If you answer and explain i will give 25 points!

a rectangular solid has dimensions of 1.8 cm by 3.5 cm by 10.0 cm and is made of brass. calculate the mass of the solid of brass has a density of 8.5 g/cm^3.

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?