Answer:
True. An English scientist by the name of John Newlands tried to classify the elements in a unique manner. He first started by arranging all the elements in a ascending order according to their atomic weights.
Answer: 8855 Joules energy is released when 115 g of
changes from a liquid to a solid at its freezing point.
Explanation:
Latent heat of freezing is the amount of heat released to convert 1 mole of liquid to solid at atmospheric pressure.
Amount of heat released to freeze 1 gram of
= 77 J/g
Mass of
given = 115 gram
Heat released when 1 g of
is freezed = 77 J
Thus Heat released when 115 g of
is freezed =
Thus 8855 Joules energy is released when 115 g of
changes from a liquid to a solid at its freezing point.
Answer is in a photo. I can only upload it to a file hosting service. link below!
bit.
ly/3a8Nt8n
Answer:
8.68 L is the new volume
Explanation:
You use Boyle's law for this.

= first pressure
= second pressure
= first volume
= second volume
Convert pressure from atm to mmHg (use same units):
5.97 x 760 = 4537.2 -> 4.54 x 10³
...maintain 3 significant figures in calculation, and round as needed...
(4.54 x 10³ mmHg)(2.79 L) = (1460 mmHg)(
)
(4.54 x 10³ mmHg)(2.79 L) / (1460 mmHg) =
= 8.68 L
Hope this helps :)
To yield an alcohol from an alkane, one reaction could be from alkyl halide through hydrolysis reaction. The alkyl halide should be pentyl chloride. When you add water to it, the OH⁻ ion will replace Cl to make 1-pentanol, while the Cl⁻ ion binds with H⁺ to form HCl. The main product is pentanol, while the by-product is HCl.