Question 17 (1 point)
When a one solar mass star evolves to a red giant stage
a. the core get...
Chemistry, 27.10.2020 19:40 ginocousins06
Question 17 (1 point)
When a one solar mass star evolves to a red giant stage
a. the core gets hotter and the surface getters hotter
b. the core gets hotter and the surface gets cooler
c. the core gets cooler and the surface gets hotter
d. the core gets cooler and the surface gets cooler
e. astronomers have no idea what really happens
Answers: 1
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Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons
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Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4:
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