Answer:
The Bohr model of the atom explains the reactivity of all atoms.
Answer:
the 2p5 should have filled up one more so it would be 2p6 ...which assuming it's not an excited electron?
Caffeine is a Central Nervous System stimulant of the methlyxanthine class. It is the world's most widely consumed psychoactive drug. Unlike many other psychoactive substances, it is legal and unregulated im nearly all parts of the world.
Answer:
The heat contained is 1236 Joules
Explanation:
As we know
T
Where
T is the change in temperature
m is the mass in grams
c is the specific heat of water (ice) = 2.06 joules/gram
Substituting the given values, we get -
Joules
The number is written in scientific notation.
The significant figures are the numbers known precisely plus 1 digit that is uncertain.
When the numbers are expressed in scientific notation all the digits before 10^n are significant.
So, 7 and 8 are significant figures and the answer is that the number of significant figures is 2.
Answer: 2