How many liters of hydrogen at STP can be produced by the reaction of 4.15 g of zinc with hydrochloric acid: Zn + 2HCl \to ZnCl_2 + H_2 Consider the balanced reaction given below. 3ZnCl2(g) + 2Al(s) arrow 2AlCl3(g) + 3Zn...
Zinc is part of group 12 on the periodic table, and its atomic number is 30. It is a silver or gray metal typically mined in ores. It has been used to make brass, an alloy of copper and zinc. Valence Electrons:The electrons in the outer shell of an element are called the '...
Initially Z-selective alkyne semihydrogenation occurs as the reaction vessel is warming. Formation of E-stilbene is observed when the temperature reaches 80C after 90 minutes, and after several hours the E-stilbene is the major product. The ReactIR data suggests that two different mechanisms occur....
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“Human growth hormone is nothing. Anyone who calls it a steroid is grossly misinformed. Testosterone to me is ALSO important for a sense of well-being when you get older. Everyone over 40 years old would be wise to investigate it because it increases your quality of life. Mark my words,...
(B)PCl5 is reacted with heavy water. ( C)H3PO3 is heated. View Solution What happens when H2PO3 is heated? View Solution What happens when : (i) PCl5, is heated (ii) H3PO3 is heated View Solution What happens when H3PO3 is heated ? View Solution What happens when KMnO4 is heated...
(A)PCl5 is heated. (B)PCl5 is reacted with heavy water. ( C)H3PO3 is heated. View Solution What happens when H2PO3 is heated? View Solution What happens when : (i) PCl5, is heated (ii) H3PO3 is heated View Solution What happens when H3PO3 is heated ? View Solution What happe...
Zinc protects steel in two ways. First, it is highly resistant to rust; iron, a major component of steel, reacts very easily with oxygen and moisture and will eventually disintegrate. The layer of zinc on the surface prevents those elements from reaching the steel so quickly. It also develo...
is unclear, but it responds well to topical steroids and to topical antifungal creams. Medicated shampoos containing tar, selenium sulfide, and zinc pyrithione are often effective. This condition commonly improves spontaneously but will ultimately recur. There is no cure so treatment must continue ...
In this process, propylene is reacted with water in the presence of a catalyst, such as phosphoric acid or zinc oxide. The catalyst helps to speed up the reaction and produce a higher yield of IPA. The direct hydration process is more environmentally friendly than the indirect hydration ...