Answer:
Siis the answer I hope this help
I won't give you the answer, but I will give you the process and then you can plug in the numbers. I'm guessing you are looking for how many MOLES are in 63.658g of Carbon. What you need to do to solve this is to use the molar mass of Carbon plugged into the dimensional analysis process. That might sound confusing, so let me give you a sample question.
Now, you plug in the numbers in your problem into that sample process. And if you don't know where to find the molar mass, it's simple.
The Molar mass of an element is the same as the atomic mass. So Hydrogen has the atomic mass of 1.01u, and it also has the molar mass of 1.01 grams per mole.
b. A mole of a monatomic element corresponds to one Avogadro's number of atoms.
c. One mole of a monatomic element has a mass equal to its atomic mass expressed in grams.
d. One mole of water contains 1/2 mole of oxygen atoms.
e. None of the above
It is false that d. One mole of water contains 1/2 mole of oxygen atoms.
Let's consider which of the following statements about the mole is false.
a. The size of a mole of atoms has a reasonable mass. TRUE. For instance, 1 mole of Na has a mass of 23 grams.
b. A mole of a monatomic element corresponds to one Avogadro's number of atoms. TRUE. A mole of atoms contains 6.02 × 10²³ atoms (Avogadro's number).
c. One mole of a monatomic element has a mass equal to its atomic mass expressed in grams. TRUE. For instance, the molar mass of Na is 23 g/mol and the atomic mass is 23 amu.
d. One mole of water contains 1/2 mole of oxygen atoms. FALSE. The molar ratio of H₂O to O is 1:1. Thus, 1 mole of H₂O contains 1 mole of O.
It is false that d. One mole of water contains 1/2 mole of oxygen atoms.
Learn more: brainly.com/question/11580870
Answer:
The answer is D.
Explanation:
Hope this helps.
B. For most of its life cycle, star A appeared substantially brighter than star B from earth
C. For most of its life cycle, star B appeared substantially brighter than star A from earth
Only five supernovae have ever been documented as being visible to the unaided eye, with two of those believed to be core-collapse supernovae. Thus, option B is correct.
Iron atoms are compressed so closely together that the nuclei's repelling forces cause the squeezed core to recoil, which causes the star to go supernova and generate a massive, superheated shock wave.
A supernova explosion takes place in a star over the course of just 100 seconds. A star that experiences a supernova explosion dies and leaves behind a neutron star or a black hole as a remnant.
The largest explosion that mankind have yet witnessed is a supernova. Each explosion is the incredibly bright, incredibly potent explosion of a star. The largest explosion that mankind have yet witnessed is a supernova.
Therefore, For most of its life cycle, star A appeared substantially brighter than star B from earth
Learn more about supernova here:
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Answer:
It is Ca2+
Explanation: