Answer:
Explanation:
The MSDS is Material Safety Data Sheet of HCl. Among the major hazards of hydrochloric acid is corrosive and irritant to skin and eye contact. Permanent damage may be in case.
What are the precautions to be taken while handling chemicals?
General rules for handling chemicals
Do not return chemicals to their original packaging. ...
Keep chemical containers closed. ...
Never use a wrong or an unmarked reagent. ...
Never put spatulas, stirrers or other objects into a storage container for chemicals.
What are the major hazards and what precautions would you take when handling HCl?
.Handling. Wear a chemical-resistant apron, chemical-resistant gloves and chemical splash goggles at all times when handling HCl to protect your eyes and skin. Concentrated hydrochloric acid is toxic if inhaled, so avoid breathing it in and always handle it while under a fume hood.
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Water i think because it’s a pure substance
Answer:
Hi, There!
which of these structures is found in all types of plant and animal cells
- <u><em>Cell membrane is found in both animal and plant cells.
</em></u>
- <u><em>Nucleus is found in both animal and plant cells.
</em></u>
- <u><em>Cytoplasm is found in both animal and plant cells.
</em></u>
- <u><em>Mitochondria is found in both animal and plant cells.
</em></u>
- <u><em>Endoplasmic reticulum is found in both animal and plant cells.
</em></u>
- <u><em>Golgi apparatus is found in both animal and plant cells.
</em></u>
- <u><em>Lysosomes is found in both animal and plant cells.</em></u>
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Answer:
SO3
Explanation:
Data obtained from the question include:
S = 40%
O = 59%
To obtain the empirical formula, do the following:
Divide the above by their molar mass as shown below:
S = 40/32 = 1.25
O = 59/16 = 3.69
Next, divide by the smallest as shown below:
S = 1.25/125 = 1
O = 3.69/1.25 = 3
Therefore, the empirical formula is SO3
Answer:the initial composition of the reactants is
40cm^3 of CH4
40cm^3of H2
100cm^3 of H2O
Explanation:
Balanced reaction is
CH4 +H2+5/2O2______
CO2 +3H2O
Excess KOH at room temperature absorbs CO2 whose volume is given by 40cm^3 i.e the volume by which the solution decreases
So using Gay lussac combining ratio which states that gases combine in volumes that are in simple ratio to each other if gases.
Since CO2 in the equation is 1 mole
Means 1mole represent 40cm^3
So CH4:H2:O2 are in ratio of 1:1:5/2=(40:40:100)cm^3 respectively.
