1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tresset_1 [31]
2 years ago
14

Select all steps below that you followed to practice laboratory safety during the experiment. used tongs or a test tube holder t

o hold materials over the Bunsen burner flame wore gloves and goggles made careful observations of the products and reactants did not smell the gases produced
Chemistry
2 answers:
uysha [10]2 years ago
8 0

Explanation:

Steps followed to practice laboratory safety during the experiment are as follows.

  • Used tongs or a test tube holder to hold materials over the Bunsen burner flame.
  • Wore gloves and goggles.
  • Made careful observations of the products and reactants.
  • Did not smell the gases produced.

When we heat a test tube over bunsen flame then the tube gets hot and when we hold it with bare hands then out hands will burn. Therefore, it is advised to hold test tube with the help of tongs or a holder so that our hands did not burn.

We should also wear gloves and goggles so that any acid would not spill directly on our hands, skin and eyes as it can affect or damage the skin severely.

Careful observations were made so that correct calculations about the experiment can be carried out.

It is also advised that we should not smell the gases produced but gases move freely from one place to another in a laboratory or any where else.

So, we can try to avoid it by covering our mouth with a cloth but we cannot stop it. If we keep on inhaling the gases produced in a laboratory then it can also lead to severe disease or defect in the human body.

Sindrei [870]2 years ago
4 0

Answer: Its 1,2,4

....................................

You might be interested in
What two measurements are needed to calculate speed?
Alchen [17]

Answer:

Two essential measurements to calculating average speed are Distance and Time

Explanation:

hope it helps you

5 0
2 years ago
Read 2 more answers
Why do we crack molecules?
tino4ka555 [31]

We need to crack molecules in order for us to get the desired molecule. For example, in the extraction of crude oil, after entering the fractional distillation, it will give products base on their molecular structure. The products are gasoline, diesel fuel, jet fuel, wax, asbestos,kerosene.

4 0
3 years ago
Read 2 more answers
Homeostasis means maintaining
Zielflug [23.3K]

Answer:

Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment. Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points.

Explanation:

So D. Glad to help! :D

4 0
2 years ago
Read 2 more answers
Which of the following is not a phase change?
sweet [91]
C. Diffusion is not a phase change.
6 0
2 years ago
The atomic number of gold (Au) is 79, and it has a mass number of 197. How many electrons are present in each atom of gold?
aliya0001 [1]
There would be 79 electrons present in each atom of gold. I hope this helps :)
8 0
2 years ago
Other questions:
  • What are five key accomplishments of Marie Curie?
    9·1 answer
  • Review this reaction:H2SO4 + NaOH ?.What are the product(s)?Na2SO4H2ONa2SO4 and H2ONaH and SO4OHH3SO5
    14·2 answers
  • A jewelry company has announced that they have created gold from reacting copper and carbon in a chemical process. according to
    14·1 answer
  • Which of the following describes a community?
    15·2 answers
  • Which is the best method for organizing information collected in an investigation? Plz help
    10·2 answers
  • What are crayons made of?
    12·2 answers
  • What is the average mass of a single argon atom in grams?
    5·1 answer
  • How do you convert the measured mass of a substance to moles?
    9·2 answers
  • Please help ASAP thank you!!!!!
    8·1 answer
  • 3. Do distilled water conduct electricity? What will happen if we add sugar to it and
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!