Answer:
The mass of the element is 26.20 amu
Explanation:
In this question, we are asked to calculate the mass of an element with 15 protons, 13 electrons and 11 neutrons
To calculate the atomic mass of the element, we take into consideration the masses of the individual sub atomic particles
Electrons have 0 atomic mass unit(their masses are negligible) we have no business here, Protons have a mass of
1.00727647 amu, while the mass of neutron is 1.0086654 amu
The mass of 15 protons is thus 15 * 1.00727647 = 15.10914705 amu
The mass of 11 neutrons is 11 * 1.0086654 =
11.0953194 amu
Adding this together, we have ; 11.0953194 + 15.10914705 = approximately 26.20 amu
Very small pka. can also be - pka.
Answer:
Q1) Bedrock
Q2) Topsoil
Q3) Desertification
Explanation:
YO NOW YOU HAVE TO ASNWER MY QUESTION AND SHOW UR WORK BROOOOOOOOOOOOOOOOOOOOOOOO DO IT ASAP
Energy cannot be created nor destroyed, but it changes from one form to another. Hence, option C is correct.
<h3>What is energy?</h3>
Energy is the ability to do work.
In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time.
This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.
Hence, option C is correct.
Learn more about energy here:
brainly.com/question/1932868
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