It was'nt until the 16th century that a geometric mathematical model of heliocentric system was presented <span> by a Renaissance mathematician, astronomer, </span><span>Nicolaus Copernicus
</span>Nicolaus Copernicus <span>leading to the Copernican Revolution
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Answer: the pH is 11.78
Explanation:Please see attachment for explanation
The answer is the first one
Answer:
The answer to your question is below
Explanation:
When we have the number of an element followed by a number, that number is the atomic mass.
Atomic mass is the number of protons plus neutrons.
Protons Neutrons
Carbon-13 6 13 - 6 = 7
Chromium-51 24 51- 24 = 27
Strontium-88 38 88 - 38 = 50
Boron-10 5 10 - 5 = 5
Nitrogen is a non-metal and aluminum is a metal so the bond would be ionic.