Answer:
60
Explanation:
5x10=50-5 = 45 2x10-5= 15 45+15=60
C3H7NO2
its an amino acid
its called
Alanine
Structure of : the carboxylic and amine groups are common to all amino acids. The central carbon atom is the Carbon atom
http://cmt.dur.ac.uk/sjc/thesis_prt/node8.html
https://www.chem.purdue.edu/jmol/molecules/alanin.html
There will be 1.11 grams of the sample of radon-222 left. This answer can be obtained using the formula of half life to get the rate constant which will be used in another equation later on.
Half-life (t) = ln2/k = 3.8 days
k = 0.182407/day
Using the general equation of a first order reaction:
Ca/Cao = 1/e^(kt)
Ca/Cao = 0.01506 --> fraction of radon-222 left
This means that 1.51% of the original amount remains, so 1.51% of 73.9 is 1.11 grams.
An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms
Explanation:
To determine the charge on a given transition metal atom, you have to consider what element it is, the charges on the other atoms in the molecule, and the net charge on the molecule itself. The charges are always whole numbers, and the sum of all the atomic charges equals the charge on the molecule