(a) 69.44 g/mol
(b) 46.4 g M/mol O
46.4/69.4 = 0.668 = moles M
16/16 = 1 mole O
(c) M2O3
d) Chromium which has a 51.9 amu
Oxygen is an element that exists as a molecule in its natural state. It originally contains no ions and later atoms are converted into ions when it is required.
Element 1 is hydrogen; element 8 is oxygen. Thus water, H2O, is such a substance. Another less familiar one is hydrogen peroxide, H2O2.
Oxygen is an element. Gaseous oxygen (the kind in the air you breathe) is called molecular as it consists of two oxygen atoms (O2).
It contains Silica which is an element that is combined with Oxygen from the atmosphere to make Silicate which is soil. (this is pure sand and not contaminated by anything)
Anything with "oxide" in the name is not an element, just a compound that contains oxygen. Only elements have atomic numbers, and that of oxygen is 8.
Oxygen is an element - it contains no other constituent gases.
Sulphur and Oxygen
Carbon, Hydrogen and Oxygen.
An oxide is a compound that contains oxygen and at least one other element that is less electronegative than oxygen.
An oxide is a compound that contains oxygen and at least one other element that is less electronegative than oxygen.
Those are elements. You can't have elements inside an element.
None! Xenon and oxygen are both elements, and by definition, no element contains any amount of any other element.
SO3 is the sulfate radical; it contains sulfur and oxygen.
several, oxygen and carbon in particular
Examples are: oxygen, hydrogen, nitrogen, etc.
No. Oxygen is an element and contains only oxygen atoms. Its formula is O2 (where the 2 is a subscript).
Hydroxide is not an element. Instead, it is a polyatomic anion that contains the two elements hydrogen and oxygen.