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Which atom should be balanced last when balancing hydrocarbon combustuion reactions?
Oxygen is often the "problem child" of balancing, so do oxygen last. In combustion reactions, it's usually easiest to do carbon first, then hydrogen, then oxygen.
What atoms should be balanced last when balancing hydrocarbon combustion reaction?
The oxygen atoms
Is argon lethal?
It is not toxic but because it takes up space it can displace oxygen and we can't last long breathing an atmosphere without oxygen.
What is the order of the structures that oxygen passes through between your nose?
Oxygen enters your nose,then goes through the trachea,to the bronchi,and last to your lungs.
Who said air is a mixture of 2 gasses that is oxygen and nitrogen?
No scientist in this or the last century. Air is mostly nitrogen, about a fifth oxygen and traces of several other gasses.
What is the first land vertebrate?
Dinosaurs ---- Dinosaurs first appeared in the last part of the Triassic period, about 230 million years ago. That was during one of the lowest ebbs of atmospheric oxygen content of the last 500 million years.
What are oldest life forms on earth?
In its 4.6 billion yearscircling the sun, the Earth has harbored an increasing diversity of life forms:for the last 3.6 billion years, simple cells(prokaryotes);for the last 3.4 billion years, cyanobacteriaperformingphotosynthesis;for the last 2 billion years, complex cells(eukaryotes);for the last 1.2 billion years, eukaryotes which sexually reproducefor the last 1 billion years, multicellular life;for the last 600 million years, simple animals;for the last 550 million years, bilaterians, water life forms with a front and a back;for the last 500 million years, fish and proto-amphibians;for the last 475 million years, land plants;for the last 400 million years, insects and seeds;for the last 360 million years, amphibians;for the last 300 million years, reptiles;for the last 200 million years, mammals;for the last 150 million years, birds;for the last 130 million years, flowers;for the last 60 million years, the primates,for the last 20 million years, the family Hominidae(great apes);for the last 2.5 million years, the genus Homo (human predecessors);for the last 200,000 years, anatomically modern humans.Periodic extinctions have temporarily reduced diversity, eliminating:2.4 billion years ago, many obligate anaerobes, in the oxygen catastrophe;252 million years ago, the trilobites, in the Permian-Triassic extinction event;66 million years ago, the pterosaurs and nonavian dinosaurs, in the Cretaceous-Paleogene extinction event.all dates are approximate
Why world's population has increased rapidly in last hundred years and main problems will cause?
Why world's population has increased rapidly in last hundred years and main problems will cause?
How long did the Ordovician period last?
The Ordovician lasted for 47 million years from 490 to 443 Million Years Ago.
How long does an iceage last?
20,000 years . Or several million years.
How long did ordovician last?
The Ordovician lasted for 47 million years from 490 to 443 Million Years Ago.
How has the climate changed over the last 100 years?
The temperature has increased.
What allergy has increased dramatically in recent years?
Food ( as opposed to non food) allergies or intolerance has increased dramatically over the last twenty years.
How long did the stone last?
2.5 million years
How long did the Cambrian last?
55 million years
When did the last mass extinction occur in years?
65 million years ago
How long did Ordovician period last?
The Ordovician lasted for 47 million years from 490 to 443 Million Years Ago.
