Which type of defect that occurs in ceramic s lead s to the formation of at least two vacancies? o frenkel dislocation interstitial
the theoretical density for sodium chloride. on the basis of crystal structure, compute
cera mics have the greatest resistance to breaking under which type of stress? shear ocompressive tensile
the term used to describe materials that are used in high temperature applications due to their high melting point is: alloys refractories dies
which type of ceramic crystal structure contains more than one cation?
what would be the expected crystal structure of a ceramic that is made from barium and chlorine? rock salt/nacl zinc blende diamond cubis fluorite
what of the following dictates the ratio of anions and cations allowable for a particular ceramic? tetrahedral spacing o lon size neutron concentration dislocations electroneutrality

you need to stop taking that class

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.  

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o