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marta [7]
4 years ago
8

Which practice poses the greatest safety concern?

Chemistry
2 answers:
kumpel [21]4 years ago
6 0
B. Accumulating clutter on the lab bench 
Goshia [24]4 years ago
3 0

The correct option is B.

There are many housekeeping rules that one has to observe when one is working in the laboratory in order to ensure safety. One of these rules is that one should take precaution not to accumulate clutters on the work bench. Littering the work bench with clutters will limit the amount of space that one has to work and these clutters can constitute dangers, for instances, clutter can hinder access to emergency equipment during emergency situations. It is important that laboratory working bench should be kept clean and tidy at all time.

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1.
Tresset [83]

Answer:

A sample of water boils and releases gas.

Explanation:

Physical change is a change where no any chemical reaction takes place only the chemical composition of matter changes. It is a reversible process .

Burning of newspaper, rusting of iron, plant changes carbon dioxide and water into sugar (photosynthesis) are  chemical reaction and irreversible process.

6 0
3 years ago
Read 2 more answers
A(n) 816 ml sample of hydrogen was collected over water at 21.0◦c on a day when the barometric pressure was 755 torr. what volum
hammer [34]
The correct answer is A

6 0
4 years ago
Calculate the value of [CH3OH][CO][H2]2 when all concentrations are 2.4. Keep in mind that the reaction may not be at equilibriu
NikAS [45]

Explanation:

The given reaction will be as follows.

            CO + 2H_{2} \leftrightharpoons CH_{3}OH

So, equilibrium constant for this equation will be as follows.

              K_{c} = \frac{[CH_{3}OH]}{[CO][H_{2}]^{2}}

As it is given that concentration of all the species is 2.4. Therefore, calculate the value of equilibrium constant as follows.

               K_{c} = \frac{[CH_{3}OH]}{[CO][H_{2}]^{2}}

                       = \frac{2.4}{2.4 \times (2.4)^{2}}

                       = 0.173

Thus, we can conclude that equilibrium constant for the given reaction is 0.173.  

3 0
3 years ago
Helppppppp I have a brain fart ....
kherson [118]

Answer:

Hello  there!

The first answer is hot

The second answer is sunshine!

Explanation:

Those make the most sense

Have a great day!

6 0
3 years ago
Draw a negative relationship between variables
ankoles [38]
I hope this helped♡ I drew the realationship of variables

5 0
4 years ago
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