A proton<span> is one of the most </span>important<span> types of subatomic particles. </span>Protons <span>combine with electrons and neutrons to </span>make<span> atoms. </span>Protons<span> are nearly the same size as neutrons and are much larger than electrons. ... </span>Protons<span> are composed of two up quarks and one down quark.......Hope this helps can you mark me brainliest?</span>
Answer:
3.955*10^48
Explanation:
1 mole of a substance gives 6.02*10^23/6.57*10^24 will give x then cross multiply the answer. is 3.955*10^48
Answer:
177 mmHg
Explanation:
Given that:
The sample of a gas is with Pressure (1) 
= 500 mmHg
The initial temperature 
= 773 K
The final temperature 
= 273 K
Using ideal gas equation:
The main factor is the size of the moon. which is small compared to the earth, meaning that the moon has less gravity, and more gas is allowed to escape the surface, Which basically means theres no atmosphere.
3)
It has more surface area to react with
