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Svetllana [295]
3 years ago
7

Please help me Thank you

Chemistry
1 answer:
Mamont248 [21]3 years ago
6 0

Answer:

A

Explanation:

A is the answer because it is explaining how wolves are ancestors of dogs

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H-1
bonufazy [111]
Answer = B = Neutrons and Mass Number

Isotopes 
are defined as those atoms which have same atomic number but different atomic masses.

Atomic mass is basically the number of protons and neutrons present in an atom.

Atomic number is the number of protons present in an atom.

So, in isotopes the number of protons are same but the number of neutrons vary due to which atomic masses also vary.
In given three isotopes, all have same number of protons but different number of neutrons.
i.e.
H-1 = 1 P + 0 N = 1 u (Proton)
H-2 = 1 P + 1 N = 2 u (Deuterium)
H-3 = 1 P + 2 N = 3 u (Tritium)

Hence, it is clear that the number after H shows a change in number of neutrons and mass number.

7 0
3 years ago
Read 2 more answers
Cuantos moles de CO2 se requieren para reaccionar con 2 moles de Ba (OH)2
EastWind [94]

Answer:

hola soy jess, tu respuesta esta aqui

¿cuantos moles de CO2 se requiere para reaccionar 2 moles de Ba(OH)2

2 mol Ba(OH)₂ × \frac{1molCO_{2} }{1molBa (OH)_{2}}

1molBa(OH)

2

1molCO

2

= 2 moles CO₂

Explanation:

espero que pueda ayudarte

hermana/hermano

lo que

hahahaha

3 0
3 years ago
What type of reaction occurs between aqueous ammonia solution and an acid?
gizmo_the_mogwai [7]
Neutralization reaction.
8 0
3 years ago
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What are some global problems that material scientists are working to fix
a_sh-v [17]
Global warming, the hole inside the atmosphere in Oklahoma , california .
4 0
3 years ago
What is the moons role in causing tides ?
siniylev [52]

The gravitational pull generates this cool thing called tidal force, which kinda pushes the water to the side closest to the moon. When the tide is high, that means the moons closer to that point than somewhere else.

Two sides will always have high tide and two sides will always have low tide.

7 0
2 years ago
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