Abook is found to have a mass of 0.534 kg. what is the force of the earth on the book?

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

Who discovered a pattern to the elements in 1869?

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?