1) responde con verdadero o falso, justifica las falsas a)_ los solidos tienen masa y volumen definidos.
b)_ cada sustancia pura tiene un propio punto de fusión y ebullición.
c)_ mientras se calienta un liquido, no siempre se produce un aumento de temeperatura.
d)_ el agua hierve a 100℃ en cualquier parte del mundo.

In which of the following belong to a category called the main group of elements? nonmetals. transition elements. halogens. alkali metals. it can be more than one answer!

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. initial mass and yield sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

Calculate the number of moles of ethane in 100 grams