I have a sample of seawater with salinity S = 35.00 at 5*C, and a density of 1027.677 kg/m3. What is the concentration of the magnesium ion in this sample in units of: (i) mmol/kg; and (ii) mmol/L?

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)