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kogti [31]
3 years ago
12

Which isotope has 45 neutrons? O A. 80,36KT OB. 80,35Br O C. 78,345e O D. 34,17C1

Chemistry
1 answer:
Law Incorporation [45]3 years ago
4 0

Answer:

Br.

neutron = mass number - atomic number

youcan see the answer at the pic

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Which part of the cell is affected by the movement of molecules through diffusion, osmosis, and active transport? A.Cell membran
Serjik [45]

Answer:

membrana celular

Explanation:

El transporte celular es el intercambio de sustancias a través de la membrana plasmática, que es una membrana semipermeable.1​

El transporte es importante para la célula porque le permite expulsar de su interior los desechos del metabolismo, también el movimiento de sustancias que sintetiza como hormonas. Además, es la forma en que adquiere nutrientes mediante procesos de incorporación a la célula de nutrientes disueltos en el agua. Las vías de transporte a través de la membrana celular y los mecanismos básicos para las moléculas de pequeños tamaños son:

Índice

1 Transporte pasivo

1.1 Ósmosis

1.1.1 Ósmosis en una célula animal

1.1.2 Ósmosis en una célula vegetal

1.2 Difusión facilitada

2 Transporte activo

2.1 Transporte activo primario: Bomba de sodio y potasio o Bomba Na+/K+

2.2 Transporte activo secundario o cotransporte

3 Transporte en masa

3.1 Endocitosis

3.2 Exocitosis

4 Véase también

5 Referencias

6 Enlaces externos

6 0
2 years ago
What does centripetal force mean?
S_A_V [24]

Answer:

Centripetal force is basically the force that you need to keep an object moving on any curved or circular path

Explanation:

An example of centripetal force would be the force that Earth's gravity has on the Moon

Hope this helps!

8 0
3 years ago
Please help asap!!!!!!!!!!! How many molecules are present in 0.5 moles of NaOH?
laila [671]

Explanation:

oh shi sorry I wish I could help but I'm stupid

5 0
3 years ago
How many moles of xenon trioxide are present in 1. 69 grams of this compound.
Vadim26 [7]

Answer:

0.00944

Explanation:

Xenon mass number on the periodic table: 131.29

Oxygen mass number: 16.00

Add them to find the molar mass of xenon trioxide: 131.29+3(16) = 179.29g/mol

Convert this to moles

1.69g * \frac{mol}{179.29g} = 0.00944mol

3 0
2 years ago
Which statement best defines kinetic energy? A. kinetic energy is highest at the highest point of structure or model.
Art [367]

Answer:

The answer is D. Kinetic energy is the energy of motion.

Pls mark brainliest. Hope this helped. :D

7 0
2 years ago
Read 2 more answers
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