The atomic number is the number of _____ an atom
1 answer:
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Answer:
Explanation:
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In this case, since isotopes of the same element have the same number of protons and electrons but different atomic mass, we can compute the number of neutrons by subtracting the number of protons to the atomic mass of the isotope; thus, for Ga-69 and Ga-71 (rounded up to whole numbers), we obtain:
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Answer: The amount of heat energy in joules required to raise the temperature is 526 Joules
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed = ?
m= mass of substance = 7.40 g
c = specific heat capacity =
Initial temperature of the water = = 29.0°C
Final temperature of the water = = 46.0°C
Change in temperature ,
Putting in the values, we get:
The amount of heat energy in joules required to raise the temperature is 526 Joules