There are 1,69*10^2^4 molecules. Hope this helps. This was a hard question so if im right can u give brainliest?
Answer:
20
Explanation:
Hi there!
We need to find the atomic number of an atom that has 20 protons and 20 neutrons
the atomic number of an atom is equivalent to the amount of protons an atom has, as the number of protons determines what element an atom is.
Since the atom has 20 protons, the atomic number of the said atom is <u>20</u>
Hope this helps!
B is the correct answer to your question
Answer:
D. Kb = 1.8 × 10⁻⁵
Explanation:
The strongest base has the largest Kb value.
The largest Kb value has the smallest negative exponent.
So, the strongest base has Kb = 1.8 × 10⁻⁵.
Answer:
Explanation:
a) .0003050 significant figure - 4
b) 432.00 significant figure-5
c) .0000008001 significant figure -4
d) 200608.0 significant figure -7
e) .00001503 significant figure-4
f) 60751.0 significant figure- 6.
zero after decimal are all significant . zero before decimal is significant only when it is preceded by a digit.All digits are significant.
