Answer:
The answer is 16
Explanation:
It needs to be hald of the medium so devide the 2 numbers
Answer:
(a) Equation of reaction:
2Na + 2H20 = 2NaOH + H2
(b) 0.46g of sodium was used in the reaction
Explanation:
(a) 2 moles of sodium reacted with 2 moles of water to yield 2 moles of sodium hydroxide and 1 mole of hydrogen gas
(b) mass of hydrogen gas produced (m) = PVM/RT
P = 101.3kpa = 1atm, V = 246mL = 246cm^3, M = 2g/mol, R = 82.057cm^3.atm/gmol.K, T = 25°C = 25+273 = 298K
m = (1×246×2)/(82.057×298) = 0.02g of hydrogen gas
From the equation of reaction
2 moles (46g) of sodium produced 1 mole (2g) of hydrogen gas
0.02g of hydrogen gas was produced by (46×0.02)/2 = 0.46g of sodium
Answer:
atomic number
Explanation:
i'm assuming ur in eighth grade, bc same anyway good luck.
Answer:
The reaction between 3-nitrophthalic acid and hydrazine is highly vigorous. Therefore, the answer is <em>option C</em>.
Explanation:
Triethylene glycol is a high-boiling solvent which necessarily used to contain the synthesis of luminol, which is obtained from the reaction between 3-nitrophthalic acid and aqueous hydrazine. However, this reaction is carried out at a very high temperature, the prior addition of triethylene glycol can allow sufficient reflux for the required completion time without evaporating the solvent fully.
Furthermore, Luminol is an organic compound used to detect metallic ions in Biology. For example, it is used to detect blood traces in forensic investigations.