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More than 2 billion years ago, trees and plants began producing oxygen. They do this by feeding off carbon dioxide released by living beings.
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∙ 9y ago
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When the equation Li plus O2 Li2O is correctly balance what is the sum of the coefficients?
There are 2 oxygen on the left and one on the right. To balance the oxygen the blank will be 2. To balance out the lithium there are 4 on the right and there needs to be 4 on the right. So yes the sum of the coefficients is 7.
If oxygen which has an electronegativity of 3.5 bonds with hydrogen which has an electronegativity of 2.1 the bond between the two atoms will be classified as a polar blank bond?
Polar covalent bond.
In a solution the blank is dissolved by the blank?
In a solution the solute is dissolved by the solvent.
Pressure changes have no effect on the entropy of substances in the blank or blank states?
liquids and solids
Why do you prepare blank solutions?
we make blank solution because to make the zero absorbance of the substance other then analyte.
A blank is a collection of hundreds of billion of star?
Constellation
When early began living together in groups they began to farm and it was no longer necessary for anyone blank to eat?
to farm
World war 1 began after blank was assignated?
world war two began after embassitor Frans Ferdanan of Austria- hungry was assassinated.
Oxygen is carried largely bound to the blank of red blood cells?
Hemoglobin -NovaNet-
What did the magnetic and optical blank media industry earn in 1997?
The U.S. Bureau of Census reported that the magnetic and optical blank media industry earned revenues in excess of $5.9 billion in 1997
The hydroxyl group is made up of an oxygen atom and an blank atoms joined by covalent bond?
Hydrogen atom
When the civil war began there were approximately blank people living in the south?
8.5 to 9 million people living in the south
Since life began on Earth many blank have vanished and many new ones have appeared?
lol i have mr.berlin too -_________-
When people planted seeds of the wild grassets 11000 years ago the blank began?
What is blank opinions A. Domesticate B. Old stone age C. New Stone Age D nomad E. Fertile
Plants take in and release oxygen gas?
plants takes in carbon dioxide and release blank gas?
What is the word H blank blank blank blank blank blank blank blank blank blank N?
unnethe (Chaucer)
When the civil war began there were approximately blank people living in the north?
There were 18 715 055 people. In the Territories there were 220 195 people.
