One times anything is the same number. 1 x 2900= 2900
There are approximately 160 grams in 1 mol of Fe2O3 molecules. Therefore, there would be 79/160= 0.49375 mols of Fe2O3 molecules in 79 grams. There are 5 atoms in total for each molecule of Fe2O3, therefore 79/160 * 5 = 79/32 = 2.46875 mols of atoms.
It's b. calcium
because the outer electron structure in all of that element is similar, they have the same chemical and physical properties.<span />
Answer:
one could be the weather.
phenotypes are physical characteristics of a person and there non genetic factors that play a role.
weather and environmental factors, your surroundings and orders related to the environment basically