The first two questions face anyone who cares to distinguish the real from the unreal and the true from the false. The third question faces anyone who makes any decisions at all, and even not deciding is itself a decision.
Balancing chemical equations Video transcript - Balancing chemical equations is one of those concepts in chemistry that often confuses people. But I think we'll see that if we work through this carefully and methodically, and we also appreciate the art of balancing chemical equations, that it's actually not too bad.
So first of all, what is a chemical equation? Well this is a chemical equation right over here. It's describing a reaction. So if I take an atom of aluminum and I add it to a dioxygen molecule, so a molecule that has two oxygens with it, under the appropriate conditions they will react to form aluminum oxide.
And the aluminum oxide molecule has two aluminum atoms and three oxygen atoms. And so you might say, "Okay, well what's "the balancing business all about?
For example, right over here on the left-hand side, how many aluminums do we have? Well on the left-hand side, we have one aluminum. How many do we have on the right-hand side? Well on the right-hand side, we have two aluminums. And so aluminum just can't appear out of thin air by virtue of some magical reaction.
You have to have the same amount of aluminums on both sides, and the same thing is true for the oxygens. Over here on the left-hand side, we have two oxygens.
They form one dioxygen molecule that has two oxygen atoms. And then over here in the aluminum oxide molecule, we have three. We have three oxygen atoms. So once again, we can't just have miraculously an oxygen atom appear out of nowhere.
So we have to balance the number of aluminums on both sides, this number and this number should be the same, and we have to balance the number of oxygens, this number and that number should be the same. So how do we do that? Well one thing might be to say, "Okay, if I've got "two aluminums here and I have one aluminum here, "well why don't I just double the number "of aluminums right over here?
I now have two aluminums, and so it looks like the aluminums are balanced, and they are indeed balanced.
But still we have an issue with the oxygens. Over here I have two oxygens. Over here I have three oxygens. So one thing that you might say is, "Okay, well how do I go from two to three?Click to share on Google+ (Opens in new window) Click to share on Pinterest (Opens in new window) Click to share on Twitter (Opens in new window).
describe what you should take into account when writing and balancing double replacement reaction equations 1. predict what the products could be 2.
apply your knowledge of electrolytes to see if any any of the products would take ions out of the solution (forming a weak electrolyte or nonelectrolyte). Fish disks 1 - - Amiga-Stuff main index Back. Acronym expansions, definitions, links, and opinions.
Click here for bottom) No Chemical element abbreviation for Nobelium, At. No. , a transuranide element and perhaps the most blatant bid for a Nobel prize in the history of chemistry. The Content - It's not just about batteries. Scroll down and see what treasures you can discover. Background.
We think of a battery today as a source of portable power, but it is no exaggeration to say that the battery is one of the most important inventions in the history of mankind. Chlorate are compounds formed between a metal and the chlorate ion, (ClO 3) When a chlorate decomposes, a metal chloride and oxygen gas are produced.