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Why you should never take more of a chemical than you estimate you will need for an experiment?
Wiki User
∙ 9y ago
The reasons behind precise measuring and procedural execution two-fold. First, this minimizes the possibility of creating excess reagent. Second, it is a potential safety and waste minimizing step.
Wiki User
∙ 9y ago
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When you estimate is your answer exact or approximate?
Estimates are never exact. They are a best guess at what the answer is. They are always going to be approximate.
Is the height of a plant independent or dependent?
the height of a plant is independent because you never have an exact estimate for everything.
Why do you estimate when adding or subtracting decimal numbers?
In more than 40 years as a mathematician, I have never needed to do so.
What is Osama bin Laden IQ?
Obviously, he has never taken an IQ test. But experts estimate his IQ as 195!!
How doen you estimate an irrational number?
An irrational number has a never-ending decimal expansion. To estimate it's value, you'd just state the expansion to some number of digits. Ex: sqrt(2) is approximately 1.4142135623730950488 pi is approximately 3.14159265358979323846
What you should never skip in experiment?
Safety precautions.
What should you never do to identify a chemical?
taste or touch
What is The thing you change in an experiment?
The chemical composition and physical state of substances can change during an experiment.For example two reactants in solid or liquid form can react in an experiment to give a product in a gaseous form.
Should you taste substances used in experiments?
No. You should never taste anything used in any kind of an experiment for any reason.
What should you never do with a chemical?
Getting that inside eyes, blood, lungs, or stomach
Why should chlorine bleach and ammonia never be mixed?
toxic chemical reaction
Should you never return a chemical ti its original container after an experiment?
That is correct. Chemicals in their original container have a known purity, but there is always the chance that the temporary container you used was contaminated without your knowledge. If you put the material back that contamination then contaminates the entire container.
When is a chemical not a chemical?
never
Why should you never tasta a chemical to see if it is an acid?
As a simple rule never taste chemicals unless you are absolutely certain you know what they and that they are harmless.
When will be first time travel experiment?
never
When is the only time an experiment is considered a failure?
An experiment is never a failure. Experiments are just to find out what happens.
What is the other part of the experiment that will never change?
The constant.
