2 years ago

An atom contains one proton , one electron, and one neutron. Which two particles are most similar in mass

Chemistry

2 answers:

ra1l [238]2 years ago

8 0

Answer:

proton and neutron

Explanation:

andrey2020 [161]2 years ago

3 0

Proton and neutron, which are both approximately 1 amu

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<h3>Further explanation </h3>

The law of conservation of energy can be applied to heat changes, i.e. the heat received / absorbed is the same as the heat released

Q in(gained) = Q out(lost)

Heat can be calculated using the formula:

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Q ethanol=Q water

mass ethanol=

$\tt mass=\rho\times V\\\\mass=0.789\times 45=35.505~g$

mass water =

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then the heat transfer :

$\tt 35.505\times 2.42~J/g^oC\times (t-6)=45\times 4.18~J/g^oC\times (28-t)\\\\85.922t-515.533=5266.8-188.1t\\\\274.022t=5782.33\rightarrow t=21.1^oC$

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