Answer:
Its B
Explanation:
hope its help by the way iam dream
Explanation:
Apply Boyle's Law :-
P1V1 = P2V2
- Where P1 is 25 atm
- V1 is 3L
- P2 is 75 atm
- V2 is what we need to find out.
25 × 3 = 75 × V2
![\tt{V_2 = \dfrac{ 25 \times 3}{75}}](https://tex.z-dn.net/?f=%5Ctt%7BV_2%20%3D%20%5Cdfrac%7B%2025%20%5Ctimes%203%7D%7B75%7D%7D)
![\tt{V_2 = \dfrac{75}{75}}](https://tex.z-dn.net/?f=%5Ctt%7BV_2%20%3D%20%5Cdfrac%7B75%7D%7B75%7D%7D)
<u>So, the answer is d) Part, 1L .</u>
Hope it helps :)
ΔH = Enthalpy of formation of products - <span>Enthalpy of formation of rectants.</span>
ΔH = [ΔHf (CO2)(s) + ΔHf (H2)(g) ] − [ ΔHf (CO)(g) + ΔHf (H2O)(g) ]
ΔHf (CO2) = <span>−393.509 kJ/mol
</span>ΔHf (H2) = 0 kJ/mol
ΔHf (CO) = −110.525 kJ/mol
ΔHf (H2O) = −241.818 kJ/mol
ΔH = [−393.509 + 0 ] − [ −110.525 + (−241.818) ] =
−41.166 kJ/mol , answer.
<span>Isotopes are atoms of the same element with the same number of protons and same number of electrons but with <span>different
number of neutrons. They differ in the number of neutrons that is why
they also differ in mass numbers. Since they have the same number of
protons, they have the same atomic number.
For instance, when the
nucleus of the isotope with a 68.926 amu, there are 30 protons and 39
neutrons in the nucleus. The best example for this is Zn (zinc-69
isotope) and Ga (gallium-69 isotope) which has 68.926 amu and 68.925 amu
respectively.
</span></span>
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.
Hopes this Helps :D
Mark me Brainliest :)