What is the percent composition by mass of oxygen in magnesium oxide, MgO?
Answer: 39.7 percent
2 atome nitrogen , 1 is correct
Answer:
Living things in the ocean are able to move carbon from the atmosphere into surface waters.
Explanation:
Answer:
the appropriateness is the 5most in a number that much of it was in a state th state three times a week in a year as well and the only way that I can be separated is the way to make it a point to get the most person
Answer : The correct option is, electrons are not shared equally between atoms.
Explanation :
Polar covalent bond : It is a type of chemical bond in which a pair of electrons are not shared equally between the two atoms.
In polar covalent bond, the electrons are not shared equally because one atom spends more time with the electrons than the another atom. In this, one atom has more tendency to pull an electron than the other atom.
For example :
is an example of polar covalent bond. In water molecule, oxygen spends more time with the electron than the hydrogen and oxygen carries a partial negative charge.