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no not all of them some can just be vinegar or salt but chemicals that look extraordanary probably are, honestly i dont know
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∙ 13y ago
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Why you shouldn't mix chemicals in the science lab?
Unless you know what chemicals you are mixing, and what kinds of chemical reactions they are going to have, you don't know what will happen when you mix chemicals. There are some chemicals which, when mixed, will release a very deadly poisonous gas. There are other chemicals which, when mixed, will explode or burst into flames. Even aside from that, chemicals in a science lab are there for some reason. Someone obtained those chemicals for the lab and intends to do something with them. They are not there to play around with at random.
Why do you turn of Bunsen burner before water evaporates?
you don't have to!The above answer is dangerous and incorrect:You turn off the burner before the water evaporates so the glass will not shatter and spray glass shards and dangerous chemicals all over the lab. You should because then it will be so hot around 90-100 degrees and it can burn you
Why should you never eat in a science lab?
your food may easily be contaminated by chemicals in the lab.
Why do you use mask in a science lab?
Masks are used in a science lab to ensure safety and protect against potential hazards. They help prevent the inhalation of harmful chemicals, dust, or particles that may be present in the lab environment. Masks also help minimize the risk of contamination and spreading of microorganisms.
What is protects the scientist and the scientist's clothes from hazardous or hot chemicals?
A Lab Coat Or Lab Apron ;D
( true or false ) All chemicals in the lab are to be considereddangerous?
All chemicals in the lab are to be considered dangerous. ... Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.
What is the purpose of lab safety?
The purpose of lab safety is to keep you safe because some experiments(labs) have dangerous chemicals that could harm you.
How should you dress in the lab?
Very carefully, so as not to spill any dangerous chemicals on you before you are dressed.
Why is it important to wear a apron on the lab?
So if you spill dangerous chemicals on yourself, your clothes wont burn.
Which chemicals are toxic?
There are too many to name. Assume all chemicals in lab are toxic.
Why important to wear your lab gown always?
Dangerous chemicals could get on your skin and clothes. This could cause disease
What do you do at the lab with the chemicals?
by doing what you supose to do when in a lab
Why pupils are prohibited to enter the lab unless authorised by the teacher?
Simply because the lab has dangerous substances in them. Unsupervised children could end up throwing containers of acid and other dangerous chemicals around - causing possibly fatal injuries to others !
Why is it important to wear proper foot covering and protective clothing when working in a lab?
It is very important to make sure that you have proper protection in a lab so that you do not get harmed by whatever dangerous materials or chemicals you are using. When in a lab, you should always have eye protection, and make sure to have protection for your skin so no chemicals can come in contact with you.
What does a lab scientist do?
a lab scientists do labatory work and work in the lab with chemicals.
What is unique about elements made in the lab?
All are radioactive, dangerous and unstable
Why is it dangerous to smell chemicals in a science lab?
Scientists sometimes work with toxic chemicals which would not be healthy to inhale. Of course, they take precautions. Most of the chemicals used by chemists are not so toxic that even a slight amount, accidentally inhaled, will harm their health, but there are some which are that toxic.
