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jenyasd209 [6]
3 years ago
14

I need help setting up the problem more than solving. please help :-)

Chemistry
1 answer:
Simora [160]3 years ago
3 0
Atomic mass is the sum of all isotopes' abundace-mass product. First start by finding the abundance of isotope B (isoB% = 100- isoA% - isoC%). Now plug in all known values into (mass = Amass*A% + Bmass*B% + Cmass*C%) and solve for Bmass
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Which list correctly orders the states of matter from least to most kinetic energy?(1 point)
solmaris [256]
Soild , liquid, gas
5 0
3 years ago
Based on the molecular formula, determine whether each compound is an alkane, alkene, or alkyne. (Assume that the hydrocarbons a
topjm [15]

Answer:

a. alkyne

b. alkane

c. alkyne

d. alkene

Explanation:

The general formula for each class of compound is given below

Alkane: C_nH_{2n+2}

Alkene: C_nH_{2n}

Alkyne: C_nH_{2n-2} (assuming single multiple bonds)

Now let us classify according to the above formulas:

a. It has two hydrogen atoms less than the two times of carbon atoms hence, it's alkyne

b. It has two hydrogen atoms more than the two times of carbon atoms hence, it's alkane

c. It has two hydrogen atoms less than the two times of carbon atoms hence, it's alkyne

d. It has hydrogen atoms two times of carbon atoms hence, it's alkene

5 0
3 years ago
Read 2 more answers
2AI + 3H2SO4 -> Al2(SO4)3 + 3H2
podryga [215]

Answer:

B. 313.8

Explanation:

6 0
3 years ago
Which cell organelle most directly affects the rate of active transport? why?
Natalka [10]
The "mitochondria" produces ATP which is essential for active transport so it determines the rate of active transport
hope that helps
6 0
3 years ago
¿A qué grupo pertenecen los átomos de Z = 8, Z= 36 y Z=39? ¿Cuántas capas de electrones tiene cada uno? ¿Cuántos electrones harí
zaharov [31]

Answer:

Mira la explicación.

Explanation:

¡Hola!

En este caso, podemos encontrar facilmente el grupo al que pertenecen dichos elementos con números atómicos 8, 36 y 39 respectivamente mediante su búsqueda en la tabla periódica. Así, z=8 corresponde a oxígeno, z=36 a kriptón y z=39 a itrio.

Por otro lado, para saber el número de capas, debemos desarrollar la configuración electrónica para cada uno:

O: 1s^2,2s^2,2p^4\\Kr: 1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^{10},4p^6\\Y:1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^{10},4p^6,5s^2,4d^1

Con esto, vemos que oxígeno tiene dos capas, kripton cuatro capas e iritrio cinco, a lo que a oxígeno le faltan dos electrones para llenar dicha capa, a kripton ninguno y a iritrio nueve.

Saludos.

3 0
3 years ago
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