Newlands law of octaves was rejected mainly because of which of the following?
a. elements were arranged in increasing order of atomic mass.
b. the cycle of repetition shown by elements is similar to octave in music.
c. it could not hold good for elements heaver than calcium.
d. many radioactive elements have not been discovered then

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

Agas is contained in a thick walled balloon when the pressure changes from 1.21 atm to 2.52 the volume changes from 3.75 l to 1.72 l and the temperature change from 293k to blank k

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. 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