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Anika [276]
2 years ago
14

Why are protons in an atom so important? Question 5 options: A. Protons determine the atoms' identity (type of element) and wher

e it is located on the periodic table. B. Protons are bigger than all the other particles in an atom. C. Protons determine an atom's chemical properties and how it will react with other elements. D. There are more protons than electrons or neutrons in a neutral atom.
Chemistry
2 answers:
Gennadij [26K]2 years ago
4 0

Your answer is A my friend as the atomic number of an atom is determined by the number of protons

Citrus2011 [14]2 years ago
3 0

I would say option A

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Two objects are brought into contact Object 1 has mass 0.76 kg, specific heat capacity 0.87) g'c and initial temperature 52.2 'C
taurus [48]

Answer:

T_F=77.4\°C

Explanation:

Hello there!

In this case, according to the given information, it turns out possible to set up the following energy equation for both objects 1 and 2:

Q_1=-Q_2

In terms of mass, specific heat and temperature change is:

m_1C_1(T_F-T_1)=-m_2C_2(T_F-T_2)

Now, solve for the final temperature, as follows:

T_F=\frac{m_1C_1T_1+m_2C_2T_2}{m_1C_1+m_2C_2}

Then, plug in the masses, specific heat and temperatures to obtain:

T_F=\frac{760g*0.87\frac{J}{g\°C} *52.2\°C+70.7g*3.071\frac{J}{g\°C}*154\°C}{760g*0.87\frac{J}{g\°C} +70.7g*3.071\frac{J}{g\°C}} \\\\T_F=77.4\°C

Yet, the values do not seem to have been given correctly in the problem, so it'll be convenient for you to recheck them.

Regards!

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3 years ago
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Answer:

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