Salts can be prepared in
in various ways.
Describe a suitable thelhod to
Prepare a pure, dry sample of eachof the named salts
In your description you should
include the names of any techniques,apparatus and chemicals used
as copper sulfate
This method should use the reaction between an insoluble compound and a dilute acid
Answers
Answer:
Stimulants (also often referred to as psychostimulants or colloquially as uppers) is an overarching term that covers many drugs including those that increase activity of the central nervous system and the body,[1] drugs that are pleasurable and invigorating, or drugs that have sympathomimetic effects.[2] Stimulants are widely used throughout the world as prescription medicines as well as without a prescription (either legally or illicitly) as performance-enhancing or recreational drugs. The most frequently prescribed stimulants as of 2013 were lisdexamfetamine, methylphenidate, and amphetamine.[3] It was estimated in 2015 that the percentage of the world population that had used cocaine during a year was 0.4%. For the category "Amphetamines and prescription stimulants"
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Answer:
Horizontal addition is a summation strategy that breaks down the summands by taking note of the positional value and continuing with the addition. The sums in the addition chain do not mix the positional values, making it easier for students to comprehend the addition. When adding the broken-down values, the thousands are added to the thousands, the hundreds are added to the hundreds, and the tens to the tens, etc.