I?

CaHeK987 [17]

Answer: iodine 131 iodine 132 isotopes

Explanation:

4 0

3 years ago